1 package testutil
2
3 import (
4 "fmt"
5 "strings"
6
7 jsonpatch "github.com/evanphx/json-patch"
8 "github.com/linkerd/linkerd2/pkg/k8s"
9 v1 "k8s.io/api/core/v1"
10 "sigs.k8s.io/yaml"
11 )
12
13 func applyPatch(in string, patchJSON []byte) (string, error) {
14 patch, err := jsonpatch.DecodePatch(patchJSON)
15 if err != nil {
16 return "", err
17 }
18 json, err := yaml.YAMLToJSON([]byte(in))
19 if err != nil {
20 return "", err
21 }
22 patched, err := patch.Apply(json)
23 if err != nil {
24 return "", err
25 }
26 return string(patched), nil
27 }
28
29
30 func PatchDeploy(in string, name string, annotations map[string]string) (string, error) {
31 ops := []string{
32 fmt.Sprintf(`{"op": "replace", "path": "/metadata/name", "value": "%s"}`, name),
33 fmt.Sprintf(`{"op": "replace", "path": "/spec/selector/matchLabels/app", "value": "%s"}`, name),
34 fmt.Sprintf(`{"op": "replace", "path": "/spec/template/metadata/labels/app", "value": "%s"}`, name),
35 }
36
37 if len(annotations) > 0 {
38 ops = append(ops, `{"op": "add", "path": "/spec/template/metadata/annotations", "value": {}}`)
39 for k, v := range annotations {
40 ops = append(ops,
41 fmt.Sprintf(`{"op": "add", "path": "/spec/template/metadata/annotations/%s", "value": "%s"}`, strings.ReplaceAll(k, "/", "~1"), v),
42 )
43 }
44 }
45
46 patchJSON := []byte(fmt.Sprintf("[%s]", strings.Join(ops, ",")))
47
48 return applyPatch(in, patchJSON)
49 }
50
51
52 func GetProxyContainer(containers []v1.Container) *v1.Container {
53 for _, c := range containers {
54 container := c
55 if container.Name == k8s.ProxyContainerName {
56 return &container
57 }
58 }
59
60 return nil
61 }
62
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