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moby--moby/integration-cli/docker_cli_events_test.go

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package main
import (
"fmt"
"os/exec"
"regexp"
"strconv"
"strings"
"testing"
"time"
)
func TestEventsUntag(t *testing.T) {
image := "busybox"
dockerCmd(t, "tag", image, "utest:tag1")
dockerCmd(t, "tag", image, "utest:tag2")
dockerCmd(t, "rmi", "utest:tag1")
dockerCmd(t, "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 {
t.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") {
t.Fatalf("event should be untag, not %#v", v)
}
}
logDone("events - untags are logged")
}
func TestEventsContainerFailStartDie(t *testing.T) {
defer deleteAllContainers()
out, _, _ := dockerCmd(t, "images", "-q")
image := strings.Split(out, "\n")[0]
eventsCmd := exec.Command(dockerBinary, "run", "--name", "testeventdie", image, "blerg")
_, _, err := runCommandWithOutput(eventsCmd)
if err == nil {
t.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(t).Unix()))
out, _, _ = runCommandWithOutput(eventsCmd)
events := strings.Split(out, "\n")
if len(events) <= 1 {
t.Fatalf("Missing expected event")
}
startEvent := strings.Fields(events[len(events)-3])
dieEvent := strings.Fields(events[len(events)-2])
if startEvent[len(startEvent)-1] != "start" {
t.Fatalf("event should be start, not %#v", startEvent)
}
if dieEvent[len(dieEvent)-1] != "die" {
t.Fatalf("event should be die, not %#v", dieEvent)
}
logDone("events - container unwilling to start logs die")
}
func TestEventsLimit(t *testing.T) {
defer deleteAllContainers()
for i := 0; i < 30; i++ {
dockerCmd(t, "run", "busybox", "echo", strconv.Itoa(i))
}
eventsCmd := exec.Command(dockerBinary, "events", "--since=0", fmt.Sprintf("--until=%d", daemonTime(t).Unix()))
out, _, _ := runCommandWithOutput(eventsCmd)
events := strings.Split(out, "\n")
nEvents := len(events) - 1
if nEvents != 64 {
t.Fatalf("events should be limited to 64, but received %d", nEvents)
}
logDone("events - limited to 64 entries")
}
func TestEventsContainerEvents(t *testing.T) {
dockerCmd(t, "run", "--rm", "busybox", "true")
eventsCmd := exec.Command(dockerBinary, "events", "--since=0", fmt.Sprintf("--until=%d", daemonTime(t).Unix()))
out, exitCode, err := runCommandWithOutput(eventsCmd)
if exitCode != 0 || err != nil {
t.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 {
t.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" {
t.Fatalf("event should be create, not %#v", createEvent)
}
if startEvent[len(startEvent)-1] != "start" {
t.Fatalf("event should be start, not %#v", startEvent)
}
if dieEvent[len(dieEvent)-1] != "die" {
t.Fatalf("event should be die, not %#v", dieEvent)
}
if destroyEvent[len(destroyEvent)-1] != "destroy" {
t.Fatalf("event should be destroy, not %#v", destroyEvent)
}
logDone("events - container create, start, die, destroy is logged")
}
func TestEventsImageUntagDelete(t *testing.T) {
name := "testimageevents"
defer deleteImages(name)
_, err := buildImage(name,
`FROM scratch
MAINTAINER "docker"`,
true)
if err != nil {
t.Fatal(err)
}
if err := deleteImages(name); err != nil {
t.Fatal(err)
}
eventsCmd := exec.Command(dockerBinary, "events", "--since=0", fmt.Sprintf("--until=%d", daemonTime(t).Unix()))
out, exitCode, err := runCommandWithOutput(eventsCmd)
if exitCode != 0 || err != nil {
t.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 {
t.Fatalf("Missing expected event")
}
untagEvent := strings.Fields(events[len(events)-2])
deleteEvent := strings.Fields(events[len(events)-1])
if untagEvent[len(untagEvent)-1] != "untag" {
t.Fatalf("untag should be untag, not %#v", untagEvent)
}
if deleteEvent[len(deleteEvent)-1] != "delete" {
t.Fatalf("delete should be delete, not %#v", deleteEvent)
}
logDone("events - image untag, delete is logged")
}
func TestEventsImagePull(t *testing.T) {
since := daemonTime(t).Unix()
testRequires(t, Network)
defer deleteImages("hello-world")
pullCmd := exec.Command(dockerBinary, "pull", "hello-world")
if out, _, err := runCommandWithOutput(pullCmd); err != nil {
t.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(t).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") {
t.Fatalf("Missing pull event - got:%q", event)
}
logDone("events - image pull is logged")
}
func TestEventsImageImport(t *testing.T) {
defer deleteAllContainers()
since := daemonTime(t).Unix()
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "true")
out, _, err := runCommandWithOutput(runCmd)
if err != nil {
t.Fatal("failed to create a container", out, err)
}
cleanedContainerID := stripTrailingCharacters(out)
out, _, err = runCommandPipelineWithOutput(
exec.Command(dockerBinary, "export", cleanedContainerID),
exec.Command(dockerBinary, "import", "-"),
)
if err != nil {
t.Errorf("import failed with errors: %v, output: %q", err, out)
}
eventsCmd := exec.Command(dockerBinary, "events",
fmt.Sprintf("--since=%d", since),
fmt.Sprintf("--until=%d", daemonTime(t).Unix()))
out, _, _ = runCommandWithOutput(eventsCmd)
events := strings.Split(strings.TrimSpace(out), "\n")
event := strings.TrimSpace(events[len(events)-1])
if !strings.HasSuffix(event, ": import") {
t.Fatalf("Missing pull event - got:%q", event)
}
logDone("events - image import is logged")
}
func TestEventsFilters(t *testing.T) {
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 {
t.Fatalf("event should match %s, got %#v, err: %v", match, eventFields, err)
}
}
}
since := daemonTime(t).Unix()
out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--rm", "busybox", "true"))
if err != nil {
t.Fatal(out, err)
}
out, _, err = runCommandWithOutput(exec.Command(dockerBinary, "run", "--rm", "busybox", "true"))
if err != nil {
t.Fatal(out, err)
}
out, _, err = runCommandWithOutput(exec.Command(dockerBinary, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(t).Unix()), "--filter", "event=die"))
if err != nil {
t.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(t).Unix()), "--filter", "event=die", "--filter", "event=start"))
if err != nil {
t.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 {
t.Fatalf("should have had 2 start events but had %d, out: %s", count, out)
}
logDone("events - filters")
}
func TestEventsFilterImageName(t *testing.T) {
since := daemonTime(t).Unix()
defer deleteAllContainers()
out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", "container_1", "-d", "busybox", "true"))
if err != nil {
t.Fatal(out, err)
}
container1 := stripTrailingCharacters(out)
out, _, err = runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", "container_2", "-d", "busybox", "true"))
if err != nil {
t.Fatal(out, err)
}
container2 := stripTrailingCharacters(out)
for _, s := range []string{"busybox", "busybox:latest"} {
eventsCmd := exec.Command(dockerBinary, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(t).Unix()), "--filter", fmt.Sprintf("image=%s", s))
out, _, err := runCommandWithOutput(eventsCmd)
if err != nil {
t.Fatalf("Failed to get events, error: %s(%s)", err, out)
}
events := strings.Split(out, "\n")
events = events[:len(events)-1]
if len(events) == 0 {
t.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 {
t.Fatalf("Expected events from each container but got %d from %s and %d from %s", count1, container1, count2, container2)
}
}
logDone("events - filters using image")
}
func TestEventsFilterContainerID(t *testing.T) {
since := daemonTime(t).Unix()
defer deleteAllContainers()
out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "-d", "busybox", "true"))
if err != nil {
t.Fatal(out, err)
}
container1 := stripTrailingCharacters(out)
out, _, err = runCommandWithOutput(exec.Command(dockerBinary, "run", "-d", "busybox", "true"))
if err != nil {
t.Fatal(out, err)
}
container2 := stripTrailingCharacters(out)
for _, s := range []string{container1, container2, container1[:12], container2[:12]} {
eventsCmd := exec.Command(dockerBinary, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(t).Unix()), "--filter", fmt.Sprintf("container=%s", s))
out, _, err := runCommandWithOutput(eventsCmd)
if err != nil {
t.Fatalf("Failed to get events, error: %s(%s)", err, out)
}
events := strings.Split(out, "\n")
checkEvents(t, events[:len(events)-1])
}
logDone("events - filters using container id")
}
func TestEventsFilterContainerName(t *testing.T) {
since := daemonTime(t).Unix()
defer deleteAllContainers()
_, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", "container_1", "busybox", "true"))
if err != nil {
t.Fatal(err)
}
_, _, err = runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", "container_2", "busybox", "true"))
if err != nil {
t.Fatal(err)
}
for _, s := range []string{"container_1", "container_2"} {
eventsCmd := exec.Command(dockerBinary, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(t).Unix()), "--filter", fmt.Sprintf("container=%s", s))
out, _, err := runCommandWithOutput(eventsCmd)
if err != nil {
t.Fatalf("Failed to get events, error : %s(%s)", err, out)
}
events := strings.Split(out, "\n")
checkEvents(t, events[:len(events)-1])
}
logDone("events - filters using container name")
}
func checkEvents(t *testing.T, events []string) {
if len(events) != 3 {
t.Fatalf("Expected 3 events, got %d: %v", len(events), events)
}
createEvent := strings.Fields(events[0])
if createEvent[len(createEvent)-1] != "create" {
t.Fatalf("first event should be create, not %#v", createEvent)
}
startEvent := strings.Fields(events[1])
if startEvent[len(startEvent)-1] != "start" {
t.Fatalf("second event should be start, not %#v", startEvent)
}
dieEvent := strings.Fields(events[len(events)-1])
if dieEvent[len(dieEvent)-1] != "die" {
t.Fatalf("event should be die, not %#v", dieEvent)
}
}