Merge pull request kubernetes#85029 from serathius/remove-prometheus-test-e2e

Remove references to prometheus is test/e2e

Author: k8s-ci-robot

staging/src/k8s.io/component-base/metrics/BUILD

@@ -94,8 +94,6 @@ package_group(
         "//staging/src/k8s.io/apiserver/pkg/admission/metrics",
         "//staging/src/k8s.io/apiserver/pkg/util/flowcontrol/metrics",
         "//staging/src/k8s.io/component-base/metrics/...",
-        "//test/e2e",
-        "//test/e2e/storage",
         "//test/e2e_node",
         "//vendor/...",
     ],

staging/src/k8s.io/component-base/metrics/testutil/metrics.go

@@ -147,3 +147,34 @@ func ComputeHistogramDelta(before, after model.Samples, label model.LabelName) {
 func makeKey(a, b model.LabelValue) string {
 	return string(a) + "___" + string(b)
 }
+
+// GetMetricValuesForLabel returns value of metric for a given dimension
+func GetMetricValuesForLabel(ms Metrics, metricName, label string) map[string]int64 {
+	samples, found := ms[metricName]
+	result := make(map[string]int64, len(samples))
+	if !found {
+		return result
+	}
+	for _, sample := range samples {
+		count := int64(sample.Value)
+		dimensionName := string(sample.Metric[model.LabelName(label)])
+		result[dimensionName] = count
+	}
+	return result
+}
+
+// ValidateMetrics verifies if every sample of metric has all expected labels
+func ValidateMetrics(metrics Metrics, metricName string, expectedLabels ...string) error {
+	samples, ok := metrics[metricName]
+	if !ok {
+		return fmt.Errorf("metric %q was not found in metrics", metricName)
+	}
+	for _, sample := range samples {
+		for _, l := range expectedLabels {
+			if _, ok := sample.Metric[model.LabelName(l)]; !ok {
+				return fmt.Errorf("metric %q is missing label %q, sample: %q", metricName, l, sample.String())
+			}
+		}
+	}
+	return nil
+}

test/e2e/storage/BUILD

@@ -87,7 +87,6 @@ go_library(
         "//vendor/github.com/aws/aws-sdk-go/service/ec2:go_default_library",
         "//vendor/github.com/onsi/ginkgo:go_default_library",
         "//vendor/github.com/onsi/gomega:go_default_library",
-        "//vendor/github.com/prometheus/common/model:go_default_library",
         "//vendor/google.golang.org/api/googleapi:go_default_library",
     ],
 )

test/e2e/storage/volume_metrics.go

@@ -23,7 +23,6 @@ import (
 
 	"github.com/onsi/ginkgo"
 	"github.com/onsi/gomega"
-	"github.com/prometheus/common/model"
 
 	v1 "k8s.io/api/core/v1"
 	storagev1 "k8s.io/api/storage/v1"
@@ -283,8 +282,8 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
 
 		metricKey := "volume_operation_total_seconds_count"
 		dimensions := []string{"operation_name", "plugin_name"}
-		valid := hasValidMetrics(testutil.Metrics(controllerMetrics), metricKey, dimensions...)
-		framework.ExpectEqual(valid, true, "Invalid metric in P/V Controller metrics: %q", metricKey)
+		err = testutil.ValidateMetrics(testutil.Metrics(controllerMetrics), metricKey, dimensions...)
+		framework.ExpectNoError(err, "Invalid metric in P/V Controller metrics: %q", metricKey)
 
 		framework.Logf("Deleting pod %q/%q", pod.Namespace, pod.Name)
 		framework.ExpectNoError(e2epod.DeletePodWithWait(c, pod))
@@ -313,8 +312,8 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
 		// Metrics should have dimensions plugin_name and state available
 		totalVolumesKey := "volume_manager_total_volumes"
 		dimensions := []string{"state", "plugin_name"}
-		valid := hasValidMetrics(testutil.Metrics(kubeMetrics), totalVolumesKey, dimensions...)
-		framework.ExpectEqual(valid, true, "Invalid metric in Volume Manager metrics: %q", totalVolumesKey)
+		err = testutil.ValidateMetrics(testutil.Metrics(kubeMetrics), totalVolumesKey, dimensions...)
+		framework.ExpectNoError(err, "Invalid metric in Volume Manager metrics: %q", totalVolumesKey)
 
 		framework.Logf("Deleting pod %q/%q", pod.Namespace, pod.Name)
 		framework.ExpectNoError(e2epod.DeletePodWithWait(c, pod))
@@ -441,7 +440,7 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
 				// Concretely, we expect the difference of the updated values and original values for each
 				// test suit are equal to expectValues.
 				actualValues := calculateRelativeValues(originMetricValues[i],
-					getPVControllerMetrics(controllerMetrics, metric.name, metric.dimension))
+					testutil.GetMetricValuesForLabel(testutil.Metrics(controllerMetrics), metric.name, metric.dimension))
 				framework.ExpectEqual(actualValues, expectValues, "Wrong pv controller metric %s(%s): wanted %v, got %v",
 					metric.name, metric.dimension, expectValues, actualValues)
 			}
@@ -460,7 +459,7 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
 			framework.ExpectNoError(err, "Error getting c-m metricValues: %v", err)
 			for _, metric := range metrics {
 				originMetricValues = append(originMetricValues,
-					getPVControllerMetrics(controllerMetrics, metric.name, metric.dimension))
+					testutil.GetMetricValuesForLabel(testutil.Metrics(controllerMetrics), metric.name, metric.dimension))
 			}
 		})
 
@@ -696,27 +695,12 @@ func waitForPVControllerSync(metricsGrabber *metrics.Grabber, metricName, dimens
 			framework.Logf("Error fetching controller-manager metrics")
 			return false, err
 		}
-		return len(getPVControllerMetrics(updatedMetrics, metricName, dimension)) > 0, nil
+		return len(testutil.GetMetricValuesForLabel(testutil.Metrics(updatedMetrics), metricName, dimension)) > 0, nil
 	}
 	waitErr := wait.ExponentialBackoff(backoff, verifyMetricFunc)
 	framework.ExpectNoError(waitErr, "Unable to get pv controller metrics")
 }
 
-func getPVControllerMetrics(ms metrics.ControllerManagerMetrics, metricName, dimension string) map[string]int64 {
-	result := make(map[string]int64)
-	for method, samples := range ms {
-		if method != metricName {
-			continue
-		}
-		for _, sample := range samples {
-			count := int64(sample.Value)
-			dimensionName := string(sample.Metric[model.LabelName(dimension)])
-			result[dimensionName] = count
-		}
-	}
-	return result
-}
-
 func calculateRelativeValues(originValues, updatedValues map[string]int64) map[string]int64 {
 	relativeValues := make(map[string]int64)
 	for key, value := range updatedValues {
@@ -733,26 +717,6 @@ func calculateRelativeValues(originValues, updatedValues map[string]int64) map[s
 	return relativeValues
 }
 
-func hasValidMetrics(metrics testutil.Metrics, metricKey string, dimensions ...string) bool {
-	var errCount int
-	framework.Logf("Looking for sample in metric %q", metricKey)
-	samples, ok := metrics[metricKey]
-	if !ok {
-		framework.Logf("Key %q was not found in metrics", metricKey)
-		return false
-	}
-	for _, sample := range samples {
-		framework.Logf("Found sample %q", sample.String())
-		for _, d := range dimensions {
-			if _, ok := sample.Metric[model.LabelName(d)]; !ok {
-				framework.Logf("Error getting dimension %q for metric %q, sample %q", d, metricKey, sample.String())
-				errCount++
-			}
-		}
-	}
-	return errCount == 0
-}
-
 func getStatesMetrics(metricKey string, givenMetrics testutil.Metrics) map[string]map[string]int64 {
 	states := make(map[string]map[string]int64)
 	for _, sample := range givenMetrics[metricKey] {
@@ -776,8 +740,9 @@ func waitForADControllerStatesMetrics(metricsGrabber *metrics.Grabber, metricNam
 			e2eskipper.Skipf("Could not get controller-manager metrics - skipping")
 			return false, err
 		}
-		if !hasValidMetrics(testutil.Metrics(updatedMetrics), metricName, dimensions...) {
-			return false, fmt.Errorf("could not get valid metrics for %q", metricName)
+		err = testutil.ValidateMetrics(testutil.Metrics(updatedMetrics), metricName, dimensions...)
+		if err != nil {
+			return false, fmt.Errorf("could not get valid metrics: %v ", err)
 		}
 		states := getStatesMetrics(metricName, testutil.Metrics(updatedMetrics))
 		for _, name := range stateNames {