/* Copyright 2016 The Kubernetes Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package kubelet import ( "context" "errors" "fmt" "net" "os" "path/filepath" "reflect" "sort" "strings" "testing" "time" "github.com/google/go-cmp/cmp" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" v1 "k8s.io/api/core/v1" apiequality "k8s.io/apimachinery/pkg/api/equality" apierrors "k8s.io/apimachinery/pkg/api/errors" "k8s.io/apimachinery/pkg/api/resource" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/labels" "k8s.io/apimachinery/pkg/runtime" "k8s.io/apimachinery/pkg/types" utilfeature "k8s.io/apiserver/pkg/util/feature" core "k8s.io/client-go/testing" "k8s.io/client-go/tools/record" featuregatetesting "k8s.io/component-base/featuregate/testing" "k8s.io/component-base/metrics/testutil" runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1" "k8s.io/kubelet/pkg/cri/streaming/portforward" "k8s.io/kubelet/pkg/cri/streaming/remotecommand" _ "k8s.io/kubernetes/pkg/apis/core/install" "k8s.io/kubernetes/pkg/features" kubecontainer "k8s.io/kubernetes/pkg/kubelet/container" containertest "k8s.io/kubernetes/pkg/kubelet/container/testing" "k8s.io/kubernetes/pkg/kubelet/metrics" "k8s.io/kubernetes/pkg/kubelet/prober/results" "k8s.io/kubernetes/pkg/kubelet/secret" "k8s.io/kubernetes/pkg/kubelet/status" kubetypes "k8s.io/kubernetes/pkg/kubelet/types" netutils "k8s.io/utils/net" "k8s.io/utils/ptr" ) var containerRestartPolicyAlways = v1.ContainerRestartPolicyAlways func TestNodeHostsFileContent(t *testing.T) { testCases := []struct { hostsFileName string hostAliases []v1.HostAlias rawHostsFileContent string expectedHostsFileContent string }{ { hostsFileName: "hosts_test_file1", hostAliases: []v1.HostAlias{}, rawHostsFileContent: `# hosts file for testing. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 123.45.67.89 some.domain `, expectedHostsFileContent: `# Kubernetes-managed hosts file (host network). # hosts file for testing. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 123.45.67.89 some.domain `, }, { hostsFileName: "hosts_test_file2", hostAliases: []v1.HostAlias{}, rawHostsFileContent: `# another hosts file for testing. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 12.34.56.78 another.domain `, expectedHostsFileContent: `# Kubernetes-managed hosts file (host network). # another hosts file for testing. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 12.34.56.78 another.domain `, }, { hostsFileName: "hosts_test_file1_with_host_aliases", hostAliases: []v1.HostAlias{ {IP: "123.45.67.89", Hostnames: []string{"foo", "bar", "baz"}}, }, rawHostsFileContent: `# hosts file for testing. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 123.45.67.89 some.domain `, expectedHostsFileContent: `# Kubernetes-managed hosts file (host network). # hosts file for testing. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 123.45.67.89 some.domain # Entries added by HostAliases. 123.45.67.89 foo bar baz `, }, { hostsFileName: "hosts_test_file2_with_host_aliases", hostAliases: []v1.HostAlias{ {IP: "123.45.67.89", Hostnames: []string{"foo", "bar", "baz"}}, {IP: "456.78.90.123", Hostnames: []string{"park", "doo", "boo"}}, }, rawHostsFileContent: `# another hosts file for testing. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 12.34.56.78 another.domain `, expectedHostsFileContent: `# Kubernetes-managed hosts file (host network). # another hosts file for testing. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 12.34.56.78 another.domain # Entries added by HostAliases. 123.45.67.89 foo bar baz 456.78.90.123 park doo boo `, }, } for _, testCase := range testCases { t.Run(testCase.hostsFileName, func(t *testing.T) { tmpdir, err := writeHostsFile(testCase.hostsFileName, testCase.rawHostsFileContent) require.NoError(t, err, "could not create a temp hosts file") defer os.RemoveAll(tmpdir) actualContent, fileReadErr := nodeHostsFileContent(filepath.Join(tmpdir, testCase.hostsFileName), testCase.hostAliases) require.NoError(t, fileReadErr, "could not create read hosts file") assert.Equal(t, testCase.expectedHostsFileContent, string(actualContent), "hosts file content not expected") }) } } // writeHostsFile will write a hosts file into a temporary dir, and return that dir. // Caller is responsible for deleting the dir and its contents. func writeHostsFile(filename string, cfg string) (string, error) { tmpdir, err := os.MkdirTemp("", "kubelet=kubelet_pods_test.go=") if err != nil { return "", err } return tmpdir, os.WriteFile(filepath.Join(tmpdir, filename), []byte(cfg), 0644) } func TestManagedHostsFileContent(t *testing.T) { testCases := []struct { hostIPs []string hostName string hostDomainName string hostAliases []v1.HostAlias expectedContent string }{ { hostIPs: []string{"123.45.67.89"}, hostName: "podFoo", hostAliases: []v1.HostAlias{}, expectedContent: `# Kubernetes-managed hosts file. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 123.45.67.89 podFoo `, }, { hostIPs: []string{"203.0.113.1"}, hostName: "podFoo", hostDomainName: "domainFoo", hostAliases: []v1.HostAlias{}, expectedContent: `# Kubernetes-managed hosts file. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 203.0.113.1 podFoo.domainFoo podFoo `, }, { hostIPs: []string{"203.0.113.1"}, hostName: "podFoo", hostDomainName: "domainFoo", hostAliases: []v1.HostAlias{ {IP: "123.45.67.89", Hostnames: []string{"foo", "bar", "baz"}}, }, expectedContent: `# Kubernetes-managed hosts file. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 203.0.113.1 podFoo.domainFoo podFoo # Entries added by HostAliases. 123.45.67.89 foo bar baz `, }, { hostIPs: []string{"203.0.113.1"}, hostName: "podFoo", hostDomainName: "domainFoo", hostAliases: []v1.HostAlias{ {IP: "123.45.67.89", Hostnames: []string{"foo", "bar", "baz"}}, {IP: "456.78.90.123", Hostnames: []string{"park", "doo", "boo"}}, }, expectedContent: `# Kubernetes-managed hosts file. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 203.0.113.1 podFoo.domainFoo podFoo # Entries added by HostAliases. 123.45.67.89 foo bar baz 456.78.90.123 park doo boo `, }, { hostIPs: []string{"203.0.113.1", "fd00::6"}, hostName: "podFoo", hostDomainName: "domainFoo", hostAliases: []v1.HostAlias{}, expectedContent: `# Kubernetes-managed hosts file. 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet fe00::0 ip6-mcastprefix fe00::1 ip6-allnodes fe00::2 ip6-allrouters 203.0.113.1 podFoo.domainFoo podFoo fd00::6 podFoo.domainFoo podFoo `, }, } for _, testCase := range testCases { actualContent := managedHostsFileContent(testCase.hostIPs, testCase.hostName, testCase.hostDomainName, testCase.hostAliases) assert.Equal(t, testCase.expectedContent, string(actualContent), "hosts file content not expected") } } func TestRunInContainerNoSuchPod(t *testing.T) { ctx := context.Background() testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kubelet := testKubelet.kubelet fakeRuntime := testKubelet.fakeRuntime fakeRuntime.PodList = []*containertest.FakePod{} podName := "podFoo" podNamespace := "nsFoo" containerName := "containerFoo" output, err := kubelet.RunInContainer( ctx, kubecontainer.GetPodFullName(&v1.Pod{ObjectMeta: metav1.ObjectMeta{Name: podName, Namespace: podNamespace}}), "", containerName, []string{"ls"}) assert.Error(t, err) assert.Nil(t, output, "output should be nil") } func TestRunInContainer(t *testing.T) { ctx := context.Background() for _, testError := range []error{nil, errors.New("bar")} { testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kubelet := testKubelet.kubelet fakeRuntime := testKubelet.fakeRuntime fakeCommandRunner := containertest.FakeContainerCommandRunner{ Err: testError, Stdout: "foo", } kubelet.runner = &fakeCommandRunner containerID := kubecontainer.ContainerID{Type: "test", ID: "abc1234"} fakeRuntime.PodList = []*containertest.FakePod{ {Pod: &kubecontainer.Pod{ ID: "12345678", Name: "podFoo", Namespace: "nsFoo", Containers: []*kubecontainer.Container{ {Name: "containerFoo", ID: containerID, }, }, }}, } cmd := []string{"ls"} actualOutput, err := kubelet.RunInContainer(ctx, "podFoo_nsFoo", "", "containerFoo", cmd) assert.Equal(t, containerID, fakeCommandRunner.ContainerID, "(testError=%v) ID", testError) assert.Equal(t, cmd, fakeCommandRunner.Cmd, "(testError=%v) command", testError) // this isn't 100% foolproof as a bug in a real CommandRunner where it fails to copy to stdout/stderr wouldn't be caught by this test assert.Equal(t, "foo", string(actualOutput), "(testError=%v) output", testError) assert.Equal(t, err, testError, "(testError=%v) err", testError) } } type testServiceLister struct { services []*v1.Service } func (ls testServiceLister) List(labels.Selector) ([]*v1.Service, error) { return ls.services, nil } type envs []kubecontainer.EnvVar func (e envs) Len() int { return len(e) } func (e envs) Swap(i, j int) { e[i], e[j] = e[j], e[i] } func (e envs) Less(i, j int) bool { return e[i].Name < e[j].Name } func buildService(name, namespace, clusterIP, protocol string, port int) *v1.Service { return &v1.Service{ ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: namespace}, Spec: v1.ServiceSpec{ Ports: []v1.ServicePort{{ Protocol: v1.Protocol(protocol), Port: int32(port), }}, ClusterIP: clusterIP, }, } } func TestMakeEnvironmentVariables(t *testing.T) { trueVal := true services := []*v1.Service{ buildService("kubernetes", metav1.NamespaceDefault, "1.2.3.1", "TCP", 8081), buildService("test", "test1", "1.2.3.3", "TCP", 8083), buildService("kubernetes", "test2", "1.2.3.4", "TCP", 8084), buildService("test", "test2", "1.2.3.5", "TCP", 8085), buildService("test", "test2", "None", "TCP", 8085), buildService("test", "test2", "", "TCP", 8085), buildService("not-special", metav1.NamespaceDefault, "1.2.3.8", "TCP", 8088), buildService("not-special", metav1.NamespaceDefault, "None", "TCP", 8088), buildService("not-special", metav1.NamespaceDefault, "", "TCP", 8088), } trueValue := true falseValue := false testCases := []struct { name string // the name of the test case ns string // the namespace to generate environment for enableServiceLinks *bool // enabling service links enableRelaxedEnvironmentVariableValidation bool // enable enableRelaxedEnvironmentVariableValidation feature gate container *v1.Container // the container to use nilLister bool // whether the lister should be nil staticPod bool // whether the pod should be a static pod (versus an API pod) unsyncedServices bool // whether the services should NOT be synced configMap *v1.ConfigMap // an optional ConfigMap to pull from secret *v1.Secret // an optional Secret to pull from podIPs []string // the pod IPs expectedEnvs []kubecontainer.EnvVar // a set of expected environment vars expectedError bool // does the test fail expectedEvent string // does the test emit an event }{ { name: "if services aren't synced, non-static pods should fail", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{Env: []v1.EnvVar{}}, nilLister: false, staticPod: false, unsyncedServices: true, expectedEnvs: []kubecontainer.EnvVar{}, expectedError: true, }, { name: "if services aren't synced, static pods should succeed", // if there is no service ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{Env: []v1.EnvVar{}}, nilLister: false, staticPod: true, unsyncedServices: true, }, { name: "api server = Y, kubelet = Y", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ {Name: "FOO", Value: "BAR"}, {Name: "TEST_SERVICE_HOST", Value: "1.2.3.3"}, {Name: "TEST_SERVICE_PORT", Value: "8083"}, {Name: "TEST_PORT", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP_PROTO", Value: "tcp"}, {Name: "TEST_PORT_8083_TCP_PORT", Value: "8083"}, {Name: "TEST_PORT_8083_TCP_ADDR", Value: "1.2.3.3"}, }, }, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ {Name: "FOO", Value: "BAR"}, {Name: "TEST_SERVICE_HOST", Value: "1.2.3.3"}, {Name: "TEST_SERVICE_PORT", Value: "8083"}, {Name: "TEST_PORT", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP_PROTO", Value: "tcp"}, {Name: "TEST_PORT_8083_TCP_PORT", Value: "8083"}, {Name: "TEST_PORT_8083_TCP_ADDR", Value: "1.2.3.3"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "api server = Y, kubelet = N", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ {Name: "FOO", Value: "BAR"}, {Name: "TEST_SERVICE_HOST", Value: "1.2.3.3"}, {Name: "TEST_SERVICE_PORT", Value: "8083"}, {Name: "TEST_PORT", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP_PROTO", Value: "tcp"}, {Name: "TEST_PORT_8083_TCP_PORT", Value: "8083"}, {Name: "TEST_PORT_8083_TCP_ADDR", Value: "1.2.3.3"}, }, }, nilLister: true, expectedEnvs: []kubecontainer.EnvVar{ {Name: "FOO", Value: "BAR"}, {Name: "TEST_SERVICE_HOST", Value: "1.2.3.3"}, {Name: "TEST_SERVICE_PORT", Value: "8083"}, {Name: "TEST_PORT", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP_PROTO", Value: "tcp"}, {Name: "TEST_PORT_8083_TCP_PORT", Value: "8083"}, {Name: "TEST_PORT_8083_TCP_ADDR", Value: "1.2.3.3"}, }, }, { name: "api server = N; kubelet = Y", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ {Name: "FOO", Value: "BAZ"}, }, }, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ {Name: "FOO", Value: "BAZ"}, {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "api server = N; kubelet = Y; service env vars", ns: "test1", enableServiceLinks: &trueValue, container: &v1.Container{ Env: []v1.EnvVar{ {Name: "FOO", Value: "BAZ"}, }, }, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ {Name: "FOO", Value: "BAZ"}, {Name: "TEST_SERVICE_HOST", Value: "1.2.3.3"}, {Name: "TEST_SERVICE_PORT", Value: "8083"}, {Name: "TEST_PORT", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP", Value: "tcp://1.2.3.3:8083"}, {Name: "TEST_PORT_8083_TCP_PROTO", Value: "tcp"}, {Name: "TEST_PORT_8083_TCP_PORT", Value: "8083"}, {Name: "TEST_PORT_8083_TCP_ADDR", Value: "1.2.3.3"}, {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "master service in pod ns", ns: "test2", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ {Name: "FOO", Value: "ZAP"}, }, }, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ {Name: "FOO", Value: "ZAP"}, {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "master service in pod ns, service env vars", ns: "test2", enableServiceLinks: &trueValue, container: &v1.Container{ Env: []v1.EnvVar{ {Name: "FOO", Value: "ZAP"}, }, }, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ {Name: "FOO", Value: "ZAP"}, {Name: "TEST_SERVICE_HOST", Value: "1.2.3.5"}, {Name: "TEST_SERVICE_PORT", Value: "8085"}, {Name: "TEST_PORT", Value: "tcp://1.2.3.5:8085"}, {Name: "TEST_PORT_8085_TCP", Value: "tcp://1.2.3.5:8085"}, {Name: "TEST_PORT_8085_TCP_PROTO", Value: "tcp"}, {Name: "TEST_PORT_8085_TCP_PORT", Value: "8085"}, {Name: "TEST_PORT_8085_TCP_ADDR", Value: "1.2.3.5"}, {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.4"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8084"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.4:8084"}, {Name: "KUBERNETES_PORT_8084_TCP", Value: "tcp://1.2.3.4:8084"}, {Name: "KUBERNETES_PORT_8084_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8084_TCP_PORT", Value: "8084"}, {Name: "KUBERNETES_PORT_8084_TCP_ADDR", Value: "1.2.3.4"}, }, }, { name: "pod in master service ns", ns: metav1.NamespaceDefault, enableServiceLinks: &falseValue, container: &v1.Container{}, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "pod in master service ns, service env vars", ns: metav1.NamespaceDefault, enableServiceLinks: &trueValue, container: &v1.Container{}, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ {Name: "NOT_SPECIAL_SERVICE_HOST", Value: "1.2.3.8"}, {Name: "NOT_SPECIAL_SERVICE_PORT", Value: "8088"}, {Name: "NOT_SPECIAL_PORT", Value: "tcp://1.2.3.8:8088"}, {Name: "NOT_SPECIAL_PORT_8088_TCP", Value: "tcp://1.2.3.8:8088"}, {Name: "NOT_SPECIAL_PORT_8088_TCP_PROTO", Value: "tcp"}, {Name: "NOT_SPECIAL_PORT_8088_TCP_PORT", Value: "8088"}, {Name: "NOT_SPECIAL_PORT_8088_TCP_ADDR", Value: "1.2.3.8"}, {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "downward api pod", ns: "downward-api", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "POD_NAME", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "metadata.name", }, }, }, { Name: "POD_NAMESPACE", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "metadata.namespace", }, }, }, { Name: "POD_NODE_NAME", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "spec.nodeName", }, }, }, { Name: "POD_SERVICE_ACCOUNT_NAME", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "spec.serviceAccountName", }, }, }, { Name: "POD_IP", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.podIP", }, }, }, { Name: "POD_IPS", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.podIPs", }, }, }, { Name: "HOST_IP", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.hostIP", }, }, }, { Name: "HOST_IPS", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.hostIPs", }, }, }, }, }, podIPs: []string{"1.2.3.4", "fd00::6"}, nilLister: true, expectedEnvs: []kubecontainer.EnvVar{ {Name: "POD_NAME", Value: "dapi-test-pod-name"}, {Name: "POD_NAMESPACE", Value: "downward-api"}, {Name: "POD_NODE_NAME", Value: "node-name"}, {Name: "POD_SERVICE_ACCOUNT_NAME", Value: "special"}, {Name: "POD_IP", Value: "1.2.3.4"}, {Name: "POD_IPS", Value: "1.2.3.4,fd00::6"}, {Name: "HOST_IP", Value: testKubeletHostIP}, {Name: "HOST_IPS", Value: testKubeletHostIP + "," + testKubeletHostIPv6}, }, }, { name: "downward api pod ips reverse order", ns: "downward-api", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "POD_IP", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.podIP", }, }, }, { Name: "POD_IPS", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.podIPs", }, }, }, { Name: "HOST_IP", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.hostIP", }, }, }, { Name: "HOST_IPS", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.hostIPs", }, }, }, }, }, podIPs: []string{"fd00::6", "1.2.3.4"}, nilLister: true, expectedEnvs: []kubecontainer.EnvVar{ {Name: "POD_IP", Value: "1.2.3.4"}, {Name: "POD_IPS", Value: "1.2.3.4,fd00::6"}, {Name: "HOST_IP", Value: testKubeletHostIP}, {Name: "HOST_IPS", Value: testKubeletHostIP + "," + testKubeletHostIPv6}, }, }, { name: "downward api pod ips multiple ips", ns: "downward-api", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "POD_IP", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.podIP", }, }, }, { Name: "POD_IPS", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.podIPs", }, }, }, { Name: "HOST_IP", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.hostIP", }, }, }, { Name: "HOST_IPS", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "status.hostIPs", }, }, }, }, }, podIPs: []string{"1.2.3.4", "192.168.1.1.", "fd00::6"}, nilLister: true, expectedEnvs: []kubecontainer.EnvVar{ {Name: "POD_IP", Value: "1.2.3.4"}, {Name: "POD_IPS", Value: "1.2.3.4,fd00::6"}, {Name: "HOST_IP", Value: testKubeletHostIP}, {Name: "HOST_IPS", Value: testKubeletHostIP + "," + testKubeletHostIPv6}, }, }, { name: "env expansion", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "POD_NAME", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", //legacyscheme.Registry.GroupOrDie(v1.GroupName).GroupVersion.String(), FieldPath: "metadata.name", }, }, }, { Name: "OUT_OF_ORDER_TEST", Value: "$(OUT_OF_ORDER_TARGET)", }, { Name: "OUT_OF_ORDER_TARGET", Value: "FOO", }, { Name: "EMPTY_VAR", }, { Name: "EMPTY_TEST", Value: "foo-$(EMPTY_VAR)", }, { Name: "POD_NAME_TEST2", Value: "test2-$(POD_NAME)", }, { Name: "POD_NAME_TEST3", Value: "$(POD_NAME_TEST2)-3", }, { Name: "LITERAL_TEST", Value: "literal-$(TEST_LITERAL)", }, { Name: "TEST_UNDEFINED", Value: "$(UNDEFINED_VAR)", }, }, }, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "POD_NAME", Value: "dapi-test-pod-name", }, { Name: "POD_NAME_TEST2", Value: "test2-dapi-test-pod-name", }, { Name: "POD_NAME_TEST3", Value: "test2-dapi-test-pod-name-3", }, { Name: "LITERAL_TEST", Value: "literal-test-test-test", }, { Name: "OUT_OF_ORDER_TEST", Value: "$(OUT_OF_ORDER_TARGET)", }, { Name: "OUT_OF_ORDER_TARGET", Value: "FOO", }, { Name: "TEST_UNDEFINED", Value: "$(UNDEFINED_VAR)", }, { Name: "EMPTY_VAR", }, { Name: "EMPTY_TEST", Value: "foo-", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "env expansion, service env vars", ns: "test1", enableServiceLinks: &trueValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "POD_NAME", ValueFrom: &v1.EnvVarSource{ FieldRef: &v1.ObjectFieldSelector{ APIVersion: "v1", FieldPath: "metadata.name", }, }, }, { Name: "OUT_OF_ORDER_TEST", Value: "$(OUT_OF_ORDER_TARGET)", }, { Name: "OUT_OF_ORDER_TARGET", Value: "FOO", }, { Name: "EMPTY_VAR", }, { Name: "EMPTY_TEST", Value: "foo-$(EMPTY_VAR)", }, { Name: "POD_NAME_TEST2", Value: "test2-$(POD_NAME)", }, { Name: "POD_NAME_TEST3", Value: "$(POD_NAME_TEST2)-3", }, { Name: "LITERAL_TEST", Value: "literal-$(TEST_LITERAL)", }, { Name: "SERVICE_VAR_TEST", Value: "$(TEST_SERVICE_HOST):$(TEST_SERVICE_PORT)", }, { Name: "TEST_UNDEFINED", Value: "$(UNDEFINED_VAR)", }, }, }, nilLister: false, expectedEnvs: []kubecontainer.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "POD_NAME", Value: "dapi-test-pod-name", }, { Name: "POD_NAME_TEST2", Value: "test2-dapi-test-pod-name", }, { Name: "POD_NAME_TEST3", Value: "test2-dapi-test-pod-name-3", }, { Name: "LITERAL_TEST", Value: "literal-test-test-test", }, { Name: "TEST_SERVICE_HOST", Value: "1.2.3.3", }, { Name: "TEST_SERVICE_PORT", Value: "8083", }, { Name: "TEST_PORT", Value: "tcp://1.2.3.3:8083", }, { Name: "TEST_PORT_8083_TCP", Value: "tcp://1.2.3.3:8083", }, { Name: "TEST_PORT_8083_TCP_PROTO", Value: "tcp", }, { Name: "TEST_PORT_8083_TCP_PORT", Value: "8083", }, { Name: "TEST_PORT_8083_TCP_ADDR", Value: "1.2.3.3", }, { Name: "SERVICE_VAR_TEST", Value: "1.2.3.3:8083", }, { Name: "OUT_OF_ORDER_TEST", Value: "$(OUT_OF_ORDER_TARGET)", }, { Name: "OUT_OF_ORDER_TARGET", Value: "FOO", }, { Name: "TEST_UNDEFINED", Value: "$(UNDEFINED_VAR)", }, { Name: "EMPTY_VAR", }, { Name: "EMPTY_TEST", Value: "foo-", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "configmapkeyref_missing_optional", ns: "test", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "POD_NAME", ValueFrom: &v1.EnvVarSource{ ConfigMapKeyRef: &v1.ConfigMapKeySelector{ LocalObjectReference: v1.LocalObjectReference{Name: "missing-config-map"}, Key: "key", Optional: &trueVal, }, }, }, }, }, expectedEnvs: []kubecontainer.EnvVar{ {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "configmapkeyref_missing_key_optional", ns: "test", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "POD_NAME", ValueFrom: &v1.EnvVarSource{ ConfigMapKeyRef: &v1.ConfigMapKeySelector{ LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}, Key: "key", Optional: &trueVal, }, }, }, }, }, nilLister: true, configMap: &v1.ConfigMap{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-configmap", }, Data: map[string]string{ "a": "b", }, }, expectedEnvs: nil, }, { name: "secretkeyref_missing_optional", ns: "test", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "POD_NAME", ValueFrom: &v1.EnvVarSource{ SecretKeyRef: &v1.SecretKeySelector{ LocalObjectReference: v1.LocalObjectReference{Name: "missing-secret"}, Key: "key", Optional: &trueVal, }, }, }, }, }, expectedEnvs: []kubecontainer.EnvVar{ {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "secretkeyref_missing_key_optional", ns: "test", enableServiceLinks: &falseValue, container: &v1.Container{ Env: []v1.EnvVar{ { Name: "POD_NAME", ValueFrom: &v1.EnvVarSource{ SecretKeyRef: &v1.SecretKeySelector{ LocalObjectReference: v1.LocalObjectReference{Name: "test-secret"}, Key: "key", Optional: &trueVal, }, }, }, }, }, nilLister: true, secret: &v1.Secret{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-secret", }, Data: map[string][]byte{ "a": []byte("b"), }, }, expectedEnvs: nil, }, { name: "configmap", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ { ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}}, }, { Prefix: "p_", ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}}, }, }, Env: []v1.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "EXPANSION_TEST", Value: "$(REPLACE_ME)", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, }, }, nilLister: false, configMap: &v1.ConfigMap{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-configmap", }, Data: map[string]string{ "REPLACE_ME": "FROM_CONFIG_MAP", "DUPE_TEST": "CONFIG_MAP", }, }, expectedEnvs: []kubecontainer.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "REPLACE_ME", Value: "FROM_CONFIG_MAP", }, { Name: "EXPANSION_TEST", Value: "FROM_CONFIG_MAP", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, { Name: "p_REPLACE_ME", Value: "FROM_CONFIG_MAP", }, { Name: "p_DUPE_TEST", Value: "CONFIG_MAP", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "configmap allow prefix to start with a digital", ns: "test1", enableServiceLinks: &falseValue, enableRelaxedEnvironmentVariableValidation: true, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ { ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}}, }, { Prefix: "1_", ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}}, }, }, Env: []v1.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "EXPANSION_TEST", Value: "$(REPLACE_ME)", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, }, }, nilLister: false, configMap: &v1.ConfigMap{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-configmap", }, Data: map[string]string{ "REPLACE_ME": "FROM_CONFIG_MAP", "DUPE_TEST": "CONFIG_MAP", }, }, expectedEnvs: []kubecontainer.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "REPLACE_ME", Value: "FROM_CONFIG_MAP", }, { Name: "EXPANSION_TEST", Value: "FROM_CONFIG_MAP", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, { Name: "1_REPLACE_ME", Value: "FROM_CONFIG_MAP", }, { Name: "1_DUPE_TEST", Value: "CONFIG_MAP", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "configmap, service env vars", ns: "test1", enableServiceLinks: &trueValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ { ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}}, }, { Prefix: "p_", ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}}, }, }, Env: []v1.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "EXPANSION_TEST", Value: "$(REPLACE_ME)", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, }, }, nilLister: false, configMap: &v1.ConfigMap{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-configmap", }, Data: map[string]string{ "REPLACE_ME": "FROM_CONFIG_MAP", "DUPE_TEST": "CONFIG_MAP", }, }, expectedEnvs: []kubecontainer.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "TEST_SERVICE_HOST", Value: "1.2.3.3", }, { Name: "TEST_SERVICE_PORT", Value: "8083", }, { Name: "TEST_PORT", Value: "tcp://1.2.3.3:8083", }, { Name: "TEST_PORT_8083_TCP", Value: "tcp://1.2.3.3:8083", }, { Name: "TEST_PORT_8083_TCP_PROTO", Value: "tcp", }, { Name: "TEST_PORT_8083_TCP_PORT", Value: "8083", }, { Name: "TEST_PORT_8083_TCP_ADDR", Value: "1.2.3.3", }, { Name: "REPLACE_ME", Value: "FROM_CONFIG_MAP", }, { Name: "EXPANSION_TEST", Value: "FROM_CONFIG_MAP", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, { Name: "p_REPLACE_ME", Value: "FROM_CONFIG_MAP", }, { Name: "p_DUPE_TEST", Value: "CONFIG_MAP", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "configmap_missing", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ {ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}}}, }, }, expectedError: true, }, { name: "configmap_missing_optional", ns: "test", enableServiceLinks: &falseValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ {ConfigMapRef: &v1.ConfigMapEnvSource{ Optional: &trueVal, LocalObjectReference: v1.LocalObjectReference{Name: "missing-config-map"}}}, }, }, expectedEnvs: []kubecontainer.EnvVar{ {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "configmap_invalid_keys_valid", ns: "test", enableServiceLinks: &falseValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ { Prefix: "p_", ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-config-map"}}, }, }, }, configMap: &v1.ConfigMap{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-configmap", }, Data: map[string]string{ "1234": "abc", }, }, expectedEnvs: []kubecontainer.EnvVar{ { Name: "p_1234", Value: "abc", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "secret", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ { SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-secret"}}, }, { Prefix: "p_", SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-secret"}}, }, }, Env: []v1.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "EXPANSION_TEST", Value: "$(REPLACE_ME)", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, }, }, nilLister: false, secret: &v1.Secret{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-secret", }, Data: map[string][]byte{ "REPLACE_ME": []byte("FROM_SECRET"), "DUPE_TEST": []byte("SECRET"), }, }, expectedEnvs: []kubecontainer.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "REPLACE_ME", Value: "FROM_SECRET", }, { Name: "EXPANSION_TEST", Value: "FROM_SECRET", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, { Name: "p_REPLACE_ME", Value: "FROM_SECRET", }, { Name: "p_DUPE_TEST", Value: "SECRET", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "secret, service env vars", ns: "test1", enableServiceLinks: &trueValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ { SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-secret"}}, }, { Prefix: "p_", SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-secret"}}, }, }, Env: []v1.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "EXPANSION_TEST", Value: "$(REPLACE_ME)", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, }, }, nilLister: false, secret: &v1.Secret{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-secret", }, Data: map[string][]byte{ "REPLACE_ME": []byte("FROM_SECRET"), "DUPE_TEST": []byte("SECRET"), }, }, expectedEnvs: []kubecontainer.EnvVar{ { Name: "TEST_LITERAL", Value: "test-test-test", }, { Name: "TEST_SERVICE_HOST", Value: "1.2.3.3", }, { Name: "TEST_SERVICE_PORT", Value: "8083", }, { Name: "TEST_PORT", Value: "tcp://1.2.3.3:8083", }, { Name: "TEST_PORT_8083_TCP", Value: "tcp://1.2.3.3:8083", }, { Name: "TEST_PORT_8083_TCP_PROTO", Value: "tcp", }, { Name: "TEST_PORT_8083_TCP_PORT", Value: "8083", }, { Name: "TEST_PORT_8083_TCP_ADDR", Value: "1.2.3.3", }, { Name: "REPLACE_ME", Value: "FROM_SECRET", }, { Name: "EXPANSION_TEST", Value: "FROM_SECRET", }, { Name: "DUPE_TEST", Value: "ENV_VAR", }, { Name: "p_REPLACE_ME", Value: "FROM_SECRET", }, { Name: "p_DUPE_TEST", Value: "SECRET", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "secret_missing", ns: "test1", enableServiceLinks: &falseValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ {SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-secret"}}}, }, }, expectedError: true, }, { name: "secret_missing_optional", ns: "test", enableServiceLinks: &falseValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ {SecretRef: &v1.SecretEnvSource{ LocalObjectReference: v1.LocalObjectReference{Name: "missing-secret"}, Optional: &trueVal}}, }, }, expectedEnvs: []kubecontainer.EnvVar{ {Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1"}, {Name: "KUBERNETES_SERVICE_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081"}, {Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp"}, {Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081"}, {Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1"}, }, }, { name: "secret_invalid_keys_valid", ns: "test", enableServiceLinks: &falseValue, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ { Prefix: "p_", SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-secret"}}, }, }, }, secret: &v1.Secret{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-secret", }, Data: map[string][]byte{ "1234.name": []byte("abc"), }, }, expectedEnvs: []kubecontainer.EnvVar{ { Name: "p_1234.name", Value: "abc", }, { Name: "KUBERNETES_SERVICE_HOST", Value: "1.2.3.1", }, { Name: "KUBERNETES_SERVICE_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP", Value: "tcp://1.2.3.1:8081", }, { Name: "KUBERNETES_PORT_8081_TCP_PROTO", Value: "tcp", }, { Name: "KUBERNETES_PORT_8081_TCP_PORT", Value: "8081", }, { Name: "KUBERNETES_PORT_8081_TCP_ADDR", Value: "1.2.3.1", }, }, }, { name: "nil_enableServiceLinks", ns: "test", enableServiceLinks: nil, container: &v1.Container{ EnvFrom: []v1.EnvFromSource{ { Prefix: "p_", SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: "test-secret"}}, }, }, }, secret: &v1.Secret{ ObjectMeta: metav1.ObjectMeta{ Namespace: "test1", Name: "test-secret", }, Data: map[string][]byte{ "1234.name": []byte("abc"), }, }, expectedError: true, }, } for _, tc := range testCases { t.Run(tc.name, func(t *testing.T) { defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.RelaxedEnvironmentVariableValidation, tc.enableRelaxedEnvironmentVariableValidation)() fakeRecorder := record.NewFakeRecorder(1) testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) testKubelet.kubelet.recorder = fakeRecorder defer testKubelet.Cleanup() kl := testKubelet.kubelet if tc.nilLister { kl.serviceLister = nil } else if tc.unsyncedServices { kl.serviceLister = testServiceLister{} kl.serviceHasSynced = func() bool { return false } } else { kl.serviceLister = testServiceLister{services} kl.serviceHasSynced = func() bool { return true } } testKubelet.fakeKubeClient.AddReactor("get", "configmaps", func(action core.Action) (bool, runtime.Object, error) { var err error if tc.configMap == nil { err = apierrors.NewNotFound(action.GetResource().GroupResource(), "configmap-name") } return true, tc.configMap, err }) testKubelet.fakeKubeClient.AddReactor("get", "secrets", func(action core.Action) (bool, runtime.Object, error) { var err error if tc.secret == nil { err = apierrors.NewNotFound(action.GetResource().GroupResource(), "secret-name") } return true, tc.secret, err }) testKubelet.fakeKubeClient.AddReactor("get", "secrets", func(action core.Action) (bool, runtime.Object, error) { var err error if tc.secret == nil { err = errors.New("no secret defined") } return true, tc.secret, err }) testPod := &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ Namespace: tc.ns, Name: "dapi-test-pod-name", Annotations: map[string]string{}, }, Spec: v1.PodSpec{ ServiceAccountName: "special", NodeName: "node-name", EnableServiceLinks: tc.enableServiceLinks, }, } podIP := "" if len(tc.podIPs) > 0 { podIP = tc.podIPs[0] } if tc.staticPod { testPod.Annotations[kubetypes.ConfigSourceAnnotationKey] = "file" } result, err := kl.makeEnvironmentVariables(testPod, tc.container, podIP, tc.podIPs) select { case e := <-fakeRecorder.Events: assert.Equal(t, tc.expectedEvent, e) default: assert.Equal(t, "", tc.expectedEvent) } if tc.expectedError { assert.Error(t, err, tc.name) } else { assert.NoError(t, err, "[%s]", tc.name) sort.Sort(envs(result)) sort.Sort(envs(tc.expectedEnvs)) assert.Equal(t, tc.expectedEnvs, result, "[%s] env entries", tc.name) } }) } } func waitingState(cName string) v1.ContainerStatus { return waitingStateWithReason(cName, "") } func waitingStateWithReason(cName, reason string) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Waiting: &v1.ContainerStateWaiting{Reason: reason}, }, } } func waitingStateWithLastTermination(cName string) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Waiting: &v1.ContainerStateWaiting{}, }, LastTerminationState: v1.ContainerState{ Terminated: &v1.ContainerStateTerminated{ ExitCode: 0, }, }, } } func waitingStateWithNonZeroTermination(cName string) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Waiting: &v1.ContainerStateWaiting{}, }, LastTerminationState: v1.ContainerState{ Terminated: &v1.ContainerStateTerminated{ ExitCode: -1, }, }, } } func runningState(cName string) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Running: &v1.ContainerStateRunning{}, }, } } func startedState(cName string) v1.ContainerStatus { started := true return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Running: &v1.ContainerStateRunning{}, }, Started: &started, } } func runningStateWithStartedAt(cName string, startedAt time.Time) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Running: &v1.ContainerStateRunning{StartedAt: metav1.Time{Time: startedAt}}, }, } } func stoppedState(cName string) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Terminated: &v1.ContainerStateTerminated{}, }, } } func succeededState(cName string) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Terminated: &v1.ContainerStateTerminated{ ExitCode: 0, }, }, } } func failedState(cName string) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Terminated: &v1.ContainerStateTerminated{ ExitCode: -1, }, }, } } func waitingWithLastTerminationUnknown(cName string, restartCount int32) v1.ContainerStatus { return v1.ContainerStatus{ Name: cName, State: v1.ContainerState{ Waiting: &v1.ContainerStateWaiting{Reason: "ContainerCreating"}, }, LastTerminationState: v1.ContainerState{ Terminated: &v1.ContainerStateTerminated{ Reason: "ContainerStatusUnknown", Message: "The container could not be located when the pod was deleted. The container used to be Running", ExitCode: 137, }, }, RestartCount: restartCount, } } func ready(status v1.ContainerStatus) v1.ContainerStatus { status.Ready = true return status } func withID(status v1.ContainerStatus, id string) v1.ContainerStatus { status.ContainerID = id return status } func TestPodPhaseWithRestartAlways(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyAlways, } tests := []struct { pod *v1.Pod podIsTerminal bool status v1.PodPhase test string }{ { &v1.Pod{Spec: desiredState, Status: v1.PodStatus{}}, false, v1.PodPending, "waiting", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, false, v1.PodRunning, "all running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ stoppedState("containerA"), stoppedState("containerB"), }, }, }, false, v1.PodRunning, "all stopped with restart always", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, true, v1.PodSucceeded, "all succeeded with restart always, but the pod is terminal", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), failedState("containerB"), }, }, }, true, v1.PodFailed, "all stopped with restart always, but the pod is terminal", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), stoppedState("containerB"), }, }, }, false, v1.PodRunning, "mixed state #1 with restart always", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), }, }, }, false, v1.PodPending, "mixed state #2 with restart always", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), waitingState("containerB"), }, }, }, false, v1.PodPending, "mixed state #3 with restart always", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), waitingStateWithLastTermination("containerB"), }, }, }, false, v1.PodRunning, "backoff crashloop container with restart always", }, } for _, test := range tests { status := getPhase(test.pod, test.pod.Status.ContainerStatuses, test.podIsTerminal) assert.Equal(t, test.status, status, "[test %s]", test.test) } } func TestPodPhaseWithRestartAlwaysInitContainers(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", InitContainers: []v1.Container{ {Name: "containerX"}, }, Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyAlways, } tests := []struct { pod *v1.Pod status v1.PodPhase test string }{ {&v1.Pod{Spec: desiredState, Status: v1.PodStatus{}}, v1.PodPending, "empty, waiting"}, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ runningState("containerX"), }, }, }, v1.PodPending, "init container running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ failedState("containerX"), }, }, }, v1.PodPending, "init container terminated non-zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithLastTermination("containerX"), }, }, }, v1.PodPending, "init container waiting, terminated zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithNonZeroTermination("containerX"), }, }, }, v1.PodPending, "init container waiting, terminated non-zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingState("containerX"), }, }, }, v1.PodPending, "init container waiting, not terminated", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ succeededState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, v1.PodRunning, "init container succeeded", }, } for _, test := range tests { statusInfo := append(test.pod.Status.InitContainerStatuses[:], test.pod.Status.ContainerStatuses[:]...) status := getPhase(test.pod, statusInfo, false) assert.Equal(t, test.status, status, "[test %s]", test.test) } } func TestPodPhaseWithRestartAlwaysRestartableInitContainers(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", InitContainers: []v1.Container{ {Name: "containerX", RestartPolicy: &containerRestartPolicyAlways}, }, Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyAlways, } tests := []struct { pod *v1.Pod podIsTerminal bool status v1.PodPhase test string }{ {&v1.Pod{Spec: desiredState, Status: v1.PodStatus{}}, false, v1.PodPending, "empty, waiting"}, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ runningState("containerX"), }, }, }, false, v1.PodPending, "restartable init container running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ stoppedState("containerX"), }, }, }, false, v1.PodPending, "restartable init container stopped", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithLastTermination("containerX"), }, }, }, false, v1.PodPending, "restartable init container waiting, terminated zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithNonZeroTermination("containerX"), }, }, }, false, v1.PodPending, "restartable init container waiting, terminated non-zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingState("containerX"), }, }, }, false, v1.PodPending, "restartable init container waiting, not terminated", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ startedState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), }, }, }, false, v1.PodPending, "restartable init container started, 1/2 regular container running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ startedState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, false, v1.PodRunning, "restartable init container started, all regular containers running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ runningState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, false, v1.PodRunning, "restartable init container running, all regular containers running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ stoppedState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, false, v1.PodRunning, "restartable init container stopped, all regular containers running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithLastTermination("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, false, v1.PodRunning, "backoff crashloop restartable init container, all regular containers running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ failedState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, true, v1.PodSucceeded, "all regular containers succeeded and restartable init container failed with restart always, but the pod is terminal", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ succeededState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, true, v1.PodSucceeded, "all regular containers succeeded and restartable init container succeeded with restart always, but the pod is terminal", }, } defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SidecarContainers, true)() for _, test := range tests { statusInfo := append(test.pod.Status.InitContainerStatuses[:], test.pod.Status.ContainerStatuses[:]...) status := getPhase(test.pod, statusInfo, test.podIsTerminal) assert.Equal(t, test.status, status, "[test %s]", test.test) } } func TestPodPhaseWithRestartNever(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyNever, } tests := []struct { pod *v1.Pod status v1.PodPhase test string }{ {&v1.Pod{Spec: desiredState, Status: v1.PodStatus{}}, v1.PodPending, "waiting"}, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, v1.PodRunning, "all running with restart never", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, v1.PodSucceeded, "all succeeded with restart never", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ failedState("containerA"), failedState("containerB"), }, }, }, v1.PodFailed, "all failed with restart never", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), succeededState("containerB"), }, }, }, v1.PodRunning, "mixed state #1 with restart never", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), }, }, }, v1.PodPending, "mixed state #2 with restart never", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), waitingState("containerB"), }, }, }, v1.PodPending, "mixed state #3 with restart never", }, } for _, test := range tests { status := getPhase(test.pod, test.pod.Status.ContainerStatuses, false) assert.Equal(t, test.status, status, "[test %s]", test.test) } } func TestPodPhaseWithRestartNeverInitContainers(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", InitContainers: []v1.Container{ {Name: "containerX"}, }, Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyNever, } tests := []struct { pod *v1.Pod status v1.PodPhase test string }{ {&v1.Pod{Spec: desiredState, Status: v1.PodStatus{}}, v1.PodPending, "empty, waiting"}, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ runningState("containerX"), }, }, }, v1.PodPending, "init container running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ failedState("containerX"), }, }, }, v1.PodFailed, "init container terminated non-zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithLastTermination("containerX"), }, }, }, v1.PodPending, "init container waiting, terminated zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithNonZeroTermination("containerX"), }, }, }, v1.PodFailed, "init container waiting, terminated non-zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingState("containerX"), }, }, }, v1.PodPending, "init container waiting, not terminated", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ succeededState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, v1.PodRunning, "init container succeeded", }, } for _, test := range tests { statusInfo := append(test.pod.Status.InitContainerStatuses[:], test.pod.Status.ContainerStatuses[:]...) status := getPhase(test.pod, statusInfo, false) assert.Equal(t, test.status, status, "[test %s]", test.test) } } func TestPodPhaseWithRestartNeverRestartableInitContainers(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", InitContainers: []v1.Container{ {Name: "containerX", RestartPolicy: &containerRestartPolicyAlways}, }, Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyNever, } tests := []struct { pod *v1.Pod status v1.PodPhase test string }{ {&v1.Pod{Spec: desiredState, Status: v1.PodStatus{}}, v1.PodPending, "empty, waiting"}, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ runningState("containerX"), }, }, }, v1.PodPending, "restartable init container running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ stoppedState("containerX"), }, }, }, v1.PodPending, "restartable init container stopped", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithLastTermination("containerX"), }, }, }, v1.PodPending, "restartable init container waiting, terminated zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithNonZeroTermination("containerX"), }, }, }, v1.PodPending, "restartable init container waiting, terminated non-zero", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingState("containerX"), }, }, }, v1.PodPending, "restartable init container waiting, not terminated", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ startedState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), }, }, }, v1.PodPending, "restartable init container started, one main container running", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ startedState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, v1.PodRunning, "restartable init container started, main containers succeeded", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ runningState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, v1.PodRunning, "restartable init container running, main containers succeeded", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ succeededState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, v1.PodSucceeded, "all containers succeeded", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ failedState("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, v1.PodSucceeded, "restartable init container terminated non-zero, main containers succeeded", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithLastTermination("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, v1.PodSucceeded, "backoff crashloop restartable init container, main containers succeeded", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ InitContainerStatuses: []v1.ContainerStatus{ waitingStateWithNonZeroTermination("containerX"), }, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, v1.PodSucceeded, "backoff crashloop with non-zero restartable init container, main containers succeeded", }, } defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SidecarContainers, true)() for _, test := range tests { statusInfo := append(test.pod.Status.InitContainerStatuses[:], test.pod.Status.ContainerStatuses[:]...) status := getPhase(test.pod, statusInfo, false) assert.Equal(t, test.status, status, "[test %s]", test.test) } } func TestPodPhaseWithRestartOnFailure(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyOnFailure, } tests := []struct { pod *v1.Pod status v1.PodPhase test string }{ {&v1.Pod{Spec: desiredState, Status: v1.PodStatus{}}, v1.PodPending, "waiting"}, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, v1.PodRunning, "all running with restart onfailure", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, }, }, v1.PodSucceeded, "all succeeded with restart onfailure", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ failedState("containerA"), failedState("containerB"), }, }, }, v1.PodRunning, "all failed with restart never", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), succeededState("containerB"), }, }, }, v1.PodRunning, "mixed state #1 with restart onfailure", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), }, }, }, v1.PodPending, "mixed state #2 with restart onfailure", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), waitingState("containerB"), }, }, }, v1.PodPending, "mixed state #3 with restart onfailure", }, { &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), waitingStateWithLastTermination("containerB"), }, }, }, v1.PodRunning, "backoff crashloop container with restart onfailure", }, } for _, test := range tests { status := getPhase(test.pod, test.pod.Status.ContainerStatuses, false) assert.Equal(t, test.status, status, "[test %s]", test.test) } } // No special init-specific logic for this, see RestartAlways case // func TestPodPhaseWithRestartOnFailureInitContainers(t *testing.T) { // } func TestConvertToAPIContainerStatuses(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyAlways, } now := metav1.Now() tests := []struct { name string pod *v1.Pod currentStatus *kubecontainer.PodStatus previousStatus []v1.ContainerStatus containers []v1.Container hasInitContainers bool isInitContainer bool expected []v1.ContainerStatus }{ { name: "no current status, with previous statuses and deletion", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, ObjectMeta: metav1.ObjectMeta{Name: "my-pod", DeletionTimestamp: &now}, }, currentStatus: &kubecontainer.PodStatus{}, previousStatus: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, containers: desiredState.Containers, // no init containers // is not an init container expected: []v1.ContainerStatus{ waitingWithLastTerminationUnknown("containerA", 0), waitingWithLastTerminationUnknown("containerB", 0), }, }, { name: "no current status, with previous statuses and no deletion", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, currentStatus: &kubecontainer.PodStatus{}, previousStatus: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, containers: desiredState.Containers, // no init containers // is not an init container expected: []v1.ContainerStatus{ waitingWithLastTerminationUnknown("containerA", 1), waitingWithLastTerminationUnknown("containerB", 1), }, }, } for _, test := range tests { t.Run(test.name, func(t *testing.T) { testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kl := testKubelet.kubelet containerStatuses := kl.convertToAPIContainerStatuses( test.pod, test.currentStatus, test.previousStatus, test.containers, test.hasInitContainers, test.isInitContainer, ) for i, status := range containerStatuses { assert.Equal(t, test.expected[i], status, "[test %s]", test.name) } }) } } func Test_generateAPIPodStatus(t *testing.T) { desiredState := v1.PodSpec{ NodeName: "machine", Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyAlways, } sandboxReadyStatus := &kubecontainer.PodStatus{ SandboxStatuses: []*runtimeapi.PodSandboxStatus{ { Network: &runtimeapi.PodSandboxNetworkStatus{ Ip: "10.0.0.10", }, Metadata: &runtimeapi.PodSandboxMetadata{Attempt: uint32(0)}, State: runtimeapi.PodSandboxState_SANDBOX_READY, }, }, } now := metav1.Now() normalized_now := now.Rfc3339Copy() tests := []struct { name string pod *v1.Pod currentStatus *kubecontainer.PodStatus unreadyContainer []string previousStatus v1.PodStatus isPodTerminal bool enablePodDisruptionConditions bool expected v1.PodStatus expectedPodDisruptionCondition v1.PodCondition expectedPodReadyToStartContainersCondition v1.PodCondition }{ { name: "pod disruption condition is copied over and the phase is set to failed when deleted; PodDisruptionConditions enabled", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, Conditions: []v1.PodCondition{{ Type: v1.DisruptionTarget, Status: v1.ConditionTrue, LastTransitionTime: normalized_now, }}, }, ObjectMeta: metav1.ObjectMeta{Name: "my-pod", DeletionTimestamp: &now}, }, currentStatus: sandboxReadyStatus, previousStatus: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, Conditions: []v1.PodCondition{{ Type: v1.DisruptionTarget, Status: v1.ConditionTrue, LastTransitionTime: normalized_now, }}, }, isPodTerminal: true, enablePodDisruptionConditions: true, expected: v1.PodStatus{ Phase: v1.PodFailed, HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue}, {Type: v1.PodReady, Status: v1.ConditionFalse, Reason: "PodFailed"}, {Type: v1.ContainersReady, Status: v1.ConditionFalse, Reason: "PodFailed"}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(waitingWithLastTerminationUnknown("containerA", 0)), ready(waitingWithLastTerminationUnknown("containerB", 0)), }, }, expectedPodDisruptionCondition: v1.PodCondition{ Type: v1.DisruptionTarget, Status: v1.ConditionTrue, LastTransitionTime: normalized_now, }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionTrue, }, }, { name: "current status ready, with previous statuses and deletion", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, ObjectMeta: metav1.ObjectMeta{Name: "my-pod", DeletionTimestamp: &now}, }, currentStatus: sandboxReadyStatus, previousStatus: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, expected: v1.PodStatus{ Phase: v1.PodRunning, HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue}, {Type: v1.PodReady, Status: v1.ConditionTrue}, {Type: v1.ContainersReady, Status: v1.ConditionTrue}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(waitingWithLastTerminationUnknown("containerA", 0)), ready(waitingWithLastTerminationUnknown("containerB", 0)), }, }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionTrue, }, }, { name: "current status ready, with previous statuses and no deletion", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, currentStatus: sandboxReadyStatus, previousStatus: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, expected: v1.PodStatus{ Phase: v1.PodRunning, HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue}, {Type: v1.PodReady, Status: v1.ConditionTrue}, {Type: v1.ContainersReady, Status: v1.ConditionTrue}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(waitingWithLastTerminationUnknown("containerA", 1)), ready(waitingWithLastTerminationUnknown("containerB", 1)), }, }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionTrue, }, }, { name: "terminal phase cannot be changed (apiserver previous is succeeded)", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ Phase: v1.PodSucceeded, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, currentStatus: &kubecontainer.PodStatus{}, previousStatus: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, expected: v1.PodStatus{ Phase: v1.PodSucceeded, HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue, Reason: "PodCompleted"}, {Type: v1.PodReady, Status: v1.ConditionFalse, Reason: "PodCompleted"}, {Type: v1.ContainersReady, Status: v1.ConditionFalse, Reason: "PodCompleted"}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(waitingWithLastTerminationUnknown("containerA", 1)), ready(waitingWithLastTerminationUnknown("containerB", 1)), }, }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionFalse, }, }, { name: "terminal phase from previous status must remain terminal, restartAlways", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ Phase: v1.PodRunning, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, currentStatus: &kubecontainer.PodStatus{}, previousStatus: v1.PodStatus{ Phase: v1.PodSucceeded, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, // Reason and message should be preserved Reason: "Test", Message: "test", }, expected: v1.PodStatus{ Phase: v1.PodSucceeded, HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue, Reason: "PodCompleted"}, {Type: v1.PodReady, Status: v1.ConditionFalse, Reason: "PodCompleted"}, {Type: v1.ContainersReady, Status: v1.ConditionFalse, Reason: "PodCompleted"}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(waitingWithLastTerminationUnknown("containerA", 1)), ready(waitingWithLastTerminationUnknown("containerB", 1)), }, Reason: "Test", Message: "test", }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionFalse, }, }, { name: "terminal phase from previous status must remain terminal, restartNever", pod: &v1.Pod{ Spec: v1.PodSpec{ NodeName: "machine", Containers: []v1.Container{ {Name: "containerA"}, {Name: "containerB"}, }, RestartPolicy: v1.RestartPolicyNever, }, Status: v1.PodStatus{ Phase: v1.PodRunning, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, currentStatus: &kubecontainer.PodStatus{}, previousStatus: v1.PodStatus{ Phase: v1.PodSucceeded, ContainerStatuses: []v1.ContainerStatus{ succeededState("containerA"), succeededState("containerB"), }, // Reason and message should be preserved Reason: "Test", Message: "test", }, expected: v1.PodStatus{ Phase: v1.PodSucceeded, HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue, Reason: "PodCompleted"}, {Type: v1.PodReady, Status: v1.ConditionFalse, Reason: "PodCompleted"}, {Type: v1.ContainersReady, Status: v1.ConditionFalse, Reason: "PodCompleted"}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(succeededState("containerA")), ready(succeededState("containerB")), }, Reason: "Test", Message: "test", }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionFalse, }, }, { name: "running can revert to pending", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ Phase: v1.PodRunning, ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, }, currentStatus: sandboxReadyStatus, previousStatus: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ waitingState("containerA"), waitingState("containerB"), }, }, expected: v1.PodStatus{ Phase: v1.PodPending, HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue}, {Type: v1.PodReady, Status: v1.ConditionTrue}, {Type: v1.ContainersReady, Status: v1.ConditionTrue}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(waitingStateWithReason("containerA", "ContainerCreating")), ready(waitingStateWithReason("containerB", "ContainerCreating")), }, }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionTrue, }, }, { name: "reason and message are preserved when phase doesn't change", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ Phase: v1.PodRunning, ContainerStatuses: []v1.ContainerStatus{ waitingState("containerA"), waitingState("containerB"), }, }, }, currentStatus: &kubecontainer.PodStatus{ SandboxStatuses: sandboxReadyStatus.SandboxStatuses, ContainerStatuses: []*kubecontainer.Status{ { ID: kubecontainer.ContainerID{ID: "foo"}, Name: "containerB", StartedAt: time.Unix(1, 0).UTC(), State: kubecontainer.ContainerStateRunning, }, }, }, previousStatus: v1.PodStatus{ Phase: v1.PodPending, Reason: "Test", Message: "test", ContainerStatuses: []v1.ContainerStatus{ waitingState("containerA"), runningState("containerB"), }, }, expected: v1.PodStatus{ Phase: v1.PodPending, Reason: "Test", Message: "test", HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue}, {Type: v1.PodReady, Status: v1.ConditionTrue}, {Type: v1.ContainersReady, Status: v1.ConditionTrue}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(waitingStateWithReason("containerA", "ContainerCreating")), ready(withID(runningStateWithStartedAt("containerB", time.Unix(1, 0).UTC()), "://foo")), }, }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionTrue, }, }, { name: "reason and message are cleared when phase changes", pod: &v1.Pod{ Spec: desiredState, Status: v1.PodStatus{ Phase: v1.PodPending, ContainerStatuses: []v1.ContainerStatus{ waitingState("containerA"), waitingState("containerB"), }, }, }, currentStatus: &kubecontainer.PodStatus{ SandboxStatuses: sandboxReadyStatus.SandboxStatuses, ContainerStatuses: []*kubecontainer.Status{ { ID: kubecontainer.ContainerID{ID: "c1"}, Name: "containerA", StartedAt: time.Unix(1, 0).UTC(), State: kubecontainer.ContainerStateRunning, }, { ID: kubecontainer.ContainerID{ID: "c2"}, Name: "containerB", StartedAt: time.Unix(2, 0).UTC(), State: kubecontainer.ContainerStateRunning, }, }, }, previousStatus: v1.PodStatus{ Phase: v1.PodPending, Reason: "Test", Message: "test", ContainerStatuses: []v1.ContainerStatus{ runningState("containerA"), runningState("containerB"), }, }, expected: v1.PodStatus{ Phase: v1.PodRunning, HostIP: "127.0.0.1", HostIPs: []v1.HostIP{{IP: "127.0.0.1"}, {IP: "::1"}}, QOSClass: v1.PodQOSBestEffort, Conditions: []v1.PodCondition{ {Type: v1.PodInitialized, Status: v1.ConditionTrue}, {Type: v1.PodReady, Status: v1.ConditionTrue}, {Type: v1.ContainersReady, Status: v1.ConditionTrue}, {Type: v1.PodScheduled, Status: v1.ConditionTrue}, }, ContainerStatuses: []v1.ContainerStatus{ ready(withID(runningStateWithStartedAt("containerA", time.Unix(1, 0).UTC()), "://c1")), ready(withID(runningStateWithStartedAt("containerB", time.Unix(2, 0).UTC()), "://c2")), }, }, expectedPodReadyToStartContainersCondition: v1.PodCondition{ Type: v1.PodReadyToStartContainers, Status: v1.ConditionTrue, }, }, } for _, test := range tests { for _, enablePodReadyToStartContainersCondition := range []bool{false, true} { t.Run(test.name, func(t *testing.T) { defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.PodDisruptionConditions, test.enablePodDisruptionConditions)() defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.PodReadyToStartContainersCondition, enablePodReadyToStartContainersCondition)() testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kl := testKubelet.kubelet kl.statusManager.SetPodStatus(test.pod, test.previousStatus) for _, name := range test.unreadyContainer { kl.readinessManager.Set(kubecontainer.BuildContainerID("", findContainerStatusByName(test.expected, name).ContainerID), results.Failure, test.pod) } expected := test.expected.DeepCopy() actual := kl.generateAPIPodStatus(test.pod, test.currentStatus, test.isPodTerminal) if enablePodReadyToStartContainersCondition { expected.Conditions = append([]v1.PodCondition{test.expectedPodReadyToStartContainersCondition}, expected.Conditions...) } if test.enablePodDisruptionConditions { expected.Conditions = append([]v1.PodCondition{test.expectedPodDisruptionCondition}, expected.Conditions...) } if !apiequality.Semantic.DeepEqual(*expected, actual) { t.Fatalf("Unexpected status: %s", cmp.Diff(*expected, actual)) } }) } } } func Test_generateAPIPodStatusForInPlaceVPAEnabled(t *testing.T) { defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.InPlacePodVerticalScaling, true)() testContainerName := "ctr0" testContainerID := kubecontainer.ContainerID{Type: "test", ID: testContainerName} CPU1AndMem1G := v1.ResourceList{v1.ResourceCPU: resource.MustParse("1"), v1.ResourceMemory: resource.MustParse("1Gi")} CPU1AndMem1GAndStorage2G := CPU1AndMem1G.DeepCopy() CPU1AndMem1GAndStorage2G[v1.ResourceEphemeralStorage] = resource.MustParse("2Gi") CPU1AndMem1GAndStorage2GAndCustomResource := CPU1AndMem1GAndStorage2G.DeepCopy() CPU1AndMem1GAndStorage2GAndCustomResource["unknown-resource"] = resource.MustParse("1") testKubecontainerPodStatus := kubecontainer.PodStatus{ ContainerStatuses: []*kubecontainer.Status{ { ID: testContainerID, Name: testContainerName, Resources: &kubecontainer.ContainerResources{ CPURequest: CPU1AndMem1G.Cpu(), MemoryRequest: CPU1AndMem1G.Memory(), CPULimit: CPU1AndMem1G.Cpu(), MemoryLimit: CPU1AndMem1G.Memory(), }, }, }, } tests := []struct { name string pod *v1.Pod oldStatus *v1.PodStatus }{ { name: "custom resource in ResourcesAllocated, resize should be null", pod: &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ UID: "1234560", Name: "foo0", Namespace: "bar0", }, Spec: v1.PodSpec{ NodeName: "machine", Containers: []v1.Container{ { Name: testContainerName, Image: "img", Resources: v1.ResourceRequirements{Limits: CPU1AndMem1GAndStorage2GAndCustomResource, Requests: CPU1AndMem1GAndStorage2GAndCustomResource}, }, }, RestartPolicy: v1.RestartPolicyAlways, }, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ { Name: testContainerName, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}, AllocatedResources: CPU1AndMem1GAndStorage2GAndCustomResource, }, }, Resize: "InProgress", }, }, }, { name: "cpu/memory resource in ResourcesAllocated, resize should be null", pod: &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ UID: "1234560", Name: "foo0", Namespace: "bar0", }, Spec: v1.PodSpec{ NodeName: "machine", Containers: []v1.Container{ { Name: testContainerName, Image: "img", Resources: v1.ResourceRequirements{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}, }, }, RestartPolicy: v1.RestartPolicyAlways, }, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{ { Name: testContainerName, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}, AllocatedResources: CPU1AndMem1GAndStorage2G, }, }, Resize: "InProgress", }, }, }, } for _, test := range tests { t.Run(test.name, func(t *testing.T) { testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kl := testKubelet.kubelet oldStatus := test.pod.Status kl.statusManager = status.NewFakeManager() kl.statusManager.SetPodStatus(test.pod, oldStatus) actual := kl.generateAPIPodStatus(test.pod, &testKubecontainerPodStatus /* criStatus */, false /* test.isPodTerminal */) if actual.Resize != "" { t.Fatalf("Unexpected Resize status: %s", actual.Resize) } }) } } func findContainerStatusByName(status v1.PodStatus, name string) *v1.ContainerStatus { for i, c := range status.InitContainerStatuses { if c.Name == name { return &status.InitContainerStatuses[i] } } for i, c := range status.ContainerStatuses { if c.Name == name { return &status.ContainerStatuses[i] } } for i, c := range status.EphemeralContainerStatuses { if c.Name == name { return &status.EphemeralContainerStatuses[i] } } return nil } func TestGetExec(t *testing.T) { const ( podName = "podFoo" podNamespace = "nsFoo" podUID types.UID = "12345678" containerID = "containerFoo" tty = true ) var ( podFullName = kubecontainer.GetPodFullName(podWithUIDNameNs(podUID, podName, podNamespace)) ) testcases := []struct { description string podFullName string container string command []string expectError bool }{{ description: "success case", podFullName: podFullName, container: containerID, command: []string{"ls"}, expectError: false, }, { description: "no such pod", podFullName: "bar" + podFullName, container: containerID, command: []string{"ls"}, expectError: true, }, { description: "no such container", podFullName: podFullName, container: "containerBar", command: []string{"ls"}, expectError: true, }, { description: "null exec command", podFullName: podFullName, container: containerID, expectError: false, }, { description: "multi exec commands", podFullName: podFullName, container: containerID, command: []string{"bash", "-c", "ls"}, expectError: false, }} for _, tc := range testcases { t.Run(tc.description, func(t *testing.T) { ctx := context.Background() testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kubelet := testKubelet.kubelet testKubelet.fakeRuntime.PodList = []*containertest.FakePod{ {Pod: &kubecontainer.Pod{ ID: podUID, Name: podName, Namespace: podNamespace, Containers: []*kubecontainer.Container{ {Name: containerID, ID: kubecontainer.ContainerID{Type: "test", ID: containerID}, }, }, }}, } description := "streaming - " + tc.description fakeRuntime := &containertest.FakeStreamingRuntime{FakeRuntime: testKubelet.fakeRuntime} kubelet.containerRuntime = fakeRuntime kubelet.streamingRuntime = fakeRuntime redirect, err := kubelet.GetExec(ctx, tc.podFullName, podUID, tc.container, tc.command, remotecommand.Options{}) if tc.expectError { assert.Error(t, err, description) } else { assert.NoError(t, err, description) assert.Equal(t, containertest.FakeHost, redirect.Host, description+": redirect") } }) } } func TestGetPortForward(t *testing.T) { const ( podName = "podFoo" podNamespace = "nsFoo" podUID types.UID = "12345678" port int32 = 5000 ) testcases := []struct { description string podName string expectError bool }{{ description: "success case", podName: podName, }, { description: "no such pod", podName: "bar", expectError: true, }} for _, tc := range testcases { ctx := context.Background() testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kubelet := testKubelet.kubelet testKubelet.fakeRuntime.PodList = []*containertest.FakePod{ {Pod: &kubecontainer.Pod{ ID: podUID, Name: podName, Namespace: podNamespace, Containers: []*kubecontainer.Container{ {Name: "foo", ID: kubecontainer.ContainerID{Type: "test", ID: "foo"}, }, }, }}, } description := "streaming - " + tc.description fakeRuntime := &containertest.FakeStreamingRuntime{FakeRuntime: testKubelet.fakeRuntime} kubelet.containerRuntime = fakeRuntime kubelet.streamingRuntime = fakeRuntime redirect, err := kubelet.GetPortForward(ctx, tc.podName, podNamespace, podUID, portforward.V4Options{}) if tc.expectError { assert.Error(t, err, description) } else { assert.NoError(t, err, description) assert.Equal(t, containertest.FakeHost, redirect.Host, description+": redirect") } } } func TestTruncatePodHostname(t *testing.T) { for c, test := range map[string]struct { input string output string }{ "valid hostname": { input: "test.pod.hostname", output: "test.pod.hostname", }, "too long hostname": { input: "1234567.1234567.1234567.1234567.1234567.1234567.1234567.1234567.1234567.", // 8*9=72 chars output: "1234567.1234567.1234567.1234567.1234567.1234567.1234567.1234567", //8*8-1=63 chars }, "hostname end with .": { input: "1234567.1234567.1234567.1234567.1234567.1234567.1234567.123456.1234567.", // 8*9-1=71 chars output: "1234567.1234567.1234567.1234567.1234567.1234567.1234567.123456", //8*8-2=62 chars }, "hostname end with -": { input: "1234567.1234567.1234567.1234567.1234567.1234567.1234567.123456-1234567.", // 8*9-1=71 chars output: "1234567.1234567.1234567.1234567.1234567.1234567.1234567.123456", //8*8-2=62 chars }, } { t.Logf("TestCase: %q", c) output, err := truncatePodHostnameIfNeeded("test-pod", test.input) assert.NoError(t, err) assert.Equal(t, test.output, output) } } func TestGenerateAPIPodStatusHostNetworkPodIPs(t *testing.T) { testcases := []struct { name string nodeAddresses []v1.NodeAddress criPodIPs []string podIPs []v1.PodIP }{ { name: "Simple", nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, }, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, }, }, { name: "InternalIP is preferred over ExternalIP", nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeExternalIP, Address: "192.168.0.1"}, {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, }, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, }, }, { name: "Single-stack addresses in dual-stack cluster", nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, }, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, }, }, { name: "Multiple single-stack addresses in dual-stack cluster", nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, {Type: v1.NodeInternalIP, Address: "10.0.0.2"}, {Type: v1.NodeExternalIP, Address: "192.168.0.1"}, }, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, }, }, { name: "Dual-stack addresses in dual-stack cluster", nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, {Type: v1.NodeInternalIP, Address: "fd01::1234"}, }, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "fd01::1234"}, }, }, { name: "CRI PodIPs override NodeAddresses", nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, {Type: v1.NodeInternalIP, Address: "fd01::1234"}, }, criPodIPs: []string{"192.168.0.1"}, podIPs: []v1.PodIP{ {IP: "192.168.0.1"}, {IP: "fd01::1234"}, }, }, { name: "CRI dual-stack PodIPs override NodeAddresses", nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, {Type: v1.NodeInternalIP, Address: "fd01::1234"}, }, criPodIPs: []string{"192.168.0.1", "2001:db8::2"}, podIPs: []v1.PodIP{ {IP: "192.168.0.1"}, {IP: "2001:db8::2"}, }, }, { // by default the cluster prefers IPv4 name: "CRI dual-stack PodIPs override NodeAddresses prefer IPv4", nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, {Type: v1.NodeInternalIP, Address: "fd01::1234"}, }, criPodIPs: []string{"2001:db8::2", "192.168.0.1"}, podIPs: []v1.PodIP{ {IP: "192.168.0.1"}, {IP: "2001:db8::2"}, }, }, } for _, tc := range testcases { t.Run(tc.name, func(t *testing.T) { testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kl := testKubelet.kubelet kl.nodeLister = testNodeLister{nodes: []*v1.Node{ { ObjectMeta: metav1.ObjectMeta{Name: string(kl.nodeName)}, Status: v1.NodeStatus{ Addresses: tc.nodeAddresses, }, }, }} pod := podWithUIDNameNs("12345", "test-pod", "test-namespace") pod.Spec.HostNetwork = true criStatus := &kubecontainer.PodStatus{ ID: pod.UID, Name: pod.Name, Namespace: pod.Namespace, IPs: tc.criPodIPs, } status := kl.generateAPIPodStatus(pod, criStatus, false) if !reflect.DeepEqual(status.PodIPs, tc.podIPs) { t.Fatalf("Expected PodIPs %#v, got %#v", tc.podIPs, status.PodIPs) } if tc.criPodIPs == nil && status.HostIP != status.PodIPs[0].IP { t.Fatalf("Expected HostIP %q to equal PodIPs[0].IP %q", status.HostIP, status.PodIPs[0].IP) } }) } } func TestNodeAddressUpdatesGenerateAPIPodStatusHostNetworkPodIPs(t *testing.T) { testcases := []struct { name string nodeIPs []string nodeAddresses []v1.NodeAddress expectedPodIPs []v1.PodIP }{ { name: "Immutable after update node addresses single-stack", nodeIPs: []string{"10.0.0.1"}, nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "1.1.1.1"}, }, expectedPodIPs: []v1.PodIP{ {IP: "10.0.0.1"}, }, }, { name: "Immutable after update node addresses dual-stack - primary address", nodeIPs: []string{"10.0.0.1", "2001:db8::2"}, nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "1.1.1.1"}, {Type: v1.NodeInternalIP, Address: "2001:db8::2"}, }, expectedPodIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "2001:db8::2"}, }, }, { name: "Immutable after update node addresses dual-stack - secondary address", nodeIPs: []string{"10.0.0.1", "2001:db8::2"}, nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, {Type: v1.NodeInternalIP, Address: "2001:db8:1:2:3::2"}, }, expectedPodIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "2001:db8::2"}, }, }, { name: "Immutable after update node addresses dual-stack - primary and secondary address", nodeIPs: []string{"10.0.0.1", "2001:db8::2"}, nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "1.1.1.1"}, {Type: v1.NodeInternalIP, Address: "2001:db8:1:2:3::2"}, }, expectedPodIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "2001:db8::2"}, }, }, { name: "Update secondary after new secondary address dual-stack", nodeIPs: []string{"10.0.0.1"}, nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, {Type: v1.NodeInternalIP, Address: "2001:db8::2"}, }, expectedPodIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "2001:db8::2"}, }, }, { name: "Update secondary after new secondary address dual-stack - reverse order", nodeIPs: []string{"2001:db8::2"}, nodeAddresses: []v1.NodeAddress{ {Type: v1.NodeInternalIP, Address: "10.0.0.1"}, {Type: v1.NodeInternalIP, Address: "2001:db8::2"}, }, expectedPodIPs: []v1.PodIP{ {IP: "2001:db8::2"}, }, }, } for _, tc := range testcases { t.Run(tc.name, func(t *testing.T) { testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kl := testKubelet.kubelet for _, ip := range tc.nodeIPs { kl.nodeIPs = append(kl.nodeIPs, netutils.ParseIPSloppy(ip)) } kl.nodeLister = testNodeLister{nodes: []*v1.Node{ { ObjectMeta: metav1.ObjectMeta{Name: string(kl.nodeName)}, Status: v1.NodeStatus{ Addresses: tc.nodeAddresses, }, }, }} pod := podWithUIDNameNs("12345", "test-pod", "test-namespace") pod.Spec.HostNetwork = true for _, ip := range tc.nodeIPs { pod.Status.PodIPs = append(pod.Status.PodIPs, v1.PodIP{IP: ip}) } if len(pod.Status.PodIPs) > 0 { pod.Status.PodIP = pod.Status.PodIPs[0].IP } // set old status podStatus := &kubecontainer.PodStatus{ ID: pod.UID, Name: pod.Name, Namespace: pod.Namespace, } podStatus.IPs = tc.nodeIPs status := kl.generateAPIPodStatus(pod, podStatus, false) if !reflect.DeepEqual(status.PodIPs, tc.expectedPodIPs) { t.Fatalf("Expected PodIPs %#v, got %#v", tc.expectedPodIPs, status.PodIPs) } if kl.nodeIPs[0].String() != status.PodIPs[0].IP { t.Fatalf("Expected HostIP %q to equal PodIPs[0].IP %q", status.HostIP, status.PodIPs[0].IP) } }) } } func TestGenerateAPIPodStatusPodIPs(t *testing.T) { testcases := []struct { name string nodeIP string criPodIPs []string podIPs []v1.PodIP }{ { name: "Simple", nodeIP: "", criPodIPs: []string{"10.0.0.1"}, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, }, }, { name: "Dual-stack", nodeIP: "", criPodIPs: []string{"10.0.0.1", "fd01::1234"}, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "fd01::1234"}, }, }, { name: "Dual-stack with explicit node IP", nodeIP: "192.168.1.1", criPodIPs: []string{"10.0.0.1", "fd01::1234"}, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "fd01::1234"}, }, }, { name: "Dual-stack with CRI returning wrong family first", nodeIP: "", criPodIPs: []string{"fd01::1234", "10.0.0.1"}, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "fd01::1234"}, }, }, { name: "Dual-stack with explicit node IP with CRI returning wrong family first", nodeIP: "192.168.1.1", criPodIPs: []string{"fd01::1234", "10.0.0.1"}, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "fd01::1234"}, }, }, { name: "Dual-stack with IPv6 node IP", nodeIP: "fd00::5678", criPodIPs: []string{"10.0.0.1", "fd01::1234"}, podIPs: []v1.PodIP{ {IP: "fd01::1234"}, {IP: "10.0.0.1"}, }, }, { name: "Dual-stack with IPv6 node IP, other CRI order", nodeIP: "fd00::5678", criPodIPs: []string{"fd01::1234", "10.0.0.1"}, podIPs: []v1.PodIP{ {IP: "fd01::1234"}, {IP: "10.0.0.1"}, }, }, { name: "No Pod IP matching Node IP", nodeIP: "fd00::5678", criPodIPs: []string{"10.0.0.1"}, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, }, }, { name: "No Pod IP matching (unspecified) Node IP", nodeIP: "", criPodIPs: []string{"fd01::1234"}, podIPs: []v1.PodIP{ {IP: "fd01::1234"}, }, }, { name: "Multiple IPv4 IPs", nodeIP: "", criPodIPs: []string{"10.0.0.1", "10.0.0.2", "10.0.0.3"}, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, }, }, { name: "Multiple Dual-Stack IPs", nodeIP: "", criPodIPs: []string{"10.0.0.1", "10.0.0.2", "fd01::1234", "10.0.0.3", "fd01::5678"}, podIPs: []v1.PodIP{ {IP: "10.0.0.1"}, {IP: "fd01::1234"}, }, }, } for _, tc := range testcases { t.Run(tc.name, func(t *testing.T) { testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kl := testKubelet.kubelet if tc.nodeIP != "" { kl.nodeIPs = []net.IP{netutils.ParseIPSloppy(tc.nodeIP)} } pod := podWithUIDNameNs("12345", "test-pod", "test-namespace") criStatus := &kubecontainer.PodStatus{ ID: pod.UID, Name: pod.Name, Namespace: pod.Namespace, IPs: tc.criPodIPs, } status := kl.generateAPIPodStatus(pod, criStatus, false) if !reflect.DeepEqual(status.PodIPs, tc.podIPs) { t.Fatalf("Expected PodIPs %#v, got %#v", tc.podIPs, status.PodIPs) } if status.PodIP != status.PodIPs[0].IP { t.Fatalf("Expected PodIP %q to equal PodIPs[0].IP %q", status.PodIP, status.PodIPs[0].IP) } }) } } func TestSortPodIPs(t *testing.T) { testcases := []struct { name string nodeIP string podIPs []string expectedIPs []string }{ { name: "Simple", nodeIP: "", podIPs: []string{"10.0.0.1"}, expectedIPs: []string{"10.0.0.1"}, }, { name: "Dual-stack", nodeIP: "", podIPs: []string{"10.0.0.1", "fd01::1234"}, expectedIPs: []string{"10.0.0.1", "fd01::1234"}, }, { name: "Dual-stack with explicit node IP", nodeIP: "192.168.1.1", podIPs: []string{"10.0.0.1", "fd01::1234"}, expectedIPs: []string{"10.0.0.1", "fd01::1234"}, }, { name: "Dual-stack with CRI returning wrong family first", nodeIP: "", podIPs: []string{"fd01::1234", "10.0.0.1"}, expectedIPs: []string{"10.0.0.1", "fd01::1234"}, }, { name: "Dual-stack with explicit node IP with CRI returning wrong family first", nodeIP: "192.168.1.1", podIPs: []string{"fd01::1234", "10.0.0.1"}, expectedIPs: []string{"10.0.0.1", "fd01::1234"}, }, { name: "Dual-stack with IPv6 node IP", nodeIP: "fd00::5678", podIPs: []string{"10.0.0.1", "fd01::1234"}, expectedIPs: []string{"fd01::1234", "10.0.0.1"}, }, { name: "Dual-stack with IPv6 node IP, other CRI order", nodeIP: "fd00::5678", podIPs: []string{"fd01::1234", "10.0.0.1"}, expectedIPs: []string{"fd01::1234", "10.0.0.1"}, }, { name: "No Pod IP matching Node IP", nodeIP: "fd00::5678", podIPs: []string{"10.0.0.1"}, expectedIPs: []string{"10.0.0.1"}, }, { name: "No Pod IP matching (unspecified) Node IP", nodeIP: "", podIPs: []string{"fd01::1234"}, expectedIPs: []string{"fd01::1234"}, }, { name: "Multiple IPv4 IPs", nodeIP: "", podIPs: []string{"10.0.0.1", "10.0.0.2", "10.0.0.3"}, expectedIPs: []string{"10.0.0.1"}, }, { name: "Multiple Dual-Stack IPs", nodeIP: "", podIPs: []string{"10.0.0.1", "10.0.0.2", "fd01::1234", "10.0.0.3", "fd01::5678"}, expectedIPs: []string{"10.0.0.1", "fd01::1234"}, }, } for _, tc := range testcases { t.Run(tc.name, func(t *testing.T) { testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) defer testKubelet.Cleanup() kl := testKubelet.kubelet if tc.nodeIP != "" { kl.nodeIPs = []net.IP{netutils.ParseIPSloppy(tc.nodeIP)} } podIPs := kl.sortPodIPs(tc.podIPs) if !reflect.DeepEqual(podIPs, tc.expectedIPs) { t.Fatalf("Expected PodIPs %#v, got %#v", tc.expectedIPs, podIPs) } }) } } // func init() { // klog.InitFlags(flag.CommandLine) // flag.CommandLine.Lookup("v").Value.Set("5") // } func TestConvertToAPIContainerStatusesDataRace(t *testing.T) { pod := podWithUIDNameNs("12345", "test-pod", "test-namespace") testTimestamp := time.Unix(123456789, 987654321) criStatus := &kubecontainer.PodStatus{ ID: pod.UID, Name: pod.Name, Namespace: pod.Namespace, ContainerStatuses: []*kubecontainer.Status{ {Name: "containerA", CreatedAt: testTimestamp}, {Name: "containerB", CreatedAt: testTimestamp.Add(1)}, }, } testKubelet := newTestKubelet(t, false) defer testKubelet.Cleanup() kl := testKubelet.kubelet // convertToAPIContainerStatuses is purely transformative and shouldn't alter the state of the kubelet // as there are no synchronisation events in that function (no locks, no channels, ...) each test routine // should have its own vector clock increased independently. Golang race detector uses pure happens-before // detection, so would catch a race condition consistently, despite only spawning 2 goroutines for i := 0; i < 2; i++ { go func() { kl.convertToAPIContainerStatuses(pod, criStatus, []v1.ContainerStatus{}, []v1.Container{}, false, false) }() } } func TestConvertToAPIContainerStatusesForResources(t *testing.T) { defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.InPlacePodVerticalScaling, true)() nowTime := time.Now() testContainerName := "ctr0" testContainerID := kubecontainer.ContainerID{Type: "test", ID: testContainerName} testContainer := v1.Container{ Name: testContainerName, Image: "img", } testContainerStatus := v1.ContainerStatus{ Name: testContainerName, } testPod := &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ UID: "123456", Name: "foo", Namespace: "bar", }, Spec: v1.PodSpec{ Containers: []v1.Container{testContainer}, }, Status: v1.PodStatus{ ContainerStatuses: []v1.ContainerStatus{testContainerStatus}, }, } testKubeContainerStatus := kubecontainer.Status{ Name: testContainerName, ID: testContainerID, Image: "img", ImageID: "1234", ImageRef: "img1234", State: kubecontainer.ContainerStateRunning, StartedAt: nowTime, } testPodStatus := &kubecontainer.PodStatus{ ID: testPod.UID, Name: testPod.Name, Namespace: testPod.Namespace, ContainerStatuses: []*kubecontainer.Status{&testKubeContainerStatus}, } CPU1AndMem1G := v1.ResourceList{v1.ResourceCPU: resource.MustParse("1"), v1.ResourceMemory: resource.MustParse("1Gi")} CPU2AndMem2G := v1.ResourceList{v1.ResourceCPU: resource.MustParse("2"), v1.ResourceMemory: resource.MustParse("2Gi")} CPU1AndMem1GAndStorage2G := CPU1AndMem1G.DeepCopy() CPU1AndMem1GAndStorage2G[v1.ResourceEphemeralStorage] = resource.MustParse("2Gi") CPU2AndMem2GAndStorage2G := CPU2AndMem2G.DeepCopy() CPU2AndMem2GAndStorage2G[v1.ResourceEphemeralStorage] = resource.MustParse("2Gi") testKubelet := newTestKubelet(t, false) defer testKubelet.Cleanup() kubelet := testKubelet.kubelet kubelet.statusManager = status.NewFakeManager() idx := 0 for tdesc, tc := range map[string]struct { Resources []v1.ResourceRequirements OldStatus []v1.ContainerStatus Expected []v1.ContainerStatus }{ "GuaranteedQoSPod with CPU and memory CRI status": { Resources: []v1.ResourceRequirements{{Limits: CPU1AndMem1G, Requests: CPU1AndMem1G}}, OldStatus: []v1.ContainerStatus{ { Name: testContainerName, Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{}}, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1G, Requests: CPU1AndMem1G}, }, }, Expected: []v1.ContainerStatus{ { Name: testContainerName, ContainerID: testContainerID.String(), Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{StartedAt: metav1.NewTime(nowTime)}}, AllocatedResources: CPU1AndMem1G, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1G, Requests: CPU1AndMem1G}, }, }, }, "BurstableQoSPod with CPU and memory CRI status": { Resources: []v1.ResourceRequirements{{Limits: CPU1AndMem1G, Requests: CPU1AndMem1G}}, OldStatus: []v1.ContainerStatus{ { Name: testContainerName, Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{}}, Resources: &v1.ResourceRequirements{Limits: CPU2AndMem2G, Requests: CPU1AndMem1G}, }, }, Expected: []v1.ContainerStatus{ { Name: testContainerName, ContainerID: testContainerID.String(), Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{StartedAt: metav1.NewTime(nowTime)}}, AllocatedResources: CPU1AndMem1G, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1G, Requests: CPU1AndMem1G}, }, }, }, "GuaranteedQoSPod with CPU and memory CRI status, with ephemeral storage": { Resources: []v1.ResourceRequirements{{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}}, OldStatus: []v1.ContainerStatus{ { Name: testContainerName, Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{}}, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1G, Requests: CPU1AndMem1G}, }, }, Expected: []v1.ContainerStatus{ { Name: testContainerName, ContainerID: testContainerID.String(), Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{StartedAt: metav1.NewTime(nowTime)}}, AllocatedResources: CPU1AndMem1GAndStorage2G, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}, }, }, }, "BurstableQoSPod with CPU and memory CRI status, with ephemeral storage": { Resources: []v1.ResourceRequirements{{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}}, OldStatus: []v1.ContainerStatus{ { Name: testContainerName, Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{}}, Resources: &v1.ResourceRequirements{Limits: CPU2AndMem2GAndStorage2G, Requests: CPU2AndMem2GAndStorage2G}, }, }, Expected: []v1.ContainerStatus{ { Name: testContainerName, ContainerID: testContainerID.String(), Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{StartedAt: metav1.NewTime(nowTime)}}, AllocatedResources: CPU1AndMem1GAndStorage2G, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}, }, }, }, "BurstableQoSPod with CPU and memory CRI status, with ephemeral storage, nil resources in OldStatus": { Resources: []v1.ResourceRequirements{{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}}, OldStatus: []v1.ContainerStatus{ { Name: testContainerName, Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{}}, }, }, Expected: []v1.ContainerStatus{ { Name: testContainerName, ContainerID: testContainerID.String(), Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{StartedAt: metav1.NewTime(nowTime)}}, AllocatedResources: CPU1AndMem1GAndStorage2G, Resources: &v1.ResourceRequirements{Limits: CPU1AndMem1GAndStorage2G, Requests: CPU1AndMem1GAndStorage2G}, }, }, }, "BestEffortQoSPod": { OldStatus: []v1.ContainerStatus{ { Name: testContainerName, Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{}}, Resources: &v1.ResourceRequirements{}, }, }, Expected: []v1.ContainerStatus{ { Name: testContainerName, ContainerID: testContainerID.String(), Image: "img", ImageID: "img1234", State: v1.ContainerState{Running: &v1.ContainerStateRunning{StartedAt: metav1.NewTime(nowTime)}}, Resources: &v1.ResourceRequirements{}, }, }, }, } { tPod := testPod.DeepCopy() tPod.Name = fmt.Sprintf("%s-%d", testPod.Name, idx) for i := range tPod.Spec.Containers { if tc.Resources != nil { tPod.Spec.Containers[i].Resources = tc.Resources[i] } kubelet.statusManager.SetPodAllocation(tPod) if tc.Resources != nil { tPod.Status.ContainerStatuses[i].AllocatedResources = tc.Resources[i].Requests testPodStatus.ContainerStatuses[i].Resources = &kubecontainer.ContainerResources{ MemoryLimit: tc.Resources[i].Limits.Memory(), CPULimit: tc.Resources[i].Limits.Cpu(), CPURequest: tc.Resources[i].Requests.Cpu(), } } } t.Logf("TestCase: %q", tdesc) cStatuses := kubelet.convertToAPIContainerStatuses(tPod, testPodStatus, tc.OldStatus, tPod.Spec.Containers, false, false) assert.Equal(t, tc.Expected, cStatuses) } } func TestKubelet_HandlePodCleanups(t *testing.T) { one := int64(1) two := int64(2) deleted := metav1.NewTime(time.Unix(2, 0).UTC()) type rejectedPod struct { uid types.UID reason string message string } simplePod := func() *v1.Pod { return &v1.Pod{ ObjectMeta: metav1.ObjectMeta{Name: "pod1", Namespace: "ns1", UID: types.UID("1")}, Spec: v1.PodSpec{ Containers: []v1.Container{ {Name: "container-1"}, }, }, } } withPhase := func(pod *v1.Pod, phase v1.PodPhase) *v1.Pod { pod.Status.Phase = phase return pod } staticPod := func() *v1.Pod { return &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ Name: "pod1", Namespace: "ns1", UID: types.UID("1"), Annotations: map[string]string{ kubetypes.ConfigSourceAnnotationKey: kubetypes.FileSource, }, }, Spec: v1.PodSpec{ Containers: []v1.Container{ {Name: "container-1"}, }, }, } } runtimePod := func(pod *v1.Pod) *kubecontainer.Pod { runningPod := &kubecontainer.Pod{ ID: types.UID(pod.UID), Name: pod.Name, Namespace: pod.Namespace, Containers: []*kubecontainer.Container{ {Name: "container-1", ID: kubecontainer.ContainerID{Type: "test", ID: "c1"}}, }, } for i, container := range pod.Spec.Containers { runningPod.Containers = append(runningPod.Containers, &kubecontainer.Container{ Name: container.Name, ID: kubecontainer.ContainerID{Type: "test", ID: fmt.Sprintf("c%d", i)}, }) } return runningPod } mirrorPod := func(pod *v1.Pod, nodeName string, nodeUID types.UID) *v1.Pod { copied := pod.DeepCopy() if copied.Annotations == nil { copied.Annotations = make(map[string]string) } copied.Annotations[kubetypes.ConfigMirrorAnnotationKey] = pod.Annotations[kubetypes.ConfigHashAnnotationKey] isTrue := true copied.OwnerReferences = append(copied.OwnerReferences, metav1.OwnerReference{ APIVersion: v1.SchemeGroupVersion.String(), Kind: "Node", Name: nodeName, UID: nodeUID, Controller: &isTrue, }) return copied } tests := []struct { name string pods []*v1.Pod runtimePods []*containertest.FakePod rejectedPods []rejectedPod terminatingErr error prepareWorker func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) wantWorker func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) wantWorkerAfterRetry func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) wantErr bool expectMetrics map[string]string expectMetricsAfterRetry map[string]string }{ { name: "missing pod is requested for termination with short grace period", wantErr: false, runtimePods: []*containertest.FakePod{ { Pod: runtimePod(staticPod()), }, }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { drainAllWorkers(w) uid := types.UID("1") // we expect runtime pods to be cleared from the status history as soon as they // reach completion if len(w.podSyncStatuses) != 0 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } r, ok := records[uid] if !ok || len(r) != 1 || r[0].updateType != kubetypes.SyncPodKill || r[0].terminated || r[0].runningPod == nil || r[0].gracePeriod != nil { t.Fatalf("unexpected pod sync records: %#v", r) } }, expectMetrics: map[string]string{ metrics.OrphanedRuntimePodTotal.FQName(): `# HELP kubelet_orphaned_runtime_pods_total [ALPHA] Number of pods that have been detected in the container runtime without being already known to the pod worker. This typically indicates the kubelet was restarted while a pod was force deleted in the API or in the local configuration, which is unusual. # TYPE kubelet_orphaned_runtime_pods_total counter kubelet_orphaned_runtime_pods_total 1 `, metrics.WorkingPodCount.FQName(): `# HELP kubelet_working_pods [ALPHA] Number of pods the kubelet is actually running, broken down by lifecycle phase, whether the pod is desired, orphaned, or runtime only (also orphaned), and whether the pod is static. An orphaned pod has been removed from local configuration or force deleted in the API and consumes resources that are not otherwise visible. # TYPE kubelet_working_pods gauge kubelet_working_pods{config="desired",lifecycle="sync",static=""} 0 kubelet_working_pods{config="desired",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="runtime_only",lifecycle="sync",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminated",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminating",static="unknown"} 1 `, }, }, { name: "terminating pod that errored and is not in config is notified by the cleanup", wantErr: false, runtimePods: []*containertest.FakePod{ { Pod: runtimePod(simplePod()), }, }, terminatingErr: errors.New("unable to terminate"), prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // send a create pod := simplePod() w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, }) drainAllWorkers(w) // send a delete update two := int64(2) deleted := metav1.NewTime(time.Unix(2, 0).UTC()) updatedPod := &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ Name: "pod1", Namespace: "ns1", UID: types.UID("1"), DeletionGracePeriodSeconds: &two, DeletionTimestamp: &deleted, }, Spec: v1.PodSpec{ TerminationGracePeriodSeconds: &two, Containers: []v1.Container{ {Name: "container-1"}, }, }, } w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodKill, StartTime: time.Unix(3, 0).UTC(), Pod: updatedPod, }) drainAllWorkers(w) r, ok := records[updatedPod.UID] if !ok || len(r) != 2 || r[1].gracePeriod == nil || *r[1].gracePeriod != 2 { t.Fatalf("unexpected records: %#v", records) } // pod worker thinks pod1 exists, but the kubelet will not have it in the pod manager }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || !s.IsDeleted() { t.Fatalf("unexpected requested pod termination: %#v", s) } // expect we get a pod sync record for kill that should have the same grace period as before (2), but no // running pod because the SyncKnownPods method killed it if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &two}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &two}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, expectMetrics: map[string]string{ metrics.DesiredPodCount.FQName(): `# HELP kubelet_desired_pods [ALPHA] The number of pods the kubelet is being instructed to run. static is true if the pod is not from the apiserver. # TYPE kubelet_desired_pods gauge kubelet_desired_pods{static=""} 0 kubelet_desired_pods{static="true"} 0 `, metrics.ActivePodCount.FQName(): `# HELP kubelet_active_pods [ALPHA] The number of pods the kubelet considers active and which are being considered when admitting new pods. static is true if the pod is not from the apiserver. # TYPE kubelet_active_pods gauge kubelet_active_pods{static=""} 0 kubelet_active_pods{static="true"} 0 `, metrics.OrphanedRuntimePodTotal.FQName(): `# HELP kubelet_orphaned_runtime_pods_total [ALPHA] Number of pods that have been detected in the container runtime without being already known to the pod worker. This typically indicates the kubelet was restarted while a pod was force deleted in the API or in the local configuration, which is unusual. # TYPE kubelet_orphaned_runtime_pods_total counter kubelet_orphaned_runtime_pods_total 0 `, metrics.WorkingPodCount.FQName(): `# HELP kubelet_working_pods [ALPHA] Number of pods the kubelet is actually running, broken down by lifecycle phase, whether the pod is desired, orphaned, or runtime only (also orphaned), and whether the pod is static. An orphaned pod has been removed from local configuration or force deleted in the API and consumes resources that are not otherwise visible. # TYPE kubelet_working_pods gauge kubelet_working_pods{config="desired",lifecycle="sync",static=""} 0 kubelet_working_pods{config="desired",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static=""} 1 kubelet_working_pods{config="orphan",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="runtime_only",lifecycle="sync",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminated",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminating",static="unknown"} 0 `, }, wantWorkerAfterRetry: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || !s.IsFinished() || s.IsWorking() || !s.IsDeleted() { t.Fatalf("unexpected requested pod termination: %#v", s) } // expect we get a pod sync record for kill that should have the same grace period as before (2), but no // running pod because the SyncKnownPods method killed it if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &two}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &two}, // after the second attempt {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &two}, // from termination {name: "pod1", terminated: true}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, }, { name: "terminating pod that errored and is not in config or worker is force killed by the cleanup", wantErr: false, runtimePods: []*containertest.FakePod{ { Pod: runtimePod(simplePod()), }, }, terminatingErr: errors.New("unable to terminate"), wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || !s.IsDeleted() { t.Fatalf("unexpected requested pod termination: %#v", s) } // ensure that we recorded the appropriate state for replays expectedRunningPod := runtimePod(simplePod()) if actual, expected := s.activeUpdate, (&UpdatePodOptions{ RunningPod: expectedRunningPod, KillPodOptions: &KillPodOptions{PodTerminationGracePeriodSecondsOverride: &one}, }); !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod activeUpdate: %s", cmp.Diff(expected, actual)) } // expect that a pod the pod worker does not recognize is force killed with grace period 1 if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodKill, runningPod: expectedRunningPod}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, wantWorkerAfterRetry: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 0 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } // expect that a pod the pod worker does not recognize is force killed with grace period 1 expectedRunningPod := runtimePod(simplePod()) if actual, expected := records[uid], []syncPodRecord{ // first attempt, did not succeed {name: "pod1", updateType: kubetypes.SyncPodKill, runningPod: expectedRunningPod}, // second attempt, should succeed {name: "pod1", updateType: kubetypes.SyncPodKill, runningPod: expectedRunningPod}, // because this is a runtime pod, we don't have enough info to invoke syncTerminatedPod and so // we exit after the retry succeeds }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, }, { name: "pod is added to worker by sync method", wantErr: false, pods: []*v1.Pod{ simplePod(), }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || s.IsTerminationRequested() || s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || s.IsDeleted() { t.Fatalf("unexpected requested pod termination: %#v", s) } // pod was synced once if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, expectMetrics: map[string]string{ metrics.DesiredPodCount.FQName(): `# HELP kubelet_desired_pods [ALPHA] The number of pods the kubelet is being instructed to run. static is true if the pod is not from the apiserver. # TYPE kubelet_desired_pods gauge kubelet_desired_pods{static=""} 1 kubelet_desired_pods{static="true"} 0 `, metrics.ActivePodCount.FQName(): `# HELP kubelet_active_pods [ALPHA] The number of pods the kubelet considers active and which are being considered when admitting new pods. static is true if the pod is not from the apiserver. # TYPE kubelet_active_pods gauge kubelet_active_pods{static=""} 1 kubelet_active_pods{static="true"} 0 `, metrics.OrphanedRuntimePodTotal.FQName(): `# HELP kubelet_orphaned_runtime_pods_total [ALPHA] Number of pods that have been detected in the container runtime without being already known to the pod worker. This typically indicates the kubelet was restarted while a pod was force deleted in the API or in the local configuration, which is unusual. # TYPE kubelet_orphaned_runtime_pods_total counter kubelet_orphaned_runtime_pods_total 0 `, // Note that this test simulates a net-new pod being discovered during HandlePodCleanups that was not // delivered to the pod worker via HandlePodAdditions - there is no *known* scenario that can happen, but // we want to capture it in the metric. The more likely scenario is that a static pod with a predefined // UID is updated, which causes pod config to deliver DELETE -> ADD while the old pod is still shutting // down and the pod worker to ignore the ADD. The HandlePodCleanups method then is responsible for syncing // that pod to the pod worker so that it restarts. metrics.RestartedPodTotal.FQName(): `# HELP kubelet_restarted_pods_total [ALPHA] Number of pods that have been restarted because they were deleted and recreated with the same UID while the kubelet was watching them (common for static pods, extremely uncommon for API pods) # TYPE kubelet_restarted_pods_total counter kubelet_restarted_pods_total{static=""} 1 kubelet_restarted_pods_total{static="true"} 0 `, metrics.WorkingPodCount.FQName(): `# HELP kubelet_working_pods [ALPHA] Number of pods the kubelet is actually running, broken down by lifecycle phase, whether the pod is desired, orphaned, or runtime only (also orphaned), and whether the pod is static. An orphaned pod has been removed from local configuration or force deleted in the API and consumes resources that are not otherwise visible. # TYPE kubelet_working_pods gauge kubelet_working_pods{config="desired",lifecycle="sync",static=""} 1 kubelet_working_pods{config="desired",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="runtime_only",lifecycle="sync",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminated",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminating",static="unknown"} 0 `, }, }, { name: "pod is not added to worker by sync method because it is in a terminal phase", wantErr: false, pods: []*v1.Pod{ withPhase(simplePod(), v1.PodFailed), }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 0 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } // no pod sync record was delivered if actual, expected := records[uid], []syncPodRecord(nil); !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, expectMetrics: map[string]string{ metrics.DesiredPodCount.FQName(): `# HELP kubelet_desired_pods [ALPHA] The number of pods the kubelet is being instructed to run. static is true if the pod is not from the apiserver. # TYPE kubelet_desired_pods gauge kubelet_desired_pods{static=""} 1 kubelet_desired_pods{static="true"} 0 `, metrics.ActivePodCount.FQName(): `# HELP kubelet_active_pods [ALPHA] The number of pods the kubelet considers active and which are being considered when admitting new pods. static is true if the pod is not from the apiserver. # TYPE kubelet_active_pods gauge kubelet_active_pods{static=""} 0 kubelet_active_pods{static="true"} 0 `, metrics.OrphanedRuntimePodTotal.FQName(): `# HELP kubelet_orphaned_runtime_pods_total [ALPHA] Number of pods that have been detected in the container runtime without being already known to the pod worker. This typically indicates the kubelet was restarted while a pod was force deleted in the API or in the local configuration, which is unusual. # TYPE kubelet_orphaned_runtime_pods_total counter kubelet_orphaned_runtime_pods_total 0 `, // Note that this test simulates a net-new pod being discovered during HandlePodCleanups that was not // delivered to the pod worker via HandlePodAdditions - there is no *known* scenario that can happen, but // we want to capture it in the metric. The more likely scenario is that a static pod with a predefined // UID is updated, which causes pod config to deliver DELETE -> ADD while the old pod is still shutting // down and the pod worker to ignore the ADD. The HandlePodCleanups method then is responsible for syncing // that pod to the pod worker so that it restarts. metrics.RestartedPodTotal.FQName(): `# HELP kubelet_restarted_pods_total [ALPHA] Number of pods that have been restarted because they were deleted and recreated with the same UID while the kubelet was watching them (common for static pods, extremely uncommon for API pods) # TYPE kubelet_restarted_pods_total counter kubelet_restarted_pods_total{static=""} 0 kubelet_restarted_pods_total{static="true"} 0 `, metrics.WorkingPodCount.FQName(): `# HELP kubelet_working_pods [ALPHA] Number of pods the kubelet is actually running, broken down by lifecycle phase, whether the pod is desired, orphaned, or runtime only (also orphaned), and whether the pod is static. An orphaned pod has been removed from local configuration or force deleted in the API and consumes resources that are not otherwise visible. # TYPE kubelet_working_pods gauge kubelet_working_pods{config="desired",lifecycle="sync",static=""} 0 kubelet_working_pods{config="desired",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="runtime_only",lifecycle="sync",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminated",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminating",static="unknown"} 0 `, }, }, { name: "pod is not added to worker by sync method because it has been rejected", wantErr: false, pods: []*v1.Pod{ simplePod(), }, rejectedPods: []rejectedPod{ {uid: "1", reason: "Test", message: "rejected"}, }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 0 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } // no pod sync record was delivered if actual, expected := records[uid], []syncPodRecord(nil); !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, expectMetrics: map[string]string{ metrics.DesiredPodCount.FQName(): `# HELP kubelet_desired_pods [ALPHA] The number of pods the kubelet is being instructed to run. static is true if the pod is not from the apiserver. # TYPE kubelet_desired_pods gauge kubelet_desired_pods{static=""} 1 kubelet_desired_pods{static="true"} 0 `, metrics.ActivePodCount.FQName(): `# HELP kubelet_active_pods [ALPHA] The number of pods the kubelet considers active and which are being considered when admitting new pods. static is true if the pod is not from the apiserver. # TYPE kubelet_active_pods gauge kubelet_active_pods{static=""} 0 kubelet_active_pods{static="true"} 0 `, metrics.OrphanedRuntimePodTotal.FQName(): `# HELP kubelet_orphaned_runtime_pods_total [ALPHA] Number of pods that have been detected in the container runtime without being already known to the pod worker. This typically indicates the kubelet was restarted while a pod was force deleted in the API or in the local configuration, which is unusual. # TYPE kubelet_orphaned_runtime_pods_total counter kubelet_orphaned_runtime_pods_total 0 `, // Note that this test simulates a net-new pod being discovered during HandlePodCleanups that was not // delivered to the pod worker via HandlePodAdditions - there is no *known* scenario that can happen, but // we want to capture it in the metric. The more likely scenario is that a static pod with a predefined // UID is updated, which causes pod config to deliver DELETE -> ADD while the old pod is still shutting // down and the pod worker to ignore the ADD. The HandlePodCleanups method then is responsible for syncing // that pod to the pod worker so that it restarts. metrics.RestartedPodTotal.FQName(): `# HELP kubelet_restarted_pods_total [ALPHA] Number of pods that have been restarted because they were deleted and recreated with the same UID while the kubelet was watching them (common for static pods, extremely uncommon for API pods) # TYPE kubelet_restarted_pods_total counter kubelet_restarted_pods_total{static=""} 0 kubelet_restarted_pods_total{static="true"} 0 `, metrics.WorkingPodCount.FQName(): `# HELP kubelet_working_pods [ALPHA] Number of pods the kubelet is actually running, broken down by lifecycle phase, whether the pod is desired, orphaned, or runtime only (also orphaned), and whether the pod is static. An orphaned pod has been removed from local configuration or force deleted in the API and consumes resources that are not otherwise visible. # TYPE kubelet_working_pods gauge kubelet_working_pods{config="desired",lifecycle="sync",static=""} 0 kubelet_working_pods{config="desired",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="runtime_only",lifecycle="sync",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminated",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminating",static="unknown"} 0 `, }, }, { name: "terminating pod that is known to the config gets no update during pod cleanup", wantErr: false, pods: []*v1.Pod{ { ObjectMeta: metav1.ObjectMeta{ Name: "pod1", Namespace: "ns1", UID: types.UID("1"), DeletionGracePeriodSeconds: &two, DeletionTimestamp: &deleted, }, Spec: v1.PodSpec{ TerminationGracePeriodSeconds: &two, Containers: []v1.Container{ {Name: "container-1"}, }, }, }, }, runtimePods: []*containertest.FakePod{ { Pod: runtimePod(simplePod()), }, }, terminatingErr: errors.New("unable to terminate"), prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // send a create pod := &v1.Pod{ ObjectMeta: metav1.ObjectMeta{Name: "pod1", Namespace: "ns1", UID: types.UID("1")}, Spec: v1.PodSpec{ Containers: []v1.Container{ {Name: "container-1"}, }, }, } w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, }) drainAllWorkers(w) // send a delete update updatedPod := &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ Name: "pod1", Namespace: "ns1", UID: types.UID("1"), DeletionGracePeriodSeconds: &two, DeletionTimestamp: &deleted, }, Spec: v1.PodSpec{ TerminationGracePeriodSeconds: &two, Containers: []v1.Container{ {Name: "container-1"}, }, }, } w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodKill, StartTime: time.Unix(3, 0).UTC(), Pod: updatedPod, }) drainAllWorkers(w) // pod worker thinks pod1 is terminated and pod1 visible to config if actual, expected := records[updatedPod.UID], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &two}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || !s.IsDeleted() { t.Fatalf("unexpected requested pod termination: %#v", s) } // no pod sync record was delivered if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &two}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, }, { name: "pod that could not start and is not in config is force terminated during pod cleanup", wantErr: false, runtimePods: []*containertest.FakePod{ { Pod: runtimePod(simplePod()), }, }, terminatingErr: errors.New("unable to terminate"), prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // send a create of a static pod pod := staticPod() // block startup of the static pod due to full name collision w.startedStaticPodsByFullname[kubecontainer.GetPodFullName(pod)] = types.UID("2") w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, }) drainAllWorkers(w) if _, ok := records[pod.UID]; ok { t.Fatalf("unexpected records: %#v", records) } // pod worker is unaware of pod1 yet, and the kubelet will not have it in the pod manager }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // the pod is not started and is cleaned, but the runtime state causes us to reenter // and perform a direct termination (we never observed the pod as being started by // us, and so it is safe to completely tear down) uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || !s.IsDeleted() { t.Errorf("unexpected requested pod termination: %#v", s) } // ensure that we recorded the appropriate state for replays expectedRunningPod := runtimePod(simplePod()) if actual, expected := s.activeUpdate, (&UpdatePodOptions{ RunningPod: expectedRunningPod, KillPodOptions: &KillPodOptions{PodTerminationGracePeriodSecondsOverride: &one}, }); !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod activeUpdate: %s", cmp.Diff(expected, actual)) } // sync is never invoked if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodKill, runningPod: expectedRunningPod}, // this pod is detected as an orphaned running pod and will exit }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, wantWorkerAfterRetry: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 0 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } // expect we get a pod sync record for kill that should have the default grace period expectedRunningPod := runtimePod(simplePod()) if actual, expected := records[uid], []syncPodRecord{ // first attempt, syncTerminatingPod failed with an error {name: "pod1", updateType: kubetypes.SyncPodKill, runningPod: expectedRunningPod}, // second attempt {name: "pod1", updateType: kubetypes.SyncPodKill, runningPod: expectedRunningPod}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, }, { name: "pod that could not start still has a pending update and is tracked in metrics", wantErr: false, pods: []*v1.Pod{ staticPod(), }, prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // send a create of a static pod pod := staticPod() // block startup of the static pod due to full name collision w.startedStaticPodsByFullname[kubecontainer.GetPodFullName(pod)] = types.UID("2") w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, }) drainAllWorkers(w) if _, ok := records[pod.UID]; ok { t.Fatalf("unexpected records: %#v", records) } // pod worker is unaware of pod1 yet }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || s.IsTerminationRequested() || s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || s.IsDeleted() || s.restartRequested || s.activeUpdate != nil || s.pendingUpdate == nil { t.Errorf("unexpected requested pod termination: %#v", s) } // expect that no sync calls are made, since the pod doesn't ever start if actual, expected := records[uid], []syncPodRecord(nil); !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, expectMetrics: map[string]string{ metrics.DesiredPodCount.FQName(): `# HELP kubelet_desired_pods [ALPHA] The number of pods the kubelet is being instructed to run. static is true if the pod is not from the apiserver. # TYPE kubelet_desired_pods gauge kubelet_desired_pods{static=""} 0 kubelet_desired_pods{static="true"} 1 `, metrics.WorkingPodCount.FQName(): `# HELP kubelet_working_pods [ALPHA] Number of pods the kubelet is actually running, broken down by lifecycle phase, whether the pod is desired, orphaned, or runtime only (also orphaned), and whether the pod is static. An orphaned pod has been removed from local configuration or force deleted in the API and consumes resources that are not otherwise visible. # TYPE kubelet_working_pods gauge kubelet_working_pods{config="desired",lifecycle="sync",static=""} 0 kubelet_working_pods{config="desired",lifecycle="sync",static="true"} 1 kubelet_working_pods{config="desired",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="runtime_only",lifecycle="sync",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminated",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminating",static="unknown"} 0 `, }, }, { name: "pod that could not start and is not in config is force terminated without runtime during pod cleanup", wantErr: false, terminatingErr: errors.New("unable to terminate"), prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // send a create of a static pod pod := staticPod() // block startup of the static pod due to full name collision w.startedStaticPodsByFullname[kubecontainer.GetPodFullName(pod)] = types.UID("2") w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, }) drainAllWorkers(w) if _, ok := records[pod.UID]; ok { t.Fatalf("unexpected records: %#v", records) } // pod worker is unaware of pod1 yet, and the kubelet will not have it in the pod manager }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 0 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } // expect that no sync calls are made, since the pod doesn't ever start if actual, expected := records[uid], []syncPodRecord(nil); !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, }, { name: "pod that is terminating is recreated by config with the same UID", wantErr: false, pods: []*v1.Pod{ func() *v1.Pod { pod := staticPod() pod.Annotations["version"] = "2" return pod }(), }, runtimePods: []*containertest.FakePod{ { Pod: runtimePod(staticPod()), }, }, terminatingErr: errors.New("unable to terminate"), prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // send a create of a static pod pod := staticPod() w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, }) drainAllWorkers(w) // terminate the pod (which won't complete) and then deliver a recreate by that same UID w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodKill, StartTime: time.Unix(2, 0).UTC(), Pod: pod, }) pod = staticPod() pod.Annotations["version"] = "2" w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(3, 0).UTC(), Pod: pod, }) drainAllWorkers(w) // expect we get a pod sync record for kill that should have the default grace period if actual, expected := records[pod.UID], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &one}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } // pod worker is aware of pod1, but the kubelet will not have it in the pod manager }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || s.IsDeleted() || !s.restartRequested { t.Errorf("unexpected requested pod termination: %#v", s) } // expect we get a pod sync record for kill that should have the default grace period if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &one}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, expectMetrics: map[string]string{ metrics.DesiredPodCount.FQName(): `# HELP kubelet_desired_pods [ALPHA] The number of pods the kubelet is being instructed to run. static is true if the pod is not from the apiserver. # TYPE kubelet_desired_pods gauge kubelet_desired_pods{static=""} 0 kubelet_desired_pods{static="true"} 1 `, metrics.ActivePodCount.FQName(): `# HELP kubelet_active_pods [ALPHA] The number of pods the kubelet considers active and which are being considered when admitting new pods. static is true if the pod is not from the apiserver. # TYPE kubelet_active_pods gauge kubelet_active_pods{static=""} 0 kubelet_active_pods{static="true"} 1 `, metrics.OrphanedRuntimePodTotal.FQName(): `# HELP kubelet_orphaned_runtime_pods_total [ALPHA] Number of pods that have been detected in the container runtime without being already known to the pod worker. This typically indicates the kubelet was restarted while a pod was force deleted in the API or in the local configuration, which is unusual. # TYPE kubelet_orphaned_runtime_pods_total counter kubelet_orphaned_runtime_pods_total 0 `, metrics.RestartedPodTotal.FQName(): `# HELP kubelet_restarted_pods_total [ALPHA] Number of pods that have been restarted because they were deleted and recreated with the same UID while the kubelet was watching them (common for static pods, extremely uncommon for API pods) # TYPE kubelet_restarted_pods_total counter kubelet_restarted_pods_total{static=""} 0 kubelet_restarted_pods_total{static="true"} 0 `, metrics.WorkingPodCount.FQName(): `# HELP kubelet_working_pods [ALPHA] Number of pods the kubelet is actually running, broken down by lifecycle phase, whether the pod is desired, orphaned, or runtime only (also orphaned), and whether the pod is static. An orphaned pod has been removed from local configuration or force deleted in the API and consumes resources that are not otherwise visible. # TYPE kubelet_working_pods gauge kubelet_working_pods{config="desired",lifecycle="sync",static=""} 0 kubelet_working_pods{config="desired",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static="true"} 1 kubelet_working_pods{config="orphan",lifecycle="sync",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="runtime_only",lifecycle="sync",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminated",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminating",static="unknown"} 0 `, }, expectMetricsAfterRetry: map[string]string{ metrics.RestartedPodTotal.FQName(): `# HELP kubelet_restarted_pods_total [ALPHA] Number of pods that have been restarted because they were deleted and recreated with the same UID while the kubelet was watching them (common for static pods, extremely uncommon for API pods) # TYPE kubelet_restarted_pods_total counter kubelet_restarted_pods_total{static=""} 0 kubelet_restarted_pods_total{static="true"} 1 `, }, }, { name: "started pod that is not in config is force terminated during pod cleanup", wantErr: false, runtimePods: []*containertest.FakePod{ { Pod: runtimePod(simplePod()), }, }, terminatingErr: errors.New("unable to terminate"), prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // send a create of a static pod pod := staticPod() w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, }) drainAllWorkers(w) // expect we get a pod sync record for kill that should have the default grace period if actual, expected := records[pod.UID], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } // pod worker is aware of pod1, but the kubelet will not have it in the pod manager }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || !s.IsDeleted() { t.Errorf("unexpected requested pod termination: %#v", s) } // expect we get a pod sync record for kill that should have the default grace period if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, }, { name: "started pod that is not in config or runtime is force terminated during pod cleanup", wantErr: false, runtimePods: []*containertest.FakePod{}, terminatingErr: errors.New("unable to terminate"), prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // send a create of a static pod pod := staticPod() w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, MirrorPod: mirrorPod(pod, "node-1", "node-uid-1"), }) drainAllWorkers(w) // expect we get a pod sync record for kill that should have the default grace period if actual, expected := records[pod.UID], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } // pod worker is aware of pod1, but the kubelet will not have it in the pod manager }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || !s.IsDeleted() { t.Errorf("unexpected requested pod termination: %#v", s) } // ensure that we recorded the appropriate state for replays expectedPod := staticPod() if actual, expected := s.activeUpdate, (&UpdatePodOptions{ Pod: expectedPod, MirrorPod: mirrorPod(expectedPod, "node-1", "node-uid-1"), }); !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod activeUpdate: %s", cmp.Diff(expected, actual)) } // expect we get a pod sync record for kill that should have the default grace period if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, wantWorkerAfterRetry: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || !s.IsTerminationRequested() || !s.IsTerminationStarted() || !s.IsFinished() || s.IsWorking() || !s.IsDeleted() { t.Errorf("unexpected requested pod termination: %#v", s) } // ensure that we recorded the appropriate state for replays expectedPod := staticPod() if actual, expected := s.activeUpdate, (&UpdatePodOptions{ Pod: expectedPod, MirrorPod: mirrorPod(expectedPod, "node-1", "node-uid-1"), }); !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod activeUpdate: %s", cmp.Diff(expected, actual)) } // expect we get a pod sync record for kill that should have the default grace period if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill}, // second attempt at kill {name: "pod1", updateType: kubetypes.SyncPodKill}, {name: "pod1", terminated: true}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, }, { name: "terminated pod is restarted in the same invocation that it is detected", wantErr: false, pods: []*v1.Pod{ func() *v1.Pod { pod := staticPod() pod.Annotations = map[string]string{"version": "2"} return pod }(), }, prepareWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { // simulate a delete and recreate of the static pod pod := simplePod() w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, StartTime: time.Unix(1, 0).UTC(), Pod: pod, }) drainAllWorkers(w) w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodKill, Pod: pod, }) pod2 := simplePod() pod2.Annotations = map[string]string{"version": "2"} w.UpdatePod(UpdatePodOptions{ UpdateType: kubetypes.SyncPodCreate, Pod: pod2, }) drainAllWorkers(w) }, wantWorker: func(t *testing.T, w *podWorkers, records map[types.UID][]syncPodRecord) { uid := types.UID("1") if len(w.podSyncStatuses) != 1 { t.Fatalf("unexpected sync statuses: %#v", w.podSyncStatuses) } s, ok := w.podSyncStatuses[uid] if !ok || s.IsTerminationRequested() || s.IsTerminationStarted() || s.IsFinished() || s.IsWorking() || s.IsDeleted() { t.Fatalf("unexpected requested pod termination: %#v", s) } if s.pendingUpdate != nil || s.activeUpdate == nil || s.activeUpdate.Pod == nil || s.activeUpdate.Pod.Annotations["version"] != "2" { t.Fatalf("unexpected restarted pod: %#v", s.activeUpdate.Pod) } // expect we get a pod sync record for kill that should have the same grace period as before (2), but no // running pod because the SyncKnownPods method killed it if actual, expected := records[uid], []syncPodRecord{ {name: "pod1", updateType: kubetypes.SyncPodCreate}, {name: "pod1", updateType: kubetypes.SyncPodKill, gracePeriod: &one}, {name: "pod1", terminated: true}, {name: "pod1", updateType: kubetypes.SyncPodCreate}, }; !reflect.DeepEqual(expected, actual) { t.Fatalf("unexpected pod sync records: %s", cmp.Diff(expected, actual, cmp.AllowUnexported(syncPodRecord{}))) } }, expectMetrics: map[string]string{ metrics.DesiredPodCount.FQName(): `# HELP kubelet_desired_pods [ALPHA] The number of pods the kubelet is being instructed to run. static is true if the pod is not from the apiserver. # TYPE kubelet_desired_pods gauge kubelet_desired_pods{static=""} 1 kubelet_desired_pods{static="true"} 0 `, metrics.ActivePodCount.FQName(): `# HELP kubelet_active_pods [ALPHA] The number of pods the kubelet considers active and which are being considered when admitting new pods. static is true if the pod is not from the apiserver. # TYPE kubelet_active_pods gauge kubelet_active_pods{static=""} 1 kubelet_active_pods{static="true"} 0 `, metrics.OrphanedRuntimePodTotal.FQName(): `# HELP kubelet_orphaned_runtime_pods_total [ALPHA] Number of pods that have been detected in the container runtime without being already known to the pod worker. This typically indicates the kubelet was restarted while a pod was force deleted in the API or in the local configuration, which is unusual. # TYPE kubelet_orphaned_runtime_pods_total counter kubelet_orphaned_runtime_pods_total 0 `, metrics.RestartedPodTotal.FQName(): `# HELP kubelet_restarted_pods_total [ALPHA] Number of pods that have been restarted because they were deleted and recreated with the same UID while the kubelet was watching them (common for static pods, extremely uncommon for API pods) # TYPE kubelet_restarted_pods_total counter kubelet_restarted_pods_total{static=""} 1 kubelet_restarted_pods_total{static="true"} 0 `, metrics.WorkingPodCount.FQName(): `# HELP kubelet_working_pods [ALPHA] Number of pods the kubelet is actually running, broken down by lifecycle phase, whether the pod is desired, orphaned, or runtime only (also orphaned), and whether the pod is static. An orphaned pod has been removed from local configuration or force deleted in the API and consumes resources that are not otherwise visible. # TYPE kubelet_working_pods gauge kubelet_working_pods{config="desired",lifecycle="sync",static=""} 1 kubelet_working_pods{config="desired",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="desired",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="sync",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminated",static="true"} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static=""} 0 kubelet_working_pods{config="orphan",lifecycle="terminating",static="true"} 0 kubelet_working_pods{config="runtime_only",lifecycle="sync",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminated",static="unknown"} 0 kubelet_working_pods{config="runtime_only",lifecycle="terminating",static="unknown"} 0 `, }, }, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { // clear the metrics for testing metrics.Register() for _, metric := range []interface{ Reset() }{ metrics.DesiredPodCount, metrics.ActivePodCount, metrics.RestartedPodTotal, metrics.OrphanedRuntimePodTotal, metrics.WorkingPodCount, } { metric.Reset() } metrics.MirrorPodCount.Set(0) testKubelet := newTestKubelet(t, false) defer testKubelet.Cleanup() kl := testKubelet.kubelet podWorkers, _, processed := createPodWorkers() kl.podWorkers = podWorkers originalPodSyncer := podWorkers.podSyncer syncFuncs := newPodSyncerFuncs(originalPodSyncer) podWorkers.podSyncer = &syncFuncs if tt.terminatingErr != nil { syncFuncs.syncTerminatingPod = func(ctx context.Context, pod *v1.Pod, podStatus *kubecontainer.PodStatus, gracePeriod *int64, podStatusFn func(*v1.PodStatus)) error { t.Logf("called syncTerminatingPod") if err := originalPodSyncer.SyncTerminatingPod(ctx, pod, podStatus, gracePeriod, podStatusFn); err != nil { t.Fatalf("unexpected error in syncTerminatingPodFn: %v", err) } return tt.terminatingErr } syncFuncs.syncTerminatingRuntimePod = func(ctx context.Context, runningPod *kubecontainer.Pod) error { if err := originalPodSyncer.SyncTerminatingRuntimePod(ctx, runningPod); err != nil { t.Fatalf("unexpected error in syncTerminatingRuntimePodFn: %v", err) } return tt.terminatingErr } } if tt.prepareWorker != nil { tt.prepareWorker(t, podWorkers, processed) } testKubelet.fakeRuntime.PodList = tt.runtimePods kl.podManager.SetPods(tt.pods) for _, reject := range tt.rejectedPods { pod, ok := kl.podManager.GetPodByUID(reject.uid) if !ok { t.Fatalf("unable to reject pod by UID %v", reject.uid) } kl.rejectPod(pod, reject.reason, reject.message) } if err := kl.HandlePodCleanups(context.Background()); (err != nil) != tt.wantErr { t.Errorf("Kubelet.HandlePodCleanups() error = %v, wantErr %v", err, tt.wantErr) } drainAllWorkers(podWorkers) if tt.wantWorker != nil { tt.wantWorker(t, podWorkers, processed) } for k, v := range tt.expectMetrics { testMetric(t, k, v) } // check after the terminating error clears if tt.wantWorkerAfterRetry != nil { podWorkers.podSyncer = originalPodSyncer if err := kl.HandlePodCleanups(context.Background()); (err != nil) != tt.wantErr { t.Errorf("Kubelet.HandlePodCleanups() second error = %v, wantErr %v", err, tt.wantErr) } drainAllWorkers(podWorkers) tt.wantWorkerAfterRetry(t, podWorkers, processed) for k, v := range tt.expectMetricsAfterRetry { testMetric(t, k, v) } } }) } } func testMetric(t *testing.T, metricName string, expectedMetric string) { t.Helper() err := testutil.GatherAndCompare(metrics.GetGather(), strings.NewReader(expectedMetric), metricName) if err != nil { t.Error(err) } } func TestGetNonExistentImagePullSecret(t *testing.T) { secrets := make([]*v1.Secret, 0) fakeRecorder := record.NewFakeRecorder(1) testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */) testKubelet.kubelet.recorder = fakeRecorder testKubelet.kubelet.secretManager = secret.NewFakeManagerWithSecrets(secrets) defer testKubelet.Cleanup() expectedEvent := "Warning FailedToRetrieveImagePullSecret Unable to retrieve some image pull secrets (secretFoo); attempting to pull the image may not succeed." testPod := &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ Namespace: "nsFoo", Name: "podFoo", Annotations: map[string]string{}, }, Spec: v1.PodSpec{ ImagePullSecrets: []v1.LocalObjectReference{ {Name: "secretFoo"}, }, }, } pullSecrets := testKubelet.kubelet.getPullSecretsForPod(testPod) assert.Equal(t, 0, len(pullSecrets)) assert.Equal(t, 1, len(fakeRecorder.Events)) event := <-fakeRecorder.Events assert.Equal(t, event, expectedEvent) } func TestParseGetSubIdsOutput(t *testing.T) { tests := []struct { name string input string wantFirstID uint32 wantRangeLen uint32 wantErr bool }{ { name: "valid", input: "0: kubelet 65536 2147483648", wantFirstID: 65536, wantRangeLen: 2147483648, }, { name: "multiple lines", input: "0: kubelet 1 2\n1: kubelet 3 4\n", wantErr: true, }, { name: "wrong format", input: "0: kubelet 65536", wantErr: true, }, { name: "non numeric 1", input: "0: kubelet Foo 65536", wantErr: true, }, { name: "non numeric 2", input: "0: kubelet 0 Bar", wantErr: true, }, { name: "overflow 1", input: "0: kubelet 4294967296 2147483648", wantErr: true, }, { name: "overflow 2", input: "0: kubelet 65536 4294967296", wantErr: true, }, { name: "negative value 1", input: "0: kubelet -1 2147483648", wantErr: true, }, { name: "negative value 2", input: "0: kubelet 65536 -1", wantErr: true, }, } for _, tc := range tests { t.Run(tc.name, func(t *testing.T) { gotFirstID, gotRangeLen, err := parseGetSubIdsOutput(tc.input) if tc.wantErr { if err == nil { t.Errorf("%s: expected error, got nil", tc.name) } } else { if err != nil { t.Errorf("%s: unexpected error: %v", tc.name, err) } if gotFirstID != tc.wantFirstID || gotRangeLen != tc.wantRangeLen { t.Errorf("%s: got (%d, %d), want (%d, %d)", tc.name, gotFirstID, gotRangeLen, tc.wantFirstID, tc.wantRangeLen) } } }) } } func TestResolveRecursiveReadOnly(t *testing.T) { testCases := []struct { m v1.VolumeMount runtimeSupportsRRO bool expected bool expectedErr string }{ { m: v1.VolumeMount{Name: "rw"}, runtimeSupportsRRO: true, expected: false, expectedErr: "", }, { m: v1.VolumeMount{Name: "ro", ReadOnly: true}, runtimeSupportsRRO: true, expected: false, expectedErr: "", }, { m: v1.VolumeMount{Name: "ro", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyDisabled)}, runtimeSupportsRRO: true, expected: false, expectedErr: "", }, { m: v1.VolumeMount{Name: "rro-if-possible", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyIfPossible)}, runtimeSupportsRRO: true, expected: true, expectedErr: "", }, { m: v1.VolumeMount{Name: "rro-if-possible", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyIfPossible), MountPropagation: ptr.To(v1.MountPropagationNone)}, runtimeSupportsRRO: true, expected: true, expectedErr: "", }, { m: v1.VolumeMount{Name: "rro-if-possible", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyIfPossible), MountPropagation: ptr.To(v1.MountPropagationHostToContainer)}, runtimeSupportsRRO: true, expected: false, expectedErr: "not compatible with propagation", }, { m: v1.VolumeMount{Name: "rro-if-possible", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyIfPossible), MountPropagation: ptr.To(v1.MountPropagationBidirectional)}, runtimeSupportsRRO: true, expected: false, expectedErr: "not compatible with propagation", }, { m: v1.VolumeMount{Name: "rro-if-possible", ReadOnly: false, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyIfPossible)}, runtimeSupportsRRO: true, expected: false, expectedErr: "not read-only", }, { m: v1.VolumeMount{Name: "rro-if-possible", ReadOnly: false, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyIfPossible)}, runtimeSupportsRRO: false, expected: false, expectedErr: "not read-only", }, { m: v1.VolumeMount{Name: "rro", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyEnabled)}, runtimeSupportsRRO: true, expected: true, expectedErr: "", }, { m: v1.VolumeMount{Name: "rro", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyEnabled), MountPropagation: ptr.To(v1.MountPropagationNone)}, runtimeSupportsRRO: true, expected: true, expectedErr: "", }, { m: v1.VolumeMount{Name: "rro", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyEnabled), MountPropagation: ptr.To(v1.MountPropagationHostToContainer)}, runtimeSupportsRRO: true, expected: false, expectedErr: "not compatible with propagation", }, { m: v1.VolumeMount{Name: "rro", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyEnabled), MountPropagation: ptr.To(v1.MountPropagationBidirectional)}, runtimeSupportsRRO: true, expected: false, expectedErr: "not compatible with propagation", }, { m: v1.VolumeMount{Name: "rro", RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyEnabled)}, runtimeSupportsRRO: true, expected: false, expectedErr: "not read-only", }, { m: v1.VolumeMount{Name: "rro", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyEnabled)}, runtimeSupportsRRO: false, expected: false, expectedErr: "not supported by the runtime", }, { m: v1.VolumeMount{Name: "invalid", ReadOnly: true, RecursiveReadOnly: ptr.To(v1.RecursiveReadOnlyMode("foo"))}, runtimeSupportsRRO: true, expected: false, expectedErr: "unknown recursive read-only mode", }, } for _, tc := range testCases { got, err := resolveRecursiveReadOnly(tc.m, tc.runtimeSupportsRRO) t.Logf("resolveRecursiveReadOnly(%+v, %v) = (%v, %v)", tc.m, tc.runtimeSupportsRRO, got, err) if tc.expectedErr == "" { assert.Equal(t, tc.expected, got) assert.NoError(t, err) } else { assert.ErrorContains(t, err, tc.expectedErr) } } }