Switch to github.com/golang/dep for vendoring

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

vendor/k8s.io/kubernetes/pkg/metrics/BUILD

@@ -0,0 +1,45 @@
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "api_server_metrics.go",
+        "controller_manager_metrics.go",
+        "generic_metrics.go",
+        "kubelet_metrics.go",
+        "metrics_grabber.go",
+        "scheduler_metrics.go",
+    ],
+    tags = ["automanaged"],
+    deps = [
+        "//pkg/api:go_default_library",
+        "//pkg/api/v1:go_default_library",
+        "//pkg/client/clientset_generated/clientset:go_default_library",
+        "//pkg/fields:go_default_library",
+        "//pkg/master/ports:go_default_library",
+        "//pkg/util/system:go_default_library",
+        "//vendor:github.com/golang/glog",
+        "//vendor:github.com/prometheus/common/expfmt",
+        "//vendor:github.com/prometheus/common/model",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/metrics/api_server_metrics.go

@@ -0,0 +1,44 @@
+/*
+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
+
+type ApiServerMetrics Metrics
+
+func (m *ApiServerMetrics) Equal(o ApiServerMetrics) bool {
+	return (*Metrics)(m).Equal(Metrics(o))
+}
+
+func NewApiServerMetrics() ApiServerMetrics {
+	result := NewMetrics()
+	return ApiServerMetrics(result)
+}
+
+func parseApiServerMetrics(data string) (ApiServerMetrics, error) {
+	result := NewApiServerMetrics()
+	if err := parseMetrics(data, (*Metrics)(&result)); err != nil {
+		return ApiServerMetrics{}, err
+	}
+	return result, nil
+}
+
+func (g *MetricsGrabber) getMetricsFromApiServer() (string, error) {
+	rawOutput, err := g.client.Core().RESTClient().Get().RequestURI("/metrics").Do().Raw()
+	if err != nil {
+		return "", err
+	}
+	return string(rawOutput), nil
+}

vendor/k8s.io/kubernetes/pkg/metrics/controller_manager_metrics.go

@@ -0,0 +1,36 @@
+/*
+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
+
+type ControllerManagerMetrics Metrics
+
+func (m *ControllerManagerMetrics) Equal(o ControllerManagerMetrics) bool {
+	return (*Metrics)(m).Equal(Metrics(o))
+}
+
+func NewControllerManagerMetrics() ControllerManagerMetrics {
+	result := NewMetrics()
+	return ControllerManagerMetrics(result)
+}
+
+func parseControllerManagerMetrics(data string) (ControllerManagerMetrics, error) {
+	result := NewControllerManagerMetrics()
+	if err := parseMetrics(data, (*Metrics)(&result)); err != nil {
+		return ControllerManagerMetrics{}, err
+	}
+	return result, nil
+}

vendor/k8s.io/kubernetes/pkg/metrics/generic_metrics.go

@@ -0,0 +1,113 @@
+/*
+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 (
+	"fmt"
+	"io"
+	"reflect"
+	"strings"
+
+	"github.com/golang/glog"
+	"github.com/prometheus/common/expfmt"
+	"github.com/prometheus/common/model"
+)
+
+type Metrics map[string]model.Samples
+
+func (m *Metrics) Equal(o Metrics) bool {
+	leftKeySet := []string{}
+	rightKeySet := []string{}
+	for k := range *m {
+		leftKeySet = append(leftKeySet, k)
+	}
+	for k := range o {
+		rightKeySet = append(rightKeySet, k)
+	}
+	if !reflect.DeepEqual(leftKeySet, rightKeySet) {
+		return false
+	}
+	for _, k := range leftKeySet {
+		if !(*m)[k].Equal(o[k]) {
+			return false
+		}
+	}
+	return true
+}
+
+func PrintSample(sample *model.Sample) string {
+	buf := make([]string, 0)
+	// Id is a VERY special label. For 'normal' container it's usless, but it's necessary
+	// for 'system' containers (e.g. /docker-daemon, /kubelet, etc.). We know if that's the
+	// case by checking if there's a label "kubernetes_container_name" present. It's hacky
+	// but it works...
+	_, normalContainer := sample.Metric["kubernetes_container_name"]
+	for k, v := range sample.Metric {
+		if strings.HasPrefix(string(k), "__") {
+			continue
+		}
+
+		if string(k) == "id" && normalContainer {
+			continue
+		}
+		buf = append(buf, fmt.Sprintf("%v=%v", string(k), v))
+	}
+	return fmt.Sprintf("[%v] = %v", strings.Join(buf, ","), sample.Value)
+}
+
+func NewMetrics() Metrics {
+	result := make(Metrics)
+	return result
+}
+
+func parseMetrics(data string, output *Metrics) error {
+	dec := expfmt.NewDecoder(strings.NewReader(data), expfmt.FmtText)
+	decoder := expfmt.SampleDecoder{
+		Dec:  dec,
+		Opts: &expfmt.DecodeOptions{},
+	}
+
+	for {
+		var v model.Vector
+		if err := decoder.Decode(&v); err != nil {
+			if err == io.EOF {
+				// Expected loop termination condition.
+				return nil
+			}
+			glog.Warningf("Invalid Decode. Skipping.")
+			continue
+		}
+		for _, metric := range v {
+			name := string(metric.Metric[model.MetricNameLabel])
+			(*output)[name] = append((*output)[name], metric)
+		}
+	}
+}
+
+func (g *MetricsGrabber) getMetricsFromPod(podName string, namespace string, port int) (string, error) {
+	rawOutput, err := g.client.Core().RESTClient().Get().
+		Prefix("proxy").
+		Namespace(namespace).
+		Resource("pods").
+		Name(fmt.Sprintf("%v:%v", podName, port)).
+		Suffix("metrics").
+		Do().Raw()
+	if err != nil {
+		return "", err
+	}
+	return string(rawOutput), nil
+}

vendor/k8s.io/kubernetes/pkg/metrics/kubelet_metrics.go

@@ -0,0 +1,85 @@
+/*
+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 (
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"time"
+)
+
+type KubeletMetrics Metrics
+
+func (m *KubeletMetrics) Equal(o KubeletMetrics) bool {
+	return (*Metrics)(m).Equal(Metrics(o))
+}
+
+func NewKubeletMetrics() KubeletMetrics {
+	result := NewMetrics()
+	return KubeletMetrics(result)
+}
+
+// GrabKubeletMetricsWithoutProxy retrieve metrics from the kubelet on the given node using a simple GET over http.
+// Currently only used in integration tests.
+func GrabKubeletMetricsWithoutProxy(nodeName string) (KubeletMetrics, error) {
+	metricsEndpoint := "http://%s/metrics"
+	resp, err := http.Get(fmt.Sprintf(metricsEndpoint, nodeName))
+	if err != nil {
+		return KubeletMetrics{}, err
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return KubeletMetrics{}, err
+	}
+	return parseKubeletMetrics(string(body))
+}
+
+func parseKubeletMetrics(data string) (KubeletMetrics, error) {
+	result := NewKubeletMetrics()
+	if err := parseMetrics(data, (*Metrics)(&result)); err != nil {
+		return KubeletMetrics{}, err
+	}
+	return result, nil
+}
+
+func (g *MetricsGrabber) getMetricsFromNode(nodeName string, kubeletPort int) (string, error) {
+	// There's a problem with timing out during proxy. Wrapping this in a goroutine to prevent deadlock.
+	// Hanging goroutine will be leaked.
+	finished := make(chan struct{})
+	var err error
+	var rawOutput []byte
+	go func() {
+		rawOutput, err = g.client.Core().RESTClient().Get().
+			Prefix("proxy").
+			Resource("nodes").
+			Name(fmt.Sprintf("%v:%v", nodeName, kubeletPort)).
+			Suffix("metrics").
+			Do().Raw()
+		finished <- struct{}{}
+	}()
+	select {
+	case <-time.After(ProxyTimeout):
+		return "", fmt.Errorf("Timed out when waiting for proxy to gather metrics from %v", nodeName)
+	case <-finished:
+		if err != nil {
+			return "", err
+		}
+		return string(rawOutput), nil
+	}
+}

vendor/k8s.io/kubernetes/pkg/metrics/metrics_grabber.go

@@ -0,0 +1,188 @@
+/*
+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 (
+	"fmt"
+	"time"
+
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
+	"k8s.io/kubernetes/pkg/fields"
+	"k8s.io/kubernetes/pkg/master/ports"
+	"k8s.io/kubernetes/pkg/util/system"
+
+	"github.com/golang/glog"
+)
+
+const (
+	ProxyTimeout = 2 * time.Minute
+)
+
+type MetricsCollection struct {
+	ApiServerMetrics         ApiServerMetrics
+	ControllerManagerMetrics ControllerManagerMetrics
+	KubeletMetrics           map[string]KubeletMetrics
+	SchedulerMetrics         SchedulerMetrics
+}
+
+type MetricsGrabber struct {
+	client                    clientset.Interface
+	grabFromApiServer         bool
+	grabFromControllerManager bool
+	grabFromKubelets          bool
+	grabFromScheduler         bool
+	masterName                string
+	registeredMaster          bool
+}
+
+func NewMetricsGrabber(c clientset.Interface, kubelets bool, scheduler bool, controllers bool, apiServer bool) (*MetricsGrabber, error) {
+	registeredMaster := false
+	masterName := ""
+	nodeList, err := c.Core().Nodes().List(v1.ListOptions{})
+	if err != nil {
+		return nil, err
+	}
+	if len(nodeList.Items) < 1 {
+		glog.Warning("Can't find any Nodes in the API server to grab metrics from")
+	}
+	for _, node := range nodeList.Items {
+		if system.IsMasterNode(node.Name) {
+			registeredMaster = true
+			masterName = node.Name
+			break
+		}
+	}
+	if !registeredMaster {
+		scheduler = false
+		controllers = false
+		glog.Warningf("Master node is not registered. Grabbing metrics from Scheduler and ControllerManager is disabled.")
+	}
+
+	return &MetricsGrabber{
+		client:                    c,
+		grabFromApiServer:         apiServer,
+		grabFromControllerManager: controllers,
+		grabFromKubelets:          kubelets,
+		grabFromScheduler:         scheduler,
+		masterName:                masterName,
+		registeredMaster:          registeredMaster,
+	}, nil
+}
+
+func (g *MetricsGrabber) GrabFromKubelet(nodeName string) (KubeletMetrics, error) {
+	nodes, err := g.client.Core().Nodes().List(v1.ListOptions{FieldSelector: fields.Set{api.ObjectNameField: nodeName}.AsSelector().String()})
+	if err != nil {
+		return KubeletMetrics{}, err
+	}
+	if len(nodes.Items) != 1 {
+		return KubeletMetrics{}, fmt.Errorf("Error listing nodes with name %v, got %v", nodeName, nodes.Items)
+	}
+	kubeletPort := nodes.Items[0].Status.DaemonEndpoints.KubeletEndpoint.Port
+	return g.grabFromKubeletInternal(nodeName, int(kubeletPort))
+}
+
+func (g *MetricsGrabber) grabFromKubeletInternal(nodeName string, kubeletPort int) (KubeletMetrics, error) {
+	if kubeletPort <= 0 || kubeletPort > 65535 {
+		return KubeletMetrics{}, fmt.Errorf("Invalid Kubelet port %v. Skipping Kubelet's metrics gathering.", kubeletPort)
+	}
+	output, err := g.getMetricsFromNode(nodeName, int(kubeletPort))
+	if err != nil {
+		return KubeletMetrics{}, err
+	}
+	return parseKubeletMetrics(output)
+}
+
+func (g *MetricsGrabber) GrabFromScheduler() (SchedulerMetrics, error) {
+	if !g.registeredMaster {
+		return SchedulerMetrics{}, fmt.Errorf("Master's Kubelet is not registered. Skipping Scheduler's metrics gathering.")
+	}
+	output, err := g.getMetricsFromPod(fmt.Sprintf("%v-%v", "kube-scheduler", g.masterName), api.NamespaceSystem, ports.SchedulerPort)
+	if err != nil {
+		return SchedulerMetrics{}, err
+	}
+	return parseSchedulerMetrics(output)
+}
+
+func (g *MetricsGrabber) GrabFromControllerManager() (ControllerManagerMetrics, error) {
+	if !g.registeredMaster {
+		return ControllerManagerMetrics{}, fmt.Errorf("Master's Kubelet is not registered. Skipping ControllerManager's metrics gathering.")
+	}
+	output, err := g.getMetricsFromPod(fmt.Sprintf("%v-%v", "kube-controller-manager", g.masterName), api.NamespaceSystem, ports.ControllerManagerPort)
+	if err != nil {
+		return ControllerManagerMetrics{}, err
+	}
+	return parseControllerManagerMetrics(output)
+}
+
+func (g *MetricsGrabber) GrabFromApiServer() (ApiServerMetrics, error) {
+	output, err := g.getMetricsFromApiServer()
+	if err != nil {
+		return ApiServerMetrics{}, nil
+	}
+	return parseApiServerMetrics(output)
+}
+
+func (g *MetricsGrabber) Grab() (MetricsCollection, error) {
+	result := MetricsCollection{}
+	var errs []error
+	if g.grabFromApiServer {
+		metrics, err := g.GrabFromApiServer()
+		if err != nil {
+			errs = append(errs, err)
+		} else {
+			result.ApiServerMetrics = metrics
+		}
+	}
+	if g.grabFromScheduler {
+		metrics, err := g.GrabFromScheduler()
+		if err != nil {
+			errs = append(errs, err)
+		} else {
+			result.SchedulerMetrics = metrics
+		}
+	}
+	if g.grabFromControllerManager {
+		metrics, err := g.GrabFromControllerManager()
+		if err != nil {
+			errs = append(errs, err)
+		} else {
+			result.ControllerManagerMetrics = metrics
+		}
+	}
+	if g.grabFromKubelets {
+		result.KubeletMetrics = make(map[string]KubeletMetrics)
+		nodes, err := g.client.Core().Nodes().List(v1.ListOptions{})
+		if err != nil {
+			errs = append(errs, err)
+		} else {
+			for _, node := range nodes.Items {
+				kubeletPort := node.Status.DaemonEndpoints.KubeletEndpoint.Port
+				metrics, err := g.grabFromKubeletInternal(node.Name, int(kubeletPort))
+				if err != nil {
+					errs = append(errs, err)
+				}
+				result.KubeletMetrics[node.Name] = metrics
+			}
+		}
+	}
+	if len(errs) > 0 {
+		return MetricsCollection{}, fmt.Errorf("Errors while grabbing metrics: %v", errs)
+	}
+	return result, nil
+}

vendor/k8s.io/kubernetes/pkg/metrics/scheduler_metrics.go

@@ -0,0 +1,36 @@
+/*
+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
+
+type SchedulerMetrics Metrics
+
+func (m *SchedulerMetrics) Equal(o SchedulerMetrics) bool {
+	return (*Metrics)(m).Equal(Metrics(o))
+}
+
+func NewSchedulerMetrics() SchedulerMetrics {
+	result := NewMetrics()
+	return SchedulerMetrics(result)
+}
+
+func parseSchedulerMetrics(data string) (SchedulerMetrics, error) {
+	result := NewSchedulerMetrics()
+	if err := parseMetrics(data, (*Metrics)(&result)); err != nil {
+		return SchedulerMetrics{}, err
+	}
+	return result, nil
+}