Example #1
0
// Instantiates a Framework. Cleanup *must* be called. Class is thread-compatible.
// All framework actions report fatal errors on the t specified at creation time.
//
// Typical use:
//
// func TestFoo(t *testing.T) {
// 	fm := framework.New(t)
// 	defer fm.Cleanup()
//      ... actual test ...
// }
func New(t *testing.T) Framework {
	// All integration tests are large.
	if testing.Short() {
		t.Skip("Skipping framework test in short mode")
	}

	// Try to see if non-localhost hosts are GCE instances.
	var gceInstanceName string
	hostname := *host
	if hostname != "localhost" {
		gceInstanceName = hostname
		gceIp, err := common.GetGceIp(hostname)
		if err == nil {
			hostname = gceIp
		}
	}

	fm := &realFramework{
		hostname: HostnameInfo{
			Host:            hostname,
			Port:            *port,
			GceInstanceName: gceInstanceName,
		},
		t:        t,
		cleanups: make([]func(), 0),
	}
	fm.shellActions = shellActions{
		fm: fm,
	}
	fm.dockerActions = dockerActions{
		fm: fm,
	}

	return fm
}
Example #2
0
func PushAndRunTests(host, testDir string) error {
	// Push binary.
	glog.Infof("Pushing cAdvisor binary to %q...", host)
	args := common.GetGCComputeArgs("ssh", host, "--", "mkdir", "-p", testDir)
	err := RunCommand("gcloud", args...)
	if err != nil {
		return fmt.Errorf("failed to make remote testing directory: %v", err)
	}
	defer func() {
		args := common.GetGCComputeArgs("ssh", host, "--", "rm", "-rf", testDir)
		err := RunCommand("gcloud", args...)
		if err != nil {
			glog.Errorf("Failed to cleanup test directory: %v", err)
		}
	}()
	args = common.GetGCComputeArgs("copy-files", cadvisorBinary, fmt.Sprintf("%s:%s", host, testDir))
	err = RunCommand("gcloud", args...)
	if err != nil {
		return fmt.Errorf("failed to copy binary: %v", err)
	}

	// TODO(vmarmol): Get logs in case of failures.
	// Start cAdvisor.
	glog.Infof("Running cAdvisor on %q...", host)
	portStr := strconv.Itoa(*port)
	errChan := make(chan error)
	go func() {
		args = common.GetGCComputeArgs("ssh", host, "--", fmt.Sprintf("sudo %s --port %s --logtostderr", path.Join(testDir, cadvisorBinary), portStr))
		err = RunCommand("gcloud", args...)
		if err != nil {
			errChan <- fmt.Errorf("error running cAdvisor: %v", err)
		}
	}()
	defer func() {
		args = common.GetGCComputeArgs("ssh", host, "--", "sudo", "pkill", cadvisorBinary)
		err := RunCommand("gcloud", args...)
		if err != nil {
			glog.Errorf("Failed to cleanup: %v", err)
		}
	}()

	ipAddress, err := common.GetGceIp(host)
	if err != nil {
		return fmt.Errorf("failed to get GCE IP: %v", err)
	}

	// Wait for cAdvisor to come up.
	endTime := time.Now().Add(*cadvisorTimeout)
	done := false
	for endTime.After(time.Now()) && !done {
		select {
		case err := <-errChan:
			// Quit early if there was an error.
			return err
		case <-time.After(500 * time.Millisecond):
			// Stop waiting when cAdvisor is healthy..
			resp, err := http.Get(fmt.Sprintf("http://%s:%s/healthz", ipAddress, portStr))
			if err == nil && resp.StatusCode == http.StatusOK {
				done = true
				break
			}
		}
	}
	if !done {
		return fmt.Errorf("timed out waiting for cAdvisor to come up at host %q", host)
	}

	// Run the tests.
	glog.Infof("Running integration tests targeting %q...", host)
	err = RunCommand("godep", "go", "test", "github.com/google/cadvisor/integration/tests/...", "--host", host, "--port", portStr)
	if err != nil {
		return err
	}

	return nil
}
Example #3
0
func PushAndRunTests(host, testDir string) error {
	// Push binary.
	glog.Infof("Pushing cAdvisor binary to %q...", host)
	args := common.GetGCComputeArgs("ssh", host, "--", "mkdir", "-p", testDir)
	err := RunCommand("gcloud", args...)
	if err != nil {
		return fmt.Errorf("failed to make remote testing directory: %v", err)
	}
	defer func() {
		args := common.GetGCComputeArgs("ssh", host, "--", "rm", "-rf", testDir)
		err := RunCommand("gcloud", args...)
		if err != nil {
			glog.Errorf("Failed to cleanup test directory: %v", err)
		}
	}()
	args = common.GetGCComputeArgs("copy-files", cadvisorBinary, fmt.Sprintf("%s:%s", host, testDir))
	err = RunCommand("gcloud", args...)
	if err != nil {
		return fmt.Errorf("failed to copy binary: %v", err)
	}

	// Start cAdvisor.
	glog.Infof("Running cAdvisor on %q...", host)
	portStr := strconv.Itoa(*port)
	errChan := make(chan error)
	go func() {
		args = common.GetGCComputeArgs("ssh", host, "--", fmt.Sprintf("sudo %s --port %s --logtostderr &> %s/log.txt", path.Join(testDir, cadvisorBinary), portStr, testDir))
		err = RunCommand("gcloud", args...)
		if err != nil {
			errChan <- fmt.Errorf("error running cAdvisor: %v", err)
		}
	}()
	defer func() {
		args = common.GetGCComputeArgs("ssh", host, "--", "sudo", "pkill", cadvisorBinary)
		err := RunCommand("gcloud", args...)
		if err != nil {
			glog.Errorf("Failed to cleanup: %v", err)
		}
	}()

	ipAddress, err := common.GetGceIp(host)
	if err != nil {
		return fmt.Errorf("failed to get GCE IP: %v", err)
	}

	// Wait for cAdvisor to come up.
	endTime := time.Now().Add(*cadvisorTimeout)
	done := false
	for endTime.After(time.Now()) && !done {
		select {
		case err := <-errChan:
			// Quit early if there was an error.
			return err
		case <-time.After(500 * time.Millisecond):
			// Stop waiting when cAdvisor is healthy..
			resp, err := http.Get(fmt.Sprintf("http://%s:%s/healthz", ipAddress, portStr))
			if err == nil && resp.StatusCode == http.StatusOK {
				done = true
				break
			}
		}
	}
	if !done {
		return fmt.Errorf("timed out waiting for cAdvisor to come up at host %q", host)
	}

	// Get attributes for debugging purposes.
	attributes, err := getAttributes(ipAddress, portStr)
	if err != nil {
		return fmt.Errorf("%v - %q", err, host)
	}
	// Run the tests in a retry loop.
	glog.Infof("Running integration tests targeting %q...", host)
	for i := 0; i <= *testRetryCount; i++ {
		// Check if this is a retry
		if i > 0 {
			time.Sleep(time.Second * 15) // Wait 15 seconds before retrying
			glog.Warningf("Retrying (%d of %d) tests on host %s due to error %v", i, *testRetryCount, host, err)
		}
		// Run the command
		err = RunCommand("godep", "go", "test", "github.com/google/cadvisor/integration/tests/...", "--host", host, "--port", portStr)
		if err == nil {
			// On success, break out of retry loop
			break
		}

		// Only retry on test failures caused by these known flaky failure conditions
		if retryRegex == nil || !retryRegex.Match([]byte(err.Error())) {
			glog.Warningf("Skipping retry for tests on host %s because error is not whitelisted: %s", host, err.Error())
			break
		}
	}
	if err != nil {
		// Copy logs from the host
		args = common.GetGCComputeArgs("copy-files", fmt.Sprintf("%s:%s/log.txt", host, testDir), "./")
		// Declare new error or it will get shadowed by logs, err := <>  and we won't be able to unset it from nil
		err2 := RunCommand("gcloud", args...)
		if err2 != nil {
			return fmt.Errorf("error fetching logs: %v for %v", err2, err)
		}
		defer os.Remove("./log.txt")
		logs, err2 := ioutil.ReadFile("./log.txt")
		if err2 != nil {
			return fmt.Errorf("error reading local log file: %v for %v", err2, err)
		}
		glog.Errorf("----------------------\nLogs from Host: %q\n%v\n", host, string(logs))
		err = fmt.Errorf("error on host %s: %v\n%+v", host, err, attributes)
	}
	return err
}