Make resource gatherer get data about etcd resource usage in kubemark setup

test/e2e/framework/get-kubemark-resource-usage.go

@@ -28,15 +28,24 @@ type KubemarkResourceUsage struct {
 	CPUUsageInCores         float64
 }
 
+func getMasterUsageByPrefix(prefix string) (string, error) {
+	sshResult, err := SSH(fmt.Sprintf("ps ax -o %%cpu,rss,command | tail -n +2 | grep %v | sed 's/\\s+/ /g'", prefix), GetMasterHost()+":22", TestContext.Provider)
+	if err != nil {
+		return "", err
+	}
+	return sshResult.Stdout, nil
+}
+
 // TODO: figure out how to move this to kubemark directory (need to factor test SSH out of e2e framework)
 func GetKubemarkMasterComponentsResourceUsage() map[string]*KubemarkResourceUsage {
 	result := make(map[string]*KubemarkResourceUsage)
-	sshResult, err := SSH("ps ax -o %cpu,rss,command | tail -n +2 | grep kube | sed 's/\\s+/ /g'", GetMasterHost()+":22", TestContext.Provider)
+	// Get kuberenetes component resource usage
+	sshResult, err := getMasterUsageByPrefix("kube")
 	if err != nil {
 		Logf("Error when trying to SSH to master machine. Skipping probe")
 		return nil
 	}
-	scanner := bufio.NewScanner(strings.NewReader(sshResult.Stdout))
+	scanner := bufio.NewScanner(strings.NewReader(sshResult))
 	for scanner.Scan() {
 		var cpu float64
 		var mem uint64
@@ -48,5 +57,28 @@ func GetKubemarkMasterComponentsResourceUsage() map[string]*KubemarkResourceUsag
 			result[fullName] = &KubemarkResourceUsage{Name: fullName, MemoryWorkingSetInBytes: mem * 1024, CPUUsageInCores: cpu / 100}
 		}
 	}
+	// Get etcd resource usage
+	sshResult, err = getMasterUsageByPrefix("bin/etcd")
+	if err != nil {
+		Logf("Error when trying to SSH to master machine. Skipping probe")
+		return nil
+	}
+	scanner = bufio.NewScanner(strings.NewReader(sshResult))
+	for scanner.Scan() {
+		var cpu float64
+		var mem uint64
+		var etcdKind string
+		fmt.Sscanf(strings.TrimSpace(scanner.Text()), "%f %d /bin/sh -c /usr/local/bin/etcd", &cpu, &mem)
+		dataDirStart := strings.Index(scanner.Text(), "--data-dir")
+		if dataDirStart < 0 {
+			continue
+		}
+		fmt.Sscanf(scanner.Text()[dataDirStart:], "--data-dir=/var/%s", &etcdKind)
+		if etcdKind != "" {
+			// Gatherer expects pod_name/container_name format
+			fullName := "etcd/" + etcdKind
+			result[fullName] = &KubemarkResourceUsage{Name: fullName, MemoryWorkingSetInBytes: mem * 1024, CPUUsageInCores: cpu / 100}
+		}
+	}
 	return result
 }