Add glide.yaml and vendor deps

vendor/k8s.io/kubernetes/test/e2e/util_iperf.go

@@ -0,0 +1,105 @@
+/*
+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 e2e
+
+// Tests network performance using iperf or other containers.
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"k8s.io/kubernetes/test/e2e/framework"
+)
+
+type IPerfResults struct {
+	BandwidthMap map[string]int64
+}
+
+// IPerfResult struct modelling an iperf record....
+// 20160314154239,172.17.0.3,34152,172.17.0.2,5001,3,0.0-10.0,33843707904,27074774092
+type IPerfResult struct {
+	date          string // field 1 in the csv
+	cli           string // field 2 in the csv
+	cliPort       int64  // ...
+	server        string
+	servPort      int64
+	id            string
+	interval      string
+	transferBits  int64
+	bandwidthBits int64
+}
+
+// Add adds a new result to the Results struct.
+func (i *IPerfResults) Add(ipr *IPerfResult) {
+	if i.BandwidthMap == nil {
+		i.BandwidthMap = map[string]int64{}
+	}
+	i.BandwidthMap[ipr.cli] = ipr.bandwidthBits
+}
+
+// ToTSV exports an easily readable tab delimited format of all IPerfResults.
+func (i *IPerfResults) ToTSV() string {
+	if len(i.BandwidthMap) < 1 {
+		framework.Logf("Warning: no data in bandwidth map")
+	}
+
+	var buffer bytes.Buffer
+	for node, bandwidth := range i.BandwidthMap {
+		asJson, _ := json.Marshal(node)
+		buffer.WriteString("\t " + string(asJson) + "\t " + fmt.Sprintf("%E", float64(bandwidth)))
+	}
+	return buffer.String()
+}
+
+// NewIPerf parses an IPerf CSV output line into an IPerfResult.
+func NewIPerf(csvLine string) *IPerfResult {
+	slice := StrSlice(strings.Split(csvLine, ","))
+	if len(slice) != 9 {
+		framework.Failf("Incorrect fields in the output: %v (%v out of 9)", slice, len(slice))
+	}
+	i := IPerfResult{}
+	i.date = slice.get(0)
+	i.cli = slice.get(1)
+	i.cliPort = intOrFail("client port", slice.get(2))
+	i.server = slice.get(3)
+	i.servPort = intOrFail("server port", slice.get(4))
+	i.id = slice.get(5)
+	i.interval = slice.get(6)
+	i.transferBits = intOrFail("transfer port", slice.get(7))
+	i.bandwidthBits = intOrFail("bandwidth port", slice.get(8))
+	return &i
+}
+
+type StrSlice []string
+
+func (s StrSlice) get(i int) string {
+	if i >= 0 && i < len(s) {
+		return s[i]
+	}
+	return ""
+}
+
+// intOrFail is a convenience function for parsing integers.
+func intOrFail(debugName string, rawValue string) int64 {
+	value, err := strconv.ParseInt(rawValue, 10, 64)
+	if err != nil {
+		framework.Failf("Failed parsing value %v from the string '%v' as an integer", debugName, rawValue)
+	}
+	return value
+}