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Merge pull request #40062 from thaJeztah/testutil_improvements 

Various testutil improvements
This commit is contained in:
Brian Goff 2019-10-11 15:37:48 -07:00 committed by GitHub
parent f5eb39f75a 293c1a27a2
commit 28b645755a
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 80 additions and 56 deletions
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4
hack/make/.integration-daemon-stop
View File

@ -11,7 +11,9 @@ if [ ! "$(go env GOOS)" = 'windows' ]; then
echo >&2 "warning: PID $pid from $pidFile had a nonzero exit code"
fi
root=$(dirname "$pidFile")/root
umount "$root" || true
if [ -d "$root" ]; then
umount "$root" || true
fi
done
if [ -z "$DOCKER_TEST_HOST" ]; then

2
integration-cli/docker_cli_daemon_test.go
View File

@ -575,7 +575,7 @@ func (s *DockerDaemonSuite) TestDaemonExitOnFailure(c *testing.T) {
//attempt to start daemon with incorrect flags (we know -b and --bip conflict)
if err := s.d.StartWithError("--bridge", "nosuchbridge", "--bip", "1.1.1.1"); err != nil {
//verify we got the right error
if !strings.Contains(err.Error(), "Daemon exited") {
if !strings.Contains(err.Error(), "daemon exited") {
c.Fatalf("Expected daemon not to start, got %v", err)
}
// look in the log and make sure we got the message that daemon is shutting down

121
testutil/daemon/daemon.go
View File

@ -19,6 +19,7 @@ import (
"github.com/docker/docker/client"
"github.com/docker/docker/opts"
"github.com/docker/docker/pkg/ioutils"
"github.com/docker/docker/pkg/mount"
"github.com/docker/docker/pkg/stringid"
"github.com/docker/docker/testutil/request"
"github.com/docker/go-connections/sockets"
@ -71,6 +72,8 @@ type Daemon struct {
init bool
dockerdBinary string
log logT
pidFile string
args []string
// swarm related field
swarmListenAddr string
@ -89,7 +92,7 @@ func NewDaemon(workingDir string, ops ...Option) (*Daemon, error) {
storageDriver := os.Getenv("DOCKER_GRAPHDRIVER")
if err := os.MkdirAll(SockRoot, 0700); err != nil {
return nil, fmt.Errorf("could not create daemon socket root: %v", err)
return nil, errors.Wrapf(err, "failed to create daemon socket root %q", SockRoot)
}
id := fmt.Sprintf("d%s", stringid.TruncateID(stringid.GenerateRandomID()))
@ -100,7 +103,7 @@ func NewDaemon(workingDir string, ops ...Option) (*Daemon, error) {
}
daemonRoot := filepath.Join(daemonFolder, "root")
if err := os.MkdirAll(daemonRoot, 0755); err != nil {
return nil, fmt.Errorf("could not create daemon root: %v", err)
return nil, errors.Wrapf(err, "failed to create daemon root %q", daemonRoot)
}
userlandProxy := true
@ -195,7 +198,7 @@ func (d *Daemon) NewClientT(t testing.TB, extraOpts ...client.Opt) *client.Clien
t.Helper()
c, err := d.NewClient(extraOpts...)
assert.NilError(t, err, "cannot create daemon client")
assert.NilError(t, err, "[%s] could not create daemon client", d.id)
return c
}
@ -213,16 +216,16 @@ func (d *Daemon) NewClient(extraOpts ...client.Opt) (*client.Client, error) {
// Cleanup cleans the daemon files : exec root (network namespaces, ...), swarmkit files
func (d *Daemon) Cleanup(t testing.TB) {
t.Helper()
// Cleanup swarmkit wal files if present
cleanupRaftDir(t, d.Root)
cleanupNetworkNamespace(t, d.execRoot)
cleanupMount(t, d)
cleanupRaftDir(t, d)
cleanupNetworkNamespace(t, d)
}
// Start starts the daemon and return once it is ready to receive requests.
func (d *Daemon) Start(t testing.TB, args ...string) {
t.Helper()
if err := d.StartWithError(args...); err != nil {
t.Fatalf("failed to start daemon with arguments %v : %v", args, err)
t.Fatalf("[%s] failed to start daemon with arguments %v : %v", d.id, d.args, err)
}
}
@ -231,7 +234,7 @@ func (d *Daemon) Start(t testing.TB, args ...string) {
func (d *Daemon) StartWithError(args ...string) error {
logFile, err := os.OpenFile(filepath.Join(d.Folder, "docker.log"), os.O_RDWR|os.O_CREATE|os.O_APPEND, 0600)
if err != nil {
return errors.Wrapf(err, "[%s] Could not create %s/docker.log", d.id, d.Folder)
return errors.Wrapf(err, "[%s] failed to create logfile", d.id)
}
return d.StartWithLogFile(logFile, args...)
@ -245,29 +248,33 @@ func (d *Daemon) StartWithLogFile(out *os.File, providedArgs ...string) error {
return errors.Wrapf(err, "[%s] could not find docker binary in $PATH", d.id)
}
args := append(d.GlobalFlags,
if d.pidFile == "" {
d.pidFile = filepath.Join(d.Folder, "docker.pid")
}
d.args = append(d.GlobalFlags,
"--containerd", containerdSocket,
"--data-root", d.Root,
"--exec-root", d.execRoot,
"--pidfile", fmt.Sprintf("%s/docker.pid", d.Folder),
"--pidfile", d.pidFile,
fmt.Sprintf("--userland-proxy=%t", d.userlandProxy),
"--containerd-namespace", d.id,
"--containerd-plugins-namespace", d.id+"p",
)
if d.defaultCgroupNamespaceMode != "" {
args = append(args, []string{"--default-cgroupns-mode", d.defaultCgroupNamespaceMode}...)
d.args = append(d.args, []string{"--default-cgroupns-mode", d.defaultCgroupNamespaceMode}...)
}
if d.experimental {
args = append(args, "--experimental")
d.args = append(d.args, "--experimental")
}
if d.init {
args = append(args, "--init")
d.args = append(d.args, "--init")
}
if !(d.UseDefaultHost || d.UseDefaultTLSHost) {
args = append(args, []string{"--host", d.Sock()}...)
d.args = append(d.args, []string{"--host", d.Sock()}...)
}
if root := os.Getenv("DOCKER_REMAP_ROOT"); root != "" {
args = append(args, []string{"--userns-remap", root}...)
d.args = append(d.args, []string{"--userns-remap", root}...)
}
// If we don't explicitly set the log-level or debug flag(-D) then
@ -283,21 +290,21 @@ func (d *Daemon) StartWithLogFile(out *os.File, providedArgs ...string) error {
}
}
if !foundLog {
args = append(args, "--debug")
d.args = append(d.args, "--debug")
}
if d.storageDriver != "" && !foundSd {
args = append(args, "--storage-driver", d.storageDriver)
d.args = append(d.args, "--storage-driver", d.storageDriver)
}
args = append(args, providedArgs...)
d.cmd = exec.Command(dockerdBinary, args...)
d.args = append(d.args, providedArgs...)
d.cmd = exec.Command(dockerdBinary, d.args...)
d.cmd.Env = append(os.Environ(), "DOCKER_SERVICE_PREFER_OFFLINE_IMAGE=1")
d.cmd.Stdout = out
d.cmd.Stderr = out
d.logFile = out
if err := d.cmd.Start(); err != nil {
return errors.Errorf("[%s] could not start daemon container: %v", d.id, err)
return errors.Wrapf(err, "[%s] could not start daemon container", d.id)
}
wait := make(chan error, 1)
@ -337,9 +344,9 @@ func (d *Daemon) StartWithLogFile(out *os.File, providedArgs ...string) error {
select {
case <-ctx.Done():
return errors.Errorf("[%s] Daemon exited and never started: %s", d.id, ctx.Err())
return errors.Wrapf(ctx.Err(), "[%s] daemon exited and never started", d.id)
case err := <-d.Wait:
return errors.Errorf("[%s] Daemon exited during startup: %v", d.id, err)
return errors.Wrapf(err, "[%s] daemon exited during startup", d.id)
default:
rctx, rcancel := context.WithTimeout(context.TODO(), 2*time.Second)
defer rcancel()
@ -364,7 +371,7 @@ func (d *Daemon) StartWithLogFile(out *os.File, providedArgs ...string) error {
d.log.Logf("[%s] daemon started\n", d.id)
d.Root, err = d.queryRootDir()
if err != nil {
return errors.Errorf("[%s] error querying daemon for root directory: %v", d.id, err)
return errors.Wrapf(err, "[%s] error querying daemon for root directory", d.id)
}
return nil
}
@ -394,7 +401,10 @@ func (d *Daemon) Kill() error {
return err
}
return os.Remove(fmt.Sprintf("%s/docker.pid", d.Folder))
if d.pidFile != "" {
_ = os.Remove(d.pidFile)
}
return nil
}
// Pid returns the pid of the daemon
@ -435,9 +445,9 @@ func (d *Daemon) Stop(t testing.TB) {
err := d.StopWithError()
if err != nil {
if err != errDaemonNotStarted {
t.Fatalf("Error while stopping the daemon %s : %v", d.id, err)
t.Fatalf("[%s] error while stopping the daemon: %v", d.id, err)
} else {
t.Logf("Daemon %s is not started", d.id)
t.Logf("[%s] daemon is not started", d.id)
}
}
}
@ -451,12 +461,17 @@ func (d *Daemon) StopWithError() (err error) {
return errDaemonNotStarted
}
defer func() {
if err == nil {
d.log.Logf("[%s] Daemon stopped", d.id)
if err != nil {
d.log.Logf("[%s] error while stopping daemon: %v", d.id, err)
} else {
d.log.Logf("[%s] Error when stopping daemon: %v", d.id, err)
d.log.Logf("[%s] daemon stopped", d.id)
if d.pidFile != "" {
_ = os.Remove(d.pidFile)
}
}
if err := d.logFile.Close(); err != nil {
d.log.Logf("[%s] failed to close daemon logfile: %v", d.id, err)
}
d.logFile.Close()
d.cmd = nil
}()
@ -465,13 +480,13 @@ func (d *Daemon) StopWithError() (err error) {
defer ticker.Stop()
tick := ticker.C
d.log.Logf("[%s] Stopping daemon", d.id)
d.log.Logf("[%s] stopping daemon", d.id)
if err := d.cmd.Process.Signal(os.Interrupt); err != nil {
if strings.Contains(err.Error(), "os: process already finished") {
return errDaemonNotStarted
}
return errors.Errorf("could not send signal: %v", err)
return errors.Wrapf(err, "[%s] could not send signal", d.id)
}
out1:
@ -481,7 +496,7 @@ out1:
return err
case <-time.After(20 * time.Second):
// time for stopping jobs and run onShutdown hooks
d.log.Logf("[%s] daemon stop timeout", d.id)
d.log.Logf("[%s] daemon stop timed out after 20 seconds", d.id)
break out1
}
}
@ -494,24 +509,22 @@ out2:
case <-tick:
i++
if i > 5 {
d.log.Logf("tried to interrupt daemon for %d times, now try to kill it", i)
d.log.Logf("[%s] tried to interrupt daemon for %d times, now try to kill it", d.id, i)
break out2
}
d.log.Logf("Attempt #%d: daemon is still running with pid %d", i, d.cmd.Process.Pid)
d.log.Logf("[%d] attempt #%d/5: daemon is still running with pid %d", i, d.cmd.Process.Pid)
if err := d.cmd.Process.Signal(os.Interrupt); err != nil {
return errors.Errorf("could not send signal: %v", err)
return errors.Wrapf(err, "[%s] attempt #%d/5 could not send signal", d.id, i)
}
}
}
if err := d.cmd.Process.Kill(); err != nil {
d.log.Logf("Could not kill daemon: %v", err)
d.log.Logf("[%s] failed to kill daemon: %v", d.id, err)
return err
}
d.cmd.Wait()
return os.Remove(fmt.Sprintf("%s/docker.pid", d.Folder))
return nil
}
// Restart will restart the daemon by first stopping it and the starting it.
@ -576,15 +589,15 @@ func (d *Daemon) ReloadConfig() error {
<-started
if err := signalDaemonReload(d.cmd.Process.Pid); err != nil {
return errors.Errorf("error signaling daemon reload: %v", err)
return errors.Wrapf(err, "[%s] error signaling daemon reload", d.id)
}
select {
case err := <-errCh:
if err != nil {
return errors.Errorf("error waiting for daemon reload event: %v", err)
return errors.Wrapf(err, "[%s] error waiting for daemon reload event", d.id)
}
case <-time.After(30 * time.Second):
return errors.New("timeout waiting for daemon reload event")
return errors.Errorf("[%s] daemon reload event timed out after 30 seconds", d.id)
}
return nil
}
@ -593,19 +606,19 @@ func (d *Daemon) ReloadConfig() error {
func (d *Daemon) LoadBusybox(t testing.TB) {
t.Helper()
clientHost, err := client.NewClientWithOpts(client.FromEnv)
assert.NilError(t, err, "failed to create client")
assert.NilError(t, err, "[%s] failed to create client", d.id)
defer clientHost.Close()
ctx := context.Background()
reader, err := clientHost.ImageSave(ctx, []string{"busybox:latest"})
assert.NilError(t, err, "failed to download busybox")
assert.NilError(t, err, "[%s] failed to download busybox", d.id)
defer reader.Close()
c := d.NewClientT(t)
defer c.Close()
resp, err := c.ImageLoad(ctx, reader, true)
assert.NilError(t, err, "failed to load busybox")
assert.NilError(t, err, "[%s] failed to load busybox", d.id)
defer resp.Body.Close()
}
@ -710,12 +723,22 @@ func (d *Daemon) Info(t testing.TB) types.Info {
return info
}
func cleanupRaftDir(t testing.TB, rootPath string) {
// cleanupMount unmounts the daemon root directory, or logs a message if
// unmounting failed.
func cleanupMount(t testing.TB, d *Daemon) {
t.Helper()
if err := mount.Unmount(d.Root); err != nil {
d.log.Logf("[%s] unable to unmount daemon root (%s): %v", d.id, d.Root, err)
}
}
// cleanupRaftDir removes swarmkit wal files if present
func cleanupRaftDir(t testing.TB, d *Daemon) {
t.Helper()
for _, p := range []string{"wal", "wal-v3-encrypted", "snap-v3-encrypted"} {
dir := filepath.Join(rootPath, "swarm/raft", p)
dir := filepath.Join(d.Root, "swarm/raft", p)
if err := os.RemoveAll(dir); err != nil {
t.Logf("error removing %v: %v", dir, err)
t.Logf("[%s] error removing %v: %v", d.id, dir, err)
}
}
}

6
testutil/daemon/daemon_unix.go
View File

@ -13,17 +13,17 @@ import (
"gotest.tools/assert"
)
func cleanupNetworkNamespace(t testing.TB, execRoot string) {
func cleanupNetworkNamespace(t testing.TB, d *Daemon) {
t.Helper()
// Cleanup network namespaces in the exec root of this
// daemon because this exec root is specific to this
// daemon instance and has no chance of getting
// cleaned up when a new daemon is instantiated with a
// new exec root.
netnsPath := filepath.Join(execRoot, "netns")
netnsPath := filepath.Join(d.execRoot, "netns")
filepath.Walk(netnsPath, func(path string, info os.FileInfo, err error) error {
if err := unix.Unmount(path, unix.MNT_DETACH); err != nil && err != unix.EINVAL && err != unix.ENOENT {
t.Logf("unmount of %s failed: %v", path, err)
t.Logf("[%s] unmount of %s failed: %v", d.id, path, err)
}
os.Remove(path)
return nil

3
testutil/daemon/daemon_windows.go
View File

@ -23,8 +23,7 @@ func signalDaemonReload(pid int) error {
return fmt.Errorf("daemon reload not supported")
}
func cleanupNetworkNamespace(t testing.TB, execRoot string) {
}
func cleanupNetworkNamespace(_ testing.TB, _ *Daemon) {}
// CgroupNamespace returns the cgroup namespace the daemon is running in
func (d *Daemon) CgroupNamespace(t testing.TB) string {