grab.go

Documentation: k8s.io/kubernetes/test/e2e/framework/metrics

     1  /*
     2  Copyright 2015 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package metrics
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/onsi/ginkgo/v2"
    23  
    24  	"k8s.io/kubernetes/test/e2e/framework"
    25  )
    26  
    27  func GrabBeforeEach(ctx context.Context, f *framework.Framework) (result *Collection) {
    28  	gatherMetricsAfterTest := framework.TestContext.GatherMetricsAfterTest == "true" || framework.TestContext.GatherMetricsAfterTest == "master"
    29  	if !gatherMetricsAfterTest || !framework.TestContext.IncludeClusterAutoscalerMetrics {
    30  		return nil
    31  	}
    32  
    33  	ginkgo.By("Gathering metrics before test", func() {
    34  		grabber, err := NewMetricsGrabber(ctx, f.ClientSet, f.KubemarkExternalClusterClientSet, f.ClientConfig(), !framework.ProviderIs("kubemark"), false, false, false, framework.TestContext.IncludeClusterAutoscalerMetrics, false)
    35  		if err != nil {
    36  			framework.Logf("Failed to create MetricsGrabber (skipping ClusterAutoscaler metrics gathering before test): %v", err)
    37  			return
    38  		}
    39  		metrics, err := grabber.Grab(ctx)
    40  		if err != nil {
    41  			framework.Logf("MetricsGrabber failed to grab CA metrics before test (skipping metrics gathering): %v", err)
    42  			return
    43  		}
    44  		framework.Logf("Gathered ClusterAutoscaler metrics before test")
    45  		result = &metrics
    46  	})
    47  
    48  	return
    49  }
    50  
    51  func GrabAfterEach(ctx context.Context, f *framework.Framework, before *Collection) {
    52  	if framework.TestContext.GatherMetricsAfterTest == "false" {
    53  		return
    54  	}
    55  
    56  	ginkgo.By("Gathering metrics after test", func() {
    57  		// Grab apiserver, scheduler, controller-manager metrics and (optionally) nodes' kubelet metrics.
    58  		grabMetricsFromKubelets := framework.TestContext.GatherMetricsAfterTest != "master" && !framework.ProviderIs("kubemark")
    59  		grabber, err := NewMetricsGrabber(ctx, f.ClientSet, f.KubemarkExternalClusterClientSet, f.ClientConfig(), grabMetricsFromKubelets, true, true, true, framework.TestContext.IncludeClusterAutoscalerMetrics, false)
    60  		if err != nil {
    61  			framework.Logf("Failed to create MetricsGrabber (skipping metrics gathering): %v", err)
    62  			return
    63  		}
    64  		received, err := grabber.Grab(ctx)
    65  		if err != nil {
    66  			framework.Logf("MetricsGrabber failed to grab some of the metrics: %v", err)
    67  			return
    68  		}
    69  		if before == nil {
    70  			before = &Collection{}
    71  		}
    72  		(*ComponentCollection)(&received).ComputeClusterAutoscalerMetricsDelta(*before)
    73  		f.TestSummaries = append(f.TestSummaries, (*ComponentCollection)(&received))
    74  	})
    75  }
    76
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