Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/test/integration/metrics/metrics_test.go

@@ -0,0 +1,126 @@
+/*
+Copyright 2015 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 metrics
+
+import (
+	"bufio"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"runtime"
+	"testing"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	clientset "k8s.io/client-go/kubernetes"
+	restclient "k8s.io/client-go/rest"
+	"k8s.io/kubernetes/test/integration/framework"
+
+	"github.com/golang/glog"
+	"github.com/golang/protobuf/proto"
+	prometheuspb "github.com/prometheus/client_model/go"
+)
+
+const scrapeRequestHeader = "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=compact-text"
+
+func scrapeMetrics(s *httptest.Server) ([]*prometheuspb.MetricFamily, error) {
+	req, err := http.NewRequest("GET", s.URL+"/metrics", nil)
+	if err != nil {
+		return nil, fmt.Errorf("Unable to create http request: %v", err)
+	}
+	// Ask the prometheus exporter for its text protocol buffer format, since it's
+	// much easier to parse than its plain-text format. Don't use the serialized
+	// proto representation since it uses a non-standard varint delimiter between
+	// metric families.
+	req.Header.Add("Accept", scrapeRequestHeader)
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("Unable to contact metrics endpoint of master: %v", err)
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("Non-200 response trying to scrape metrics from master: %v", resp)
+	}
+
+	// Each line in the response body should contain all the data for a single metric.
+	var metrics []*prometheuspb.MetricFamily
+	scanner := bufio.NewScanner(resp.Body)
+	for scanner.Scan() {
+		var metric prometheuspb.MetricFamily
+		if err := proto.UnmarshalText(scanner.Text(), &metric); err != nil {
+			return nil, fmt.Errorf("Failed to unmarshal line of metrics response: %v", err)
+		}
+		glog.V(4).Infof("Got metric %q", metric.GetName())
+		metrics = append(metrics, &metric)
+	}
+	return metrics, nil
+}
+
+func checkForExpectedMetrics(t *testing.T, metrics []*prometheuspb.MetricFamily, expectedMetrics []string) {
+	foundMetrics := make(map[string]bool)
+	for _, metric := range metrics {
+		foundMetrics[metric.GetName()] = true
+	}
+	for _, expected := range expectedMetrics {
+		if _, found := foundMetrics[expected]; !found {
+			t.Errorf("Master metrics did not include expected metric %q", expected)
+		}
+	}
+}
+
+func TestMasterProcessMetrics(t *testing.T) {
+	if runtime.GOOS == "darwin" || runtime.GOOS == "windows" {
+		t.Skipf("not supported on GOOS=%s", runtime.GOOS)
+	}
+
+	_, s, closeFn := framework.RunAMaster(nil)
+	defer closeFn()
+
+	metrics, err := scrapeMetrics(s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkForExpectedMetrics(t, metrics, []string{
+		"process_start_time_seconds",
+		"process_cpu_seconds_total",
+		"process_open_fds",
+		"process_resident_memory_bytes",
+	})
+}
+
+func TestApiserverMetrics(t *testing.T) {
+	_, s, closeFn := framework.RunAMaster(nil)
+	defer closeFn()
+
+	// Make a request to the apiserver to ensure there's at least one data point
+	// for the metrics we're expecting -- otherwise, they won't be exported.
+	client := clientset.NewForConfigOrDie(&restclient.Config{Host: s.URL, ContentConfig: restclient.ContentConfig{GroupVersion: &schema.GroupVersion{Group: "", Version: "v1"}}})
+	if _, err := client.Core().Pods(metav1.NamespaceDefault).List(metav1.ListOptions{}); err != nil {
+		t.Fatalf("unexpected error getting pods: %v", err)
+	}
+
+	metrics, err := scrapeMetrics(s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkForExpectedMetrics(t, metrics, []string{
+		"apiserver_request_count",
+		"apiserver_request_latencies",
+	})
+}