| package main |
| |
| import ( |
| "bufio" |
| "fmt" |
| "os/exec" |
| "regexp" |
| "strconv" |
| "strings" |
| "sync" |
| "time" |
| |
| "github.com/go-check/check" |
| ) |
| |
| func (s *DockerSuite) TestEventsTimestampFormats(c *check.C) { |
| image := "busybox" |
| |
| // Start stopwatch, generate an event |
| time.Sleep(time.Second) // so that we don't grab events from previous test occured in the same second |
| start := daemonTime(c) |
| time.Sleep(time.Second) // remote API precision is only a second, wait a while before creating an event |
| dockerCmd(c, "tag", image, "timestamptest:1") |
| dockerCmd(c, "rmi", "timestamptest:1") |
| time.Sleep(time.Second) // so that until > since |
| end := daemonTime(c) |
| |
| // List of available time formats to --since |
| unixTs := func(t time.Time) string { return fmt.Sprintf("%v", t.Unix()) } |
| rfc3339 := func(t time.Time) string { return t.Format(time.RFC3339) } |
| |
| // --since=$start must contain only the 'untag' event |
| for _, f := range []func(time.Time) string{unixTs, rfc3339} { |
| since, until := f(start), f(end) |
| cmd := exec.Command(dockerBinary, "events", "--since="+since, "--until="+until) |
| out, _, err := runCommandWithOutput(cmd) |
| if err != nil { |
| c.Fatalf("docker events cmd failed: %v\nout=%s", err, out) |
| } |
| events := strings.Split(strings.TrimSpace(out), "\n") |
| if len(events) != 2 { |
| c.Fatalf("unexpected events, was expecting only 2 events tag/untag (since=%s, until=%s) out=%s", since, until, out) |
| } |
| if !strings.Contains(out, "untag") { |
| c.Fatalf("expected 'untag' event not found (since=%s, until=%s) out=%s", since, until, out) |
| } |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsUntag(c *check.C) { |
| image := "busybox" |
| dockerCmd(c, "tag", image, "utest:tag1") |
| dockerCmd(c, "tag", image, "utest:tag2") |
| dockerCmd(c, "rmi", "utest:tag1") |
| dockerCmd(c, "rmi", "utest:tag2") |
| eventsCmd := exec.Command(dockerBinary, "events", "--since=1") |
| out, exitCode, _, err := runCommandWithOutputForDuration(eventsCmd, time.Duration(time.Millisecond*200)) |
| if exitCode != 0 || err != nil { |
| c.Fatalf("Failed to get events - exit code %d: %s", exitCode, err) |
| } |
| events := strings.Split(out, "\n") |
| nEvents := len(events) |
| // The last element after the split above will be an empty string, so we |
| // get the two elements before the last, which are the untags we're |
| // looking for. |
| for _, v := range events[nEvents-3 : nEvents-1] { |
| if !strings.Contains(v, "untag") { |
| c.Fatalf("event should be untag, not %#v", v) |
| } |
| } |
| } |
| |
| func (s *DockerSuite) TestEventsContainerFailStartDie(c *check.C) { |
| |
| out, _ := dockerCmd(c, "images", "-q") |
| image := strings.Split(out, "\n")[0] |
| eventsCmd := exec.Command(dockerBinary, "run", "--name", "testeventdie", image, "blerg") |
| _, _, err := runCommandWithOutput(eventsCmd) |
| if err == nil { |
| c.Fatalf("Container run with command blerg should have failed, but it did not") |
| } |
| |
| eventsCmd = exec.Command(dockerBinary, "events", "--since=0", fmt.Sprintf("--until=%d", daemonTime(c).Unix())) |
| out, _, _ = runCommandWithOutput(eventsCmd) |
| events := strings.Split(out, "\n") |
| if len(events) <= 1 { |
| c.Fatalf("Missing expected event") |
| } |
| |
| startEvent := strings.Fields(events[len(events)-3]) |
| dieEvent := strings.Fields(events[len(events)-2]) |
| |
| if startEvent[len(startEvent)-1] != "start" { |
| c.Fatalf("event should be start, not %#v", startEvent) |
| } |
| if dieEvent[len(dieEvent)-1] != "die" { |
| c.Fatalf("event should be die, not %#v", dieEvent) |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsLimit(c *check.C) { |
| |
| var waitGroup sync.WaitGroup |
| errChan := make(chan error, 17) |
| |
| args := []string{"run", "--rm", "busybox", "true"} |
| for i := 0; i < 17; i++ { |
| waitGroup.Add(1) |
| go func() { |
| defer waitGroup.Done() |
| errChan <- exec.Command(dockerBinary, args...).Run() |
| }() |
| } |
| |
| waitGroup.Wait() |
| close(errChan) |
| |
| for err := range errChan { |
| if err != nil { |
| c.Fatalf("%q failed with error: %v", strings.Join(args, " "), err) |
| } |
| } |
| |
| eventsCmd := exec.Command(dockerBinary, "events", "--since=0", fmt.Sprintf("--until=%d", daemonTime(c).Unix())) |
| out, _, _ := runCommandWithOutput(eventsCmd) |
| events := strings.Split(out, "\n") |
| nEvents := len(events) - 1 |
| if nEvents != 64 { |
| c.Fatalf("events should be limited to 64, but received %d", nEvents) |
| } |
| } |
| |
| func (s *DockerSuite) TestEventsContainerEvents(c *check.C) { |
| dockerCmd(c, "run", "--rm", "busybox", "true") |
| eventsCmd := exec.Command(dockerBinary, "events", "--since=0", fmt.Sprintf("--until=%d", daemonTime(c).Unix())) |
| out, exitCode, err := runCommandWithOutput(eventsCmd) |
| if exitCode != 0 || err != nil { |
| c.Fatalf("Failed to get events with exit code %d: %s", exitCode, err) |
| } |
| events := strings.Split(out, "\n") |
| events = events[:len(events)-1] |
| if len(events) < 4 { |
| c.Fatalf("Missing expected event") |
| } |
| createEvent := strings.Fields(events[len(events)-4]) |
| startEvent := strings.Fields(events[len(events)-3]) |
| dieEvent := strings.Fields(events[len(events)-2]) |
| destroyEvent := strings.Fields(events[len(events)-1]) |
| if createEvent[len(createEvent)-1] != "create" { |
| c.Fatalf("event should be create, not %#v", createEvent) |
| } |
| if startEvent[len(startEvent)-1] != "start" { |
| c.Fatalf("event should be start, not %#v", startEvent) |
| } |
| if dieEvent[len(dieEvent)-1] != "die" { |
| c.Fatalf("event should be die, not %#v", dieEvent) |
| } |
| if destroyEvent[len(destroyEvent)-1] != "destroy" { |
| c.Fatalf("event should be destroy, not %#v", destroyEvent) |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsContainerEventsSinceUnixEpoch(c *check.C) { |
| dockerCmd(c, "run", "--rm", "busybox", "true") |
| timeBeginning := time.Unix(0, 0).Format(time.RFC3339Nano) |
| timeBeginning = strings.Replace(timeBeginning, "Z", ".000000000Z", -1) |
| eventsCmd := exec.Command(dockerBinary, "events", fmt.Sprintf("--since='%s'", timeBeginning), |
| fmt.Sprintf("--until=%d", daemonTime(c).Unix())) |
| out, exitCode, err := runCommandWithOutput(eventsCmd) |
| if exitCode != 0 || err != nil { |
| c.Fatalf("Failed to get events with exit code %d: %s", exitCode, err) |
| } |
| events := strings.Split(out, "\n") |
| events = events[:len(events)-1] |
| if len(events) < 4 { |
| c.Fatalf("Missing expected event") |
| } |
| createEvent := strings.Fields(events[len(events)-4]) |
| startEvent := strings.Fields(events[len(events)-3]) |
| dieEvent := strings.Fields(events[len(events)-2]) |
| destroyEvent := strings.Fields(events[len(events)-1]) |
| if createEvent[len(createEvent)-1] != "create" { |
| c.Fatalf("event should be create, not %#v", createEvent) |
| } |
| if startEvent[len(startEvent)-1] != "start" { |
| c.Fatalf("event should be start, not %#v", startEvent) |
| } |
| if dieEvent[len(dieEvent)-1] != "die" { |
| c.Fatalf("event should be die, not %#v", dieEvent) |
| } |
| if destroyEvent[len(destroyEvent)-1] != "destroy" { |
| c.Fatalf("event should be destroy, not %#v", destroyEvent) |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsImageUntagDelete(c *check.C) { |
| name := "testimageevents" |
| _, err := buildImage(name, |
| `FROM scratch |
| MAINTAINER "docker"`, |
| true) |
| if err != nil { |
| c.Fatal(err) |
| } |
| if err := deleteImages(name); err != nil { |
| c.Fatal(err) |
| } |
| eventsCmd := exec.Command(dockerBinary, "events", "--since=0", fmt.Sprintf("--until=%d", daemonTime(c).Unix())) |
| out, exitCode, err := runCommandWithOutput(eventsCmd) |
| if exitCode != 0 || err != nil { |
| c.Fatalf("Failed to get events with exit code %d: %s", exitCode, err) |
| } |
| events := strings.Split(out, "\n") |
| |
| events = events[:len(events)-1] |
| if len(events) < 2 { |
| c.Fatalf("Missing expected event") |
| } |
| untagEvent := strings.Fields(events[len(events)-2]) |
| deleteEvent := strings.Fields(events[len(events)-1]) |
| if untagEvent[len(untagEvent)-1] != "untag" { |
| c.Fatalf("untag should be untag, not %#v", untagEvent) |
| } |
| if deleteEvent[len(deleteEvent)-1] != "delete" { |
| c.Fatalf("delete should be delete, not %#v", deleteEvent) |
| } |
| } |
| |
| func (s *DockerSuite) TestEventsImageTag(c *check.C) { |
| time.Sleep(time.Second * 2) // because API has seconds granularity |
| since := daemonTime(c).Unix() |
| image := "testimageevents:tag" |
| dockerCmd(c, "tag", "busybox", image) |
| |
| eventsCmd := exec.Command(dockerBinary, "events", |
| fmt.Sprintf("--since=%d", since), |
| fmt.Sprintf("--until=%d", daemonTime(c).Unix())) |
| out, _, err := runCommandWithOutput(eventsCmd) |
| c.Assert(err, check.IsNil) |
| |
| events := strings.Split(strings.TrimSpace(out), "\n") |
| if len(events) != 1 { |
| c.Fatalf("was expecting 1 event. out=%s", out) |
| } |
| event := strings.TrimSpace(events[0]) |
| expectedStr := image + ": tag" |
| |
| if !strings.HasSuffix(event, expectedStr) { |
| c.Fatalf("wrong event format. expected='%s' got=%s", expectedStr, event) |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsImagePull(c *check.C) { |
| since := daemonTime(c).Unix() |
| testRequires(c, Network) |
| |
| pullCmd := exec.Command(dockerBinary, "pull", "hello-world") |
| if out, _, err := runCommandWithOutput(pullCmd); err != nil { |
| c.Fatalf("pulling the hello-world image from has failed: %s, %v", out, err) |
| } |
| |
| eventsCmd := exec.Command(dockerBinary, "events", |
| fmt.Sprintf("--since=%d", since), |
| fmt.Sprintf("--until=%d", daemonTime(c).Unix())) |
| out, _, _ := runCommandWithOutput(eventsCmd) |
| |
| events := strings.Split(strings.TrimSpace(out), "\n") |
| event := strings.TrimSpace(events[len(events)-1]) |
| |
| if !strings.HasSuffix(event, "hello-world:latest: pull") { |
| c.Fatalf("Missing pull event - got:%q", event) |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsImageImport(c *check.C) { |
| since := daemonTime(c).Unix() |
| |
| id := make(chan string) |
| eventImport := make(chan struct{}) |
| eventsCmd := exec.Command(dockerBinary, "events", "--since", strconv.FormatInt(since, 10)) |
| stdout, err := eventsCmd.StdoutPipe() |
| if err != nil { |
| c.Fatal(err) |
| } |
| if err := eventsCmd.Start(); err != nil { |
| c.Fatal(err) |
| } |
| defer eventsCmd.Process.Kill() |
| |
| go func() { |
| containerID := <-id |
| |
| matchImport := regexp.MustCompile(containerID + `: import$`) |
| scanner := bufio.NewScanner(stdout) |
| for scanner.Scan() { |
| if matchImport.MatchString(scanner.Text()) { |
| close(eventImport) |
| } |
| } |
| }() |
| |
| runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "true") |
| out, _, err := runCommandWithOutput(runCmd) |
| if err != nil { |
| c.Fatal("failed to create a container", out, err) |
| } |
| cleanedContainerID := strings.TrimSpace(out) |
| |
| out, _, err = runCommandPipelineWithOutput( |
| exec.Command(dockerBinary, "export", cleanedContainerID), |
| exec.Command(dockerBinary, "import", "-"), |
| ) |
| if err != nil { |
| c.Errorf("import failed with errors: %v, output: %q", err, out) |
| } |
| newContainerID := strings.TrimSpace(out) |
| id <- newContainerID |
| |
| select { |
| case <-time.After(5 * time.Second): |
| c.Fatal("failed to observe image import in timely fashion") |
| case <-eventImport: |
| // ignore, done |
| } |
| } |
| |
| func (s *DockerSuite) TestEventsFilters(c *check.C) { |
| parseEvents := func(out, match string) { |
| events := strings.Split(out, "\n") |
| events = events[:len(events)-1] |
| for _, event := range events { |
| eventFields := strings.Fields(event) |
| eventName := eventFields[len(eventFields)-1] |
| if ok, err := regexp.MatchString(match, eventName); err != nil || !ok { |
| c.Fatalf("event should match %s, got %#v, err: %v", match, eventFields, err) |
| } |
| } |
| } |
| |
| since := daemonTime(c).Unix() |
| out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--rm", "busybox", "true")) |
| if err != nil { |
| c.Fatal(out, err) |
| } |
| out, _, err = runCommandWithOutput(exec.Command(dockerBinary, "run", "--rm", "busybox", "true")) |
| if err != nil { |
| c.Fatal(out, err) |
| } |
| out, _, err = runCommandWithOutput(exec.Command(dockerBinary, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(c).Unix()), "--filter", "event=die")) |
| if err != nil { |
| c.Fatalf("Failed to get events: %s", err) |
| } |
| parseEvents(out, "die") |
| |
| out, _, err = runCommandWithOutput(exec.Command(dockerBinary, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(c).Unix()), "--filter", "event=die", "--filter", "event=start")) |
| if err != nil { |
| c.Fatalf("Failed to get events: %s", err) |
| } |
| parseEvents(out, "((die)|(start))") |
| |
| // make sure we at least got 2 start events |
| count := strings.Count(out, "start") |
| if count < 2 { |
| c.Fatalf("should have had 2 start events but had %d, out: %s", count, out) |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsFilterImageName(c *check.C) { |
| since := daemonTime(c).Unix() |
| |
| out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", "container_1", "-d", "busybox:latest", "true")) |
| if err != nil { |
| c.Fatal(out, err) |
| } |
| container1 := strings.TrimSpace(out) |
| |
| out, _, err = runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", "container_2", "-d", "busybox", "true")) |
| if err != nil { |
| c.Fatal(out, err) |
| } |
| container2 := strings.TrimSpace(out) |
| |
| name := "busybox" |
| eventsCmd := exec.Command(dockerBinary, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(c).Unix()), "--filter", fmt.Sprintf("image=%s", name)) |
| out, _, err = runCommandWithOutput(eventsCmd) |
| if err != nil { |
| c.Fatalf("Failed to get events, error: %s(%s)", err, out) |
| } |
| events := strings.Split(out, "\n") |
| events = events[:len(events)-1] |
| if len(events) == 0 { |
| c.Fatalf("Expected events but found none for the image busybox:latest") |
| } |
| count1 := 0 |
| count2 := 0 |
| |
| for _, e := range events { |
| if strings.Contains(e, container1) { |
| count1++ |
| } else if strings.Contains(e, container2) { |
| count2++ |
| } |
| } |
| if count1 == 0 || count2 == 0 { |
| c.Fatalf("Expected events from each container but got %d from %s and %d from %s", count1, container1, count2, container2) |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsFilterContainer(c *check.C) { |
| since := fmt.Sprintf("%d", daemonTime(c).Unix()) |
| nameID := make(map[string]string) |
| |
| for _, name := range []string{"container_1", "container_2"} { |
| out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", name, "busybox", "true")) |
| if err != nil { |
| c.Fatalf("Error: %v, Output: %s", err, out) |
| } |
| id, err := inspectField(name, "Id") |
| if err != nil { |
| c.Fatal(err) |
| } |
| nameID[name] = id |
| } |
| |
| until := fmt.Sprintf("%d", daemonTime(c).Unix()) |
| |
| checkEvents := func(id string, events []string) error { |
| if len(events) != 3 { // create, start, die |
| return fmt.Errorf("expected 3 events, got %v", events) |
| } |
| for _, event := range events { |
| e := strings.Fields(event) |
| if len(e) < 3 { |
| return fmt.Errorf("got malformed event: %s", event) |
| } |
| |
| // Check the id |
| parsedID := strings.TrimSuffix(e[1], ":") |
| if parsedID != id { |
| return fmt.Errorf("expected event for container id %s: %s - parsed container id: %s", id, event, parsedID) |
| } |
| } |
| return nil |
| } |
| |
| for name, ID := range nameID { |
| // filter by names |
| eventsCmd := exec.Command(dockerBinary, "events", "--since", since, "--until", until, "--filter", "container="+name) |
| out, _, err := runCommandWithOutput(eventsCmd) |
| if err != nil { |
| c.Fatal(err) |
| } |
| |
| events := strings.Split(strings.TrimSuffix(out, "\n"), "\n") |
| if err := checkEvents(ID, events); err != nil { |
| c.Fatal(err) |
| } |
| |
| // filter by ID's |
| eventsCmd = exec.Command(dockerBinary, "events", "--since", since, "--until", until, "--filter", "container="+ID) |
| out, _, err = runCommandWithOutput(eventsCmd) |
| if err != nil { |
| c.Fatal(err) |
| } |
| |
| events = strings.Split(strings.TrimSuffix(out, "\n"), "\n") |
| if err := checkEvents(ID, events); err != nil { |
| c.Fatal(err) |
| } |
| } |
| |
| } |
| |
| func (s *DockerSuite) TestEventsStreaming(c *check.C) { |
| start := daemonTime(c).Unix() |
| |
| id := make(chan string) |
| eventCreate := make(chan struct{}) |
| eventStart := make(chan struct{}) |
| eventDie := make(chan struct{}) |
| eventDestroy := make(chan struct{}) |
| |
| eventsCmd := exec.Command(dockerBinary, "events", "--since", strconv.FormatInt(start, 10)) |
| stdout, err := eventsCmd.StdoutPipe() |
| if err != nil { |
| c.Fatal(err) |
| } |
| if err := eventsCmd.Start(); err != nil { |
| c.Fatalf("failed to start 'docker events': %s", err) |
| } |
| defer eventsCmd.Process.Kill() |
| |
| go func() { |
| containerID := <-id |
| |
| matchCreate := regexp.MustCompile(containerID + `: \(from busybox:latest\) create$`) |
| matchStart := regexp.MustCompile(containerID + `: \(from busybox:latest\) start$`) |
| matchDie := regexp.MustCompile(containerID + `: \(from busybox:latest\) die$`) |
| matchDestroy := regexp.MustCompile(containerID + `: \(from busybox:latest\) destroy$`) |
| |
| scanner := bufio.NewScanner(stdout) |
| for scanner.Scan() { |
| switch { |
| case matchCreate.MatchString(scanner.Text()): |
| close(eventCreate) |
| case matchStart.MatchString(scanner.Text()): |
| close(eventStart) |
| case matchDie.MatchString(scanner.Text()): |
| close(eventDie) |
| case matchDestroy.MatchString(scanner.Text()): |
| close(eventDestroy) |
| } |
| } |
| }() |
| |
| runCmd := exec.Command(dockerBinary, "run", "-d", "busybox:latest", "true") |
| out, _, err := runCommandWithOutput(runCmd) |
| if err != nil { |
| c.Fatal(out, err) |
| } |
| cleanedContainerID := strings.TrimSpace(out) |
| id <- cleanedContainerID |
| |
| select { |
| case <-time.After(5 * time.Second): |
| c.Fatal("failed to observe container create in timely fashion") |
| case <-eventCreate: |
| // ignore, done |
| } |
| |
| select { |
| case <-time.After(5 * time.Second): |
| c.Fatal("failed to observe container start in timely fashion") |
| case <-eventStart: |
| // ignore, done |
| } |
| |
| select { |
| case <-time.After(5 * time.Second): |
| c.Fatal("failed to observe container die in timely fashion") |
| case <-eventDie: |
| // ignore, done |
| } |
| |
| rmCmd := exec.Command(dockerBinary, "rm", cleanedContainerID) |
| out, _, err = runCommandWithOutput(rmCmd) |
| if err != nil { |
| c.Fatal(out, err) |
| } |
| |
| select { |
| case <-time.After(5 * time.Second): |
| c.Fatal("failed to observe container destroy in timely fashion") |
| case <-eventDestroy: |
| // ignore, done |
| } |
| } |
| |
| // #13753 |
| func (s *DockerSuite) TestEventsDefaultEmpty(c *check.C) { |
| dockerCmd(c, "run", "-d", "busybox") |
| out, _ := dockerCmd(c, "events", fmt.Sprintf("--until=%d", daemonTime(c).Unix())) |
| c.Assert(strings.TrimSpace(out), check.Equals, "") |
| } |