// getConformanceDirectory gets node conformance test build directory.
func getConformanceDirectory() (string, error) {
k8sRoot, err := builder.GetK8sRootDir()
if err != nil {
return "", err
}
return filepath.Join(k8sRoot, "test", "e2e_node", "conformance", "build"), nil
}
// SetupTestPackage sets up the test package with binaries k8s required for node e2e tests
func (n *NodeE2ERemote) SetupTestPackage(tardir string) error {
// Build the executables
if err := builder.BuildGo(); err != nil {
return fmt.Errorf("failed to build the depedencies: %v", err)
}
// Make sure we can find the newly built binaries
buildOutputDir, err := builder.GetK8sBuildOutputDir()
if err != nil {
return fmt.Errorf("failed to locate kubernetes build output directory %v", err)
}
// Copy binaries
requiredBins := []string{"kubelet", "e2e_node.test", "ginkgo"}
for _, bin := range requiredBins {
source := filepath.Join(buildOutputDir, bin)
if _, err := os.Stat(source); err != nil {
return fmt.Errorf("failed to locate test binary %s: %v", bin, err)
}
out, err := exec.Command("cp", source, filepath.Join(tardir, bin)).CombinedOutput()
if err != nil {
return fmt.Errorf("failed to copy %q: %v Output: %q", bin, err, out)
}
}
// Include the GCI mounter artifacts in the deployed tarball
k8sDir, err := builder.GetK8sRootDir()
if err != nil {
return fmt.Errorf("Could not find K8s root dir! Err: %v", err)
}
source := filepath.Join(k8sDir, localGCIMounterPath)
// Require the GCI mounter script, we want to make sure the remote test runner stays up to date if the mounter file moves
if _, err := os.Stat(source); err != nil {
return fmt.Errorf("Could not find GCI mounter script at %q! If this script has been (re)moved, please update the e2e node remote test runner accordingly! Err: %v", source, err)
}
bindir := "cluster/gce/gci/mounter"
bin := "mounter"
destdir := filepath.Join(tardir, bindir)
dest := filepath.Join(destdir, bin)
out, err := exec.Command("mkdir", "-p", filepath.Join(tardir, bindir)).CombinedOutput()
if err != nil {
return fmt.Errorf("failed to create directory %q for GCI mounter script. Err: %v. Output:\n%s", destdir, err, out)
}
out, err = exec.Command("cp", source, dest).CombinedOutput()
if err != nil {
return fmt.Errorf("failed to copy GCI mounter script to the archive bin. Err: %v. Output:\n%s", err, out)
}
return nil
}
// updateGCIMounterPath updates kubelet flags to set gci mounter path. This will only take effect for
// GCI image.
func updateGCIMounterPath(args, host, workspace string) (string, error) {
// Determine if tests will run on a GCI node.
output, err := SSH(host, "cat", "/etc/os-release")
if err != nil {
return args, fmt.Errorf("issue detecting node's OS via node's /etc/os-release. Err: %v, Output:\n%s", err, output)
}
if !strings.Contains(output, "ID=gci") {
// This is not a GCI image
return args, nil
}
// If we are testing on a GCI node, we chmod 544 the mounter and specify a different mounter path in the test args.
// We do this here because the local var `workspace` tells us which /tmp/node-e2e-%d is relevant to the current test run.
// Determine if the GCI mounter script exists locally.
k8sDir, err := builder.GetK8sRootDir()
if err != nil {
return args, fmt.Errorf("could not find K8s root dir! Err: %v", err)
}
source := filepath.Join(k8sDir, localGCIMounterPath)
// Require the GCI mounter script, we want to make sure the remote test runner stays up to date if the mounter file moves
if _, err = os.Stat(source); err != nil {
return args, fmt.Errorf("could not find GCI mounter script at %q! If this script has been (re)moved, please update the e2e node remote test runner accordingly! Err: %v", source, err)
}
glog.V(2).Infof("GCI node and GCI mounter both detected, modifying --experimental-mounter-path accordingly")
// Note this implicitly requires the script to be where we expect in the tarball, so if that location changes the error
// here will tell us to update the remote test runner.
mounterPath := filepath.Join(workspace, localGCIMounterPath)
output, err = SSH(host, "sh", "-c", fmt.Sprintf("'chmod 544 %s'", mounterPath))
if err != nil {
return args, fmt.Errorf("unabled to chmod 544 GCI mounter script. Err: %v, Output:\n%s", err, output)
}
// Insert args at beginning of test args, so any values from command line take precedence
args = fmt.Sprintf("--kubelet-flags=--experimental-mounter-path=%s ", mounterPath) + args
return args, nil
}
// CreateTestArchive builds the local source and creates a tar archive e2e_node_test.tar.gz containing
// the binaries k8s required for node e2e tests
func CreateTestArchive() (string, error) {
// Build the executables
if err := builder.BuildGo(); err != nil {
return "", fmt.Errorf("failed to build the depedencies: %v", err)
}
// Make sure we can find the newly built binaries
buildOutputDir, err := builder.GetK8sBuildOutputDir()
if err != nil {
return "", fmt.Errorf("failed to locate kubernetes build output directory %v", err)
}
glog.Infof("Building archive...")
tardir, err := ioutil.TempDir("", "node-e2e-archive")
if err != nil {
return "", fmt.Errorf("failed to create temporary directory %v.", err)
}
defer os.RemoveAll(tardir)
// Copy binaries
requiredBins := []string{"kubelet", "e2e_node.test", "ginkgo"}
for _, bin := range requiredBins {
source := filepath.Join(buildOutputDir, bin)
if _, err := os.Stat(source); err != nil {
return "", fmt.Errorf("failed to locate test binary %s: %v", bin, err)
}
out, err := exec.Command("cp", source, filepath.Join(tardir, bin)).CombinedOutput()
if err != nil {
return "", fmt.Errorf("failed to copy %q: %v Output: %q", bin, err, out)
}
}
// Include the GCI mounter in the deployed tarball
k8sDir, err := builder.GetK8sRootDir()
if err != nil {
return "", fmt.Errorf("Could not find K8s root dir! Err: %v", err)
}
localSource := "cluster/gce/gci/mounter/mounter"
source := filepath.Join(k8sDir, localSource)
// Require the GCI mounter script, we want to make sure the remote test runner stays up to date if the mounter file moves
if _, err := os.Stat(source); err != nil {
return "", fmt.Errorf("Could not find GCI mounter script at %q! If this script has been (re)moved, please update the e2e node remote test runner accordingly! Err: %v", source, err)
}
bindir := "cluster/gce/gci/mounter"
bin := "mounter"
destdir := filepath.Join(tardir, bindir)
dest := filepath.Join(destdir, bin)
out, err := exec.Command("mkdir", "-p", filepath.Join(tardir, bindir)).CombinedOutput()
if err != nil {
return "", fmt.Errorf("failed to create directory %q for GCI mounter script. Err: %v. Output:\n%s", destdir, err, out)
}
out, err = exec.Command("cp", source, dest).CombinedOutput()
if err != nil {
return "", fmt.Errorf("failed to copy GCI mounter script to the archive bin. Err: %v. Output:\n%s", err, out)
}
// Build the tar
out, err = exec.Command("tar", "-zcvf", archiveName, "-C", tardir, ".").CombinedOutput()
if err != nil {
return "", fmt.Errorf("failed to build tar %v. Output:\n%s", err, out)
}
dir, err := os.Getwd()
if err != nil {
return "", fmt.Errorf("failed to get working directory %v.", err)
}
return filepath.Join(dir, archiveName), nil
}
// Returns the command output, whether the exit was ok, and any errors
func RunRemote(archive string, host string, cleanup bool, junitFilePrefix string, setupNode bool, testArgs string, ginkgoFlags string) (string, bool, error) {
if setupNode {
uname, err := user.Current()
if err != nil {
return "", false, fmt.Errorf("could not find username: %v", err)
}
output, err := RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sudo", "usermod", "-a", "-G", "docker", uname.Username)
if err != nil {
return "", false, fmt.Errorf("instance %s not running docker daemon - Command failed: %s", host, output)
}
}
// Create the temp staging directory
glog.Infof("Staging test binaries on %s", host)
tmp := fmt.Sprintf("/tmp/gcloud-e2e-%d", rand.Int31())
_, err := RunSshCommand("ssh", GetHostnameOrIp(host), "--", "mkdir", tmp)
if err != nil {
// Exit failure with the error
return "", false, err
}
if cleanup {
defer func() {
output, err := RunSshCommand("ssh", GetHostnameOrIp(host), "--", "rm", "-rf", tmp)
if err != nil {
glog.Errorf("failed to cleanup tmp directory %s on host %v. Output:\n%s", tmp, err, output)
}
}()
}
// Install the cni plugin.
cniPath := filepath.Join(tmp, CNIDirectory)
if _, err := RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sh", "-c",
getSshCommand(" ; ", fmt.Sprintf("sudo mkdir -p %s", cniPath),
fmt.Sprintf("sudo wget -O - %s | sudo tar -xz -C %s", CNIURL, cniPath))); err != nil {
// Exit failure with the error
return "", false, err
}
// Configure iptables firewall rules
// TODO: consider calling bootstrap script to configure host based on OS
cmd := getSshCommand("&&",
`iptables -L INPUT | grep "Chain INPUT (policy DROP)"`,
"(iptables -C INPUT -w -p TCP -j ACCEPT || iptables -A INPUT -w -p TCP -j ACCEPT)",
"(iptables -C INPUT -w -p UDP -j ACCEPT || iptables -A INPUT -w -p UDP -j ACCEPT)",
"(iptables -C INPUT -w -p ICMP -j ACCEPT || iptables -A INPUT -w -p ICMP -j ACCEPT)")
output, err := RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sudo", "sh", "-c", cmd)
if err != nil {
glog.Errorf("Failed to configured firewall: %v output: %v", err, output)
}
cmd = getSshCommand("&&",
`iptables -L FORWARD | grep "Chain FORWARD (policy DROP)" > /dev/null`,
"(iptables -C FORWARD -w -p TCP -j ACCEPT || iptables -A FORWARD -w -p TCP -j ACCEPT)",
"(iptables -C FORWARD -w -p UDP -j ACCEPT || iptables -A FORWARD -w -p UDP -j ACCEPT)",
"(iptables -C FORWARD -w -p ICMP -j ACCEPT || iptables -A FORWARD -w -p ICMP -j ACCEPT)")
output, err = RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sudo", "sh", "-c", cmd)
if err != nil {
glog.Errorf("Failed to configured firewall: %v output: %v", err, output)
}
// Copy the archive to the staging directory
_, err = RunSshCommand("scp", archive, fmt.Sprintf("%s:%s/", GetHostnameOrIp(host), tmp))
if err != nil {
// Exit failure with the error
return "", false, err
}
// Kill any running node processes
cmd = getSshCommand(" ; ",
"sudo pkill kubelet",
"sudo pkill kube-apiserver",
"sudo pkill etcd",
)
// No need to log an error if pkill fails since pkill will fail if the commands are not running.
// If we are unable to stop existing running k8s processes, we should see messages in the kubelet/apiserver/etcd
// logs about failing to bind the required ports.
glog.Infof("Killing any existing node processes on %s", host)
RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sh", "-c", cmd)
// Extract the archive
cmd = getSshCommand(" && ", fmt.Sprintf("cd %s", tmp), fmt.Sprintf("tar -xzvf ./%s", archiveName))
glog.Infof("Extracting tar on %s", host)
output, err = RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sh", "-c", cmd)
if err != nil {
// Exit failure with the error
return "", false, err
}
// If we are testing on a GCI node, we chmod 544 the mounter and specify a different mounter path in the test args.
// We do this here because the local var `tmp` tells us which /tmp/gcloud-e2e-%d is relevant to the current test run.
// Determine if the GCI mounter script exists locally.
k8sDir, err := builder.GetK8sRootDir()
if err != nil {
return "", false, fmt.Errorf("Could not find K8s root dir! Err: %v", err)
}
localSource := "cluster/gce/gci/mounter/mounter"
source := filepath.Join(k8sDir, localSource)
// Require the GCI mounter script, we want to make sure the remote test runner stays up to date if the mounter file moves
if _, err = os.Stat(source); err != nil {
return "", false, fmt.Errorf("Could not find GCI mounter script at %q! If this script has been (re)moved, please update the e2e node remote test runner accordingly! Err: %v", source, err)
}
// Determine if tests will run on a GCI node.
output, err = RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sh", "-c", "'cat /etc/os-release'")
if err != nil {
glog.Errorf("Issue detecting node's OS via node's /etc/os-release. Err: %v, Output:\n%s", err, output)
return "", false, fmt.Errorf("Issue detecting node's OS via node's /etc/os-release. Err: %v, Output:\n%s", err, output)
}
if strings.Contains(output, "ID=gci") {
// Note this implicitly requires the script to be where we expect in the tarball, so if that location changes the error
// here will tell us to update the remote test runner.
mounterPath := filepath.Join(tmp, "cluster/gce/gci/mounter/mounter")
output, err = RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sh", "-c", fmt.Sprintf("'chmod 544 %s'", mounterPath))
if err != nil {
glog.Errorf("Unable to chmod 544 GCI mounter script. Err: %v, Output:\n%s", err, output)
return "", false, err
}
// Insert args at beginning of testArgs, so any values from command line take precedence
testArgs = fmt.Sprintf("--experimental-mounter-rootfs-path=%s ", mounterRootfsPath) + testArgs
testArgs = fmt.Sprintf("--experimental-mounter-path=%s ", mounterPath) + testArgs
glog.Infof("GCI node and GCI mounter both detected, setting --experimental-mounter-path=%q and --experimental-mounter-rootfs-path=%q accordingly", mounterPath, mounterRootfsPath)
}
// Run the tests
cmd = getSshCommand(" && ",
fmt.Sprintf("cd %s", tmp),
fmt.Sprintf("timeout -k 30s %fs ./ginkgo %s ./e2e_node.test -- --logtostderr --v 4 --node-name=%s --report-dir=%s/results --report-prefix=%s %s",
testTimeoutSeconds.Seconds(), ginkgoFlags, host, tmp, junitFilePrefix, testArgs),
)
aggErrs := []error{}
glog.Infof("Starting tests on %s", host)
output, err = RunSshCommand("ssh", GetHostnameOrIp(host), "--", "sh", "-c", cmd)
if err != nil {
aggErrs = append(aggErrs, err)
}
glog.Infof("Copying test artifacts from %s", host)
scpErr := getTestArtifacts(host, tmp)
if scpErr != nil {
aggErrs = append(aggErrs, scpErr)
}
return output, len(aggErrs) == 0, utilerrors.NewAggregate(aggErrs)
}
// Returns the command output, whether the exit was ok, and any errors
func RunRemote(archive string, host string, cleanup bool, junitFilePrefix string, testArgs string, ginkgoFlags string) (string, bool, error) {
// Create the temp staging directory
glog.Infof("Staging test binaries on %s", host)
workspace := fmt.Sprintf("/tmp/node-e2e-%s", getTimestamp())
// Do not sudo here, so that we can use scp to copy test archive to the directdory.
if output, err := SSHNoSudo(host, "mkdir", workspace); err != nil {
// Exit failure with the error
return "", false, fmt.Errorf("failed to create workspace directory: %v output: %q", err, output)
}
if cleanup {
defer func() {
output, err := SSH(host, "rm", "-rf", workspace)
if err != nil {
glog.Errorf("failed to cleanup workspace %s on host %v. Output:\n%s", workspace, err, output)
}
}()
}
// Install the cni plugin.
cniPath := filepath.Join(workspace, CNIDirectory)
cmd := getSSHCommand(" ; ",
fmt.Sprintf("mkdir -p %s", cniPath),
fmt.Sprintf("wget -O - %s | tar -xz -C %s", CNIURL, cniPath),
)
if output, err := SSH(host, "sh", "-c", cmd); err != nil {
// Exit failure with the error
return "", false, fmt.Errorf("failed to install cni plugin: %v output: %q", err, output)
}
// Configure iptables firewall rules
// TODO: consider calling bootstrap script to configure host based on OS
output, err := SSH(host, "iptables", "-L", "INPUT")
if err != nil {
return "", false, fmt.Errorf("failed to get iptables INPUT: %v output: %q", err, output)
}
if strings.Contains(output, "Chain INPUT (policy DROP)") {
cmd = getSSHCommand("&&",
"(iptables -C INPUT -w -p TCP -j ACCEPT || iptables -A INPUT -w -p TCP -j ACCEPT)",
"(iptables -C INPUT -w -p UDP -j ACCEPT || iptables -A INPUT -w -p UDP -j ACCEPT)",
"(iptables -C INPUT -w -p ICMP -j ACCEPT || iptables -A INPUT -w -p ICMP -j ACCEPT)")
output, err := SSH(host, "sh", "-c", cmd)
if err != nil {
return "", false, fmt.Errorf("failed to configured firewall: %v output: %v", err, output)
}
}
output, err = SSH(host, "iptables", "-L", "FORWARD")
if err != nil {
return "", false, fmt.Errorf("failed to get iptables FORWARD: %v output: %q", err, output)
}
if strings.Contains(output, "Chain FORWARD (policy DROP)") {
cmd = getSSHCommand("&&",
"(iptables -C FORWARD -w -p TCP -j ACCEPT || iptables -A FORWARD -w -p TCP -j ACCEPT)",
"(iptables -C FORWARD -w -p UDP -j ACCEPT || iptables -A FORWARD -w -p UDP -j ACCEPT)",
"(iptables -C FORWARD -w -p ICMP -j ACCEPT || iptables -A FORWARD -w -p ICMP -j ACCEPT)")
output, err = SSH(host, "sh", "-c", cmd)
if err != nil {
return "", false, fmt.Errorf("failed to configured firewall: %v output: %v", err, output)
}
}
// Copy the archive to the staging directory
if output, err = runSSHCommand("scp", archive, fmt.Sprintf("%s:%s/", GetHostnameOrIp(host), workspace)); err != nil {
// Exit failure with the error
return "", false, fmt.Errorf("failed to copy test archive: %v, output: %q", err, output)
}
// Kill any running node processes
cmd = getSSHCommand(" ; ",
"pkill kubelet",
"pkill kube-apiserver",
"pkill etcd",
)
// No need to log an error if pkill fails since pkill will fail if the commands are not running.
// If we are unable to stop existing running k8s processes, we should see messages in the kubelet/apiserver/etcd
// logs about failing to bind the required ports.
glog.Infof("Killing any existing node processes on %s", host)
SSH(host, "sh", "-c", cmd)
// Extract the archive
cmd = getSSHCommand(" && ",
fmt.Sprintf("cd %s", workspace),
fmt.Sprintf("tar -xzvf ./%s", archiveName),
)
glog.Infof("Extracting tar on %s", host)
if output, err = SSH(host, "sh", "-c", cmd); err != nil {
// Exit failure with the error
return "", false, fmt.Errorf("failed to extract test archive: %v, output: %q", err, output)
}
// If we are testing on a GCI node, we chmod 544 the mounter and specify a different mounter path in the test args.
// We do this here because the local var `workspace` tells us which /tmp/node-e2e-%d is relevant to the current test run.
// Determine if the GCI mounter script exists locally.
k8sDir, err := builder.GetK8sRootDir()
if err != nil {
return "", false, fmt.Errorf("Could not find K8s root dir! Err: %v", err)
}
localSource := "cluster/gce/gci/mounter/mounter"
source := filepath.Join(k8sDir, localSource)
// Require the GCI mounter script, we want to make sure the remote test runner stays up to date if the mounter file moves
if _, err = os.Stat(source); err != nil {
return "", false, fmt.Errorf("Could not find GCI mounter script at %q! If this script has been (re)moved, please update the e2e node remote test runner accordingly! Err: %v", source, err)
}
// Determine if tests will run on a GCI node.
output, err = SSH(host, "sh", "-c", "'cat /etc/os-release'")
if err != nil {
glog.Errorf("Issue detecting node's OS via node's /etc/os-release. Err: %v, Output:\n%s", err, output)
return "", false, fmt.Errorf("Issue detecting node's OS via node's /etc/os-release. Err: %v, Output:\n%s", err, output)
}
if strings.Contains(output, "ID=gci") {
glog.Infof("GCI node and GCI mounter both detected, modifying --experimental-mounter-path accordingly")
// Note this implicitly requires the script to be where we expect in the tarball, so if that location changes the error
// here will tell us to update the remote test runner.
mounterPath := filepath.Join(workspace, "cluster/gce/gci/mounter/mounter")
output, err = SSH(host, "sh", "-c", fmt.Sprintf("'chmod 544 %s'", mounterPath))
if err != nil {
glog.Errorf("Unable to chmod 544 GCI mounter script. Err: %v, Output:\n%s", err, output)
return "", false, err
}
// Insert args at beginning of testArgs, so any values from command line take precedence
testArgs = fmt.Sprintf("--kubelet-flags=--experimental-mounter-path=%s ", mounterPath) + testArgs
}
// Run the tests
cmd = getSSHCommand(" && ",
fmt.Sprintf("cd %s", workspace),
fmt.Sprintf("timeout -k 30s %fs ./ginkgo %s ./e2e_node.test -- --logtostderr --v 4 --node-name=%s --report-dir=%s/results --report-prefix=%s %s",
testTimeoutSeconds.Seconds(), ginkgoFlags, host, workspace, junitFilePrefix, testArgs),
)
aggErrs := []error{}
glog.Infof("Starting tests on %s", host)
output, err = SSH(host, "sh", "-c", cmd)
// Do not log the output here, let the caller deal with the test output.
if err != nil {
aggErrs = append(aggErrs, err)
// Encountered an unexpected error. The remote test harness may not
// have finished retrieved and stored all the logs in this case. Try
// to get some logs for debugging purposes.
// TODO: This is a best-effort, temporary hack that only works for
// journald nodes. We should have a more robust way to collect logs.
var (
logName = "system.log"
logPath = fmt.Sprintf("/tmp/%s-%s", getTimestamp(), logName)
destPath = fmt.Sprintf("%s/%s-%s", *resultsDir, host, logName)
)
glog.Infof("Test failed unexpectedly. Attempting to retreiving system logs (only works for nodes with journald)")
// Try getting the system logs from journald and store it to a file.
// Don't reuse the original test directory on the remote host because
// it could've be been removed if the node was rebooted.
if output, err := SSH(host, "sh", "-c", fmt.Sprintf("'journalctl --system --all > %s'", logPath)); err == nil {
glog.Infof("Got the system logs from journald; copying it back...")
if output, err := runSSHCommand("scp", fmt.Sprintf("%s:%s", GetHostnameOrIp(host), logPath), destPath); err != nil {
glog.Infof("Failed to copy the log: err: %v, output: %q", err, output)
}
} else {
glog.Infof("Failed to run journactl (normal if it doesn't exist on the node): %v, output: %q", err, output)
}
}
glog.Infof("Copying test artifacts from %s", host)
scpErr := getTestArtifacts(host, workspace)
if scpErr != nil {
aggErrs = append(aggErrs, scpErr)
}
return output, len(aggErrs) == 0, utilerrors.NewAggregate(aggErrs)
}
