aa0eca03e6
Currently the docker logs timestamp flag generates log entries like:
$ sudo docker logs -ft daemon_dave
[May 10 13:06:17.934] hello world
It uses Go's StampMilli timestamp to generate the timestamp. The entry
is also wrapped in [ ].
This is non-standard operational timestamp and one that will require
custom parsing.
The new timestamp is RFC3999Nano and generates entries like:
2014-05-10T17:42:14.999999999Z07:00 hello world
These are readily parsed by tools like ELK.
Docker-DCO-1.1-Signed-off-by: James Turnbull <james@lovedthanlost.net> (github: jamtur01)
Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
215 lines
7.2 KiB
Go
215 lines
7.2 KiB
Go
package main
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import (
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"fmt"
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"os/exec"
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"regexp"
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"strings"
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"testing"
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"time"
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)
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// This used to work, it test a log of PageSize-1 (gh#4851)
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func TestLogsContainerSmallerThanPage(t *testing.T) {
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testLen := 32767
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runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n =; done; echo", testLen))
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
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cleanedContainerID := stripTrailingCharacters(out)
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exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
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logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
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out, _, _, err = runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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if len(out) != testLen+1 {
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t.Fatalf("Expected log length of %d, received %d\n", testLen+1, len(out))
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}
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deleteContainer(cleanedContainerID)
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logDone("logs - logs container running echo smaller than page size")
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}
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// Regression test: When going over the PageSize, it used to panic (gh#4851)
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func TestLogsContainerBiggerThanPage(t *testing.T) {
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testLen := 32768
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runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n =; done; echo", testLen))
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
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cleanedContainerID := stripTrailingCharacters(out)
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exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
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logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
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out, _, _, err = runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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if len(out) != testLen+1 {
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t.Fatalf("Expected log length of %d, received %d\n", testLen+1, len(out))
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}
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deleteContainer(cleanedContainerID)
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logDone("logs - logs container running echo bigger than page size")
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}
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// Regression test: When going much over the PageSize, it used to block (gh#4851)
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func TestLogsContainerMuchBiggerThanPage(t *testing.T) {
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testLen := 33000
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runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n =; done; echo", testLen))
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
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cleanedContainerID := stripTrailingCharacters(out)
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exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
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logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
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out, _, _, err = runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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if len(out) != testLen+1 {
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t.Fatalf("Expected log length of %d, received %d\n", testLen+1, len(out))
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}
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deleteContainer(cleanedContainerID)
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logDone("logs - logs container running echo much bigger than page size")
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}
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func TestLogsTimestamps(t *testing.T) {
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testLen := 100
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runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo =; done;", testLen))
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
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cleanedContainerID := stripTrailingCharacters(out)
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exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
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logsCmd := exec.Command(dockerBinary, "logs", "-t", cleanedContainerID)
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out, _, _, err = runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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lines := strings.Split(out, "\n")
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if len(lines) != testLen+1 {
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t.Fatalf("Expected log %d lines, received %d\n", testLen+1, len(lines))
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}
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ts := regexp.MustCompile(`^.* `)
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for _, l := range lines {
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if l != "" {
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_, err := time.Parse(time.RFC3339Nano+" ", ts.FindString(l))
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if err != nil {
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t.Fatalf("Failed to parse timestamp from %v: %v", l, err)
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}
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}
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}
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deleteContainer(cleanedContainerID)
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logDone("logs - logs with timestamps")
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}
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func TestLogsSeparateStderr(t *testing.T) {
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msg := "stderr_log"
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runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("echo %s 1>&2", msg))
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
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cleanedContainerID := stripTrailingCharacters(out)
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exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
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logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
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stdout, stderr, _, err := runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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if stdout != "" {
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t.Fatalf("Expected empty stdout stream, got %v", stdout)
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}
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stderr = strings.TrimSpace(stderr)
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if stderr != msg {
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t.Fatalf("Expected %v in stderr stream, got %v", msg, stderr)
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}
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deleteContainer(cleanedContainerID)
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logDone("logs - separate stderr (without pseudo-tty)")
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}
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func TestLogsStderrInStdout(t *testing.T) {
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msg := "stderr_log"
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runCmd := exec.Command(dockerBinary, "run", "-d", "-t", "busybox", "sh", "-c", fmt.Sprintf("echo %s 1>&2", msg))
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
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cleanedContainerID := stripTrailingCharacters(out)
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exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
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logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
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stdout, stderr, _, err := runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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if stderr != "" {
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t.Fatalf("Expected empty stderr stream, got %v", stdout)
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}
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stdout = strings.TrimSpace(stdout)
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if stdout != msg {
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t.Fatalf("Expected %v in stdout stream, got %v", msg, stdout)
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}
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deleteContainer(cleanedContainerID)
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logDone("logs - stderr in stdout (with pseudo-tty)")
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}
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func TestLogsTail(t *testing.T) {
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testLen := 100
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runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo =; done;", testLen))
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
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cleanedContainerID := stripTrailingCharacters(out)
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exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
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logsCmd := exec.Command(dockerBinary, "logs", "--tail", "5", cleanedContainerID)
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out, _, _, err = runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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lines := strings.Split(out, "\n")
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if len(lines) != 6 {
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t.Fatalf("Expected log %d lines, received %d\n", 6, len(lines))
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}
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logsCmd = exec.Command(dockerBinary, "logs", "--tail", "all", cleanedContainerID)
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out, _, _, err = runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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lines = strings.Split(out, "\n")
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if len(lines) != testLen+1 {
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t.Fatalf("Expected log %d lines, received %d\n", testLen+1, len(lines))
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}
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logsCmd = exec.Command(dockerBinary, "logs", "--tail", "random", cleanedContainerID)
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out, _, _, err = runCommandWithStdoutStderr(logsCmd)
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errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
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lines = strings.Split(out, "\n")
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if len(lines) != testLen+1 {
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t.Fatalf("Expected log %d lines, received %d\n", testLen+1, len(lines))
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}
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deleteContainer(cleanedContainerID)
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logDone("logs - logs tail")
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}
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