Initial node performance testing framework.

test/e2e_node/perf/workloads/utils.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2018 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 workloads
+
+import (
+	"fmt"
+	"os/exec"
+	"regexp"
+	"strings"
+)
+
+func runCmd(cmd string, args []string) error {
+	err := exec.Command(cmd, args...).Run()
+	return err
+}
+
+func getMatchingLineFromLog(log string, pattern string) (line string, err error) {
+	regex, err := regexp.Compile(pattern)
+	if err != nil {
+		return line, fmt.Errorf("failed to compile regexp %v: %v", pattern, err)
+	}
+
+	logLines := strings.Split(log, "\n")
+	for _, line := range logLines {
+		if regex.MatchString(line) {
+			return line, nil
+		}
+	}
+
+	return line, fmt.Errorf("line with pattern %v not found in log", pattern)
+}