Add glide.yaml and vendor deps

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
+}