package integration import ( "fmt" "os" "os/exec" "strings" "time" . "github.com/containers/podman/v3/test/utils" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" . "github.com/onsi/gomega/gexec" ) func isEventBackendJournald(podmanTest *PodmanTestIntegration) bool { if !podmanTest.RemoteTest { // If not remote test, '--events-backend' is set to 'file' or 'none' return false } info := podmanTest.Podman([]string{"info", "--format", "{{.Host.EventLogger}}"}) info.WaitWithDefaultTimeout() if info.OutputToString() == "journald" { return true } return false } var _ = Describe("Podman logs", func() { var ( tempdir string err error podmanTest *PodmanTestIntegration ) BeforeEach(func() { tempdir, err = CreateTempDirInTempDir() if err != nil { os.Exit(1) } podmanTest = PodmanTestCreate(tempdir) podmanTest.Setup() podmanTest.SeedImages() }) AfterEach(func() { podmanTest.Cleanup() f := CurrentGinkgoTestDescription() processTestResult(f) }) for _, log := range []string{"k8s-file", "journald", "json-file"} { // This is important to move the 'log' var to the correct scope under Ginkgo flow. log := log skipIfJournaldInContainer := func() { if log == "journald" { SkipIfInContainer("journalctl inside a container doesn't work correctly") } } It("all lines: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(3)) Expect(results.OutputToString()).To(Equal("podman podman podman")) }) It("tail two lines: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", "--tail", "2", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(2)) }) It("tail zero lines: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", "--tail", "0", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(0)) }) It("tail 99 lines: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", "--tail", "99", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(3)) }) It("tail 800 lines: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "i=1; while [ \"$i\" -ne 1000 ]; do echo \"line $i\"; i=$((i + 1)); done"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", "--tail", "800", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(800)) }) It("tail 2 lines with timestamps: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", "--tail", "2", "-t", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(2)) }) It("since time 2017-08-07: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", "--since", "2017-08-07T10:10:09.056611202-04:00", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(3)) }) It("since duration 10m: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", "--since", "10m", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(3)) }) It("until duration 10m: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() results := podmanTest.Podman([]string{"logs", "--until", "10m", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(3)) }) It("until time NOW: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() now := time.Now() now = now.Add(time.Minute * 1) nowS := now.Format(time.RFC3339) results := podmanTest.Podman([]string{"logs", "--until", nowS, cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(len(results.OutputToStringArray())).To(Equal(3)) }) It("latest and container name should fail: "+log, func() { skipIfJournaldInContainer() results := podmanTest.Podman([]string{"logs", "-l", "foobar"}) results.WaitWithDefaultTimeout() Expect(results).To(ExitWithError()) }) It("two containers showing short container IDs: "+log, func() { skipIfJournaldInContainer() SkipIfRemote("podman-remote logs does not support showing two containers at the same time") log1 := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) log1.WaitWithDefaultTimeout() Expect(log1).Should(Exit(0)) cid1 := log1.OutputToString() log2 := podmanTest.Podman([]string{"run", "--log-driver", log, "-dt", ALPINE, "sh", "-c", "echo podman; echo podman; echo podman"}) log2.WaitWithDefaultTimeout() Expect(log2).Should(Exit(0)) cid2 := log2.OutputToString() results := podmanTest.Podman([]string{"logs", cid1, cid2}) results.WaitWithDefaultTimeout() Expect(results).Should(Exit(0)) output := results.OutputToStringArray() Expect(len(output)).To(Equal(6)) Expect(strings.Contains(output[0], cid1[:12]) || strings.Contains(output[0], cid2[:12])).To(BeTrue()) }) It("podman logs on a created container should result in 0 exit code: "+log, func() { skipIfJournaldInContainer() session := podmanTest.Podman([]string{"create", "--log-driver", log, "-t", "--name", "log", ALPINE}) session.WaitWithDefaultTimeout() Expect(session).To(Exit(0)) results := podmanTest.Podman([]string{"logs", "log"}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) }) It("streaming output: "+log, func() { skipIfJournaldInContainer() containerName := "logs-f" logc := podmanTest.Podman([]string{"run", "--log-driver", log, "--name", containerName, "-dt", ALPINE, "sh", "-c", "echo podman-1; sleep 1; echo podman-2"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) results := podmanTest.Podman([]string{"logs", "-f", containerName}) results.WaitWithDefaultTimeout() if log == "journald" && !isEventBackendJournald(podmanTest) { // --follow + journald log-driver is only supported with journald events-backend(PR #10431) Expect(results).To(Exit(125)) Expect(results.ErrorToString()).To(ContainSubstring("using --follow with the journald --log-driver but without the journald --events-backend")) return } Expect(results).To(Exit(0)) Expect(results.OutputToString()).To(ContainSubstring("podman-1")) Expect(results.OutputToString()).To(ContainSubstring("podman-2")) // Container should now be terminatING or terminatED, but we // have no guarantee of which: 'logs -f' does not necessarily // wait for cleanup. Run 'inspect' and accept either state. inspect := podmanTest.Podman([]string{"container", "inspect", "--format", "{{.State.Status}}", containerName}) inspect.WaitWithDefaultTimeout() if inspect.ExitCode() == 0 { Expect(inspect.OutputToString()).To(Equal("exited")) // TODO: add 2-second wait loop to confirm cleanup } else { Expect(inspect.ErrorToString()).To(ContainSubstring("no such container")) } results = podmanTest.Podman([]string{"rm", "--time", "0", "-f", containerName}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) }) It("follow output stopped container: "+log, func() { skipIfJournaldInContainer() containerName := "logs-f" logc := podmanTest.Podman([]string{"run", "--log-driver", log, "--name", containerName, "-d", ALPINE, "true"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) results := podmanTest.Podman([]string{"logs", "-f", containerName}) results.WaitWithDefaultTimeout() if log == "journald" && !isEventBackendJournald(podmanTest) { // --follow + journald log-driver is only supported with journald events-backend(PR #10431) Expect(results).To(Exit(125)) return } Expect(results).To(Exit(0)) }) It("using container with container log-size: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "--log-opt=max-size=10k", "-d", ALPINE, "sh", "-c", "echo podman podman podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() wait := podmanTest.Podman([]string{"wait", cid}) wait.WaitWithDefaultTimeout() Expect(wait).To(Exit(0)) inspect := podmanTest.Podman([]string{"container", "inspect", "--format", "{{.HostConfig.LogConfig.Size}}", cid}) inspect.WaitWithDefaultTimeout() Expect(inspect).To(Exit(0)) Expect(inspect.OutputToString()).To(Equal("10kB")) results := podmanTest.Podman([]string{"logs", cid}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(results.OutputToString()).To(Equal("podman podman podman")) }) It("Make sure logs match expected length: "+log, func() { skipIfJournaldInContainer() logc := podmanTest.Podman([]string{"run", "--log-driver", log, "-t", "--name", "test", ALPINE, "sh", "-c", "echo 1; echo 2"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) wait := podmanTest.Podman([]string{"wait", "test"}) wait.WaitWithDefaultTimeout() Expect(wait).To(Exit(0)) results := podmanTest.Podman([]string{"logs", "test"}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) outlines := results.OutputToStringArray() Expect(len(outlines)).To(Equal(2)) Expect(outlines[0]).To(Equal("1\r")) Expect(outlines[1]).To(Equal("2\r")) }) It("podman logs test stdout and stderr: "+log, func() { skipIfJournaldInContainer() cname := "log-test" logc := podmanTest.Podman([]string{"run", "--log-driver", log, "--name", cname, ALPINE, "sh", "-c", "echo stdout; echo stderr >&2"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) wait := podmanTest.Podman([]string{"wait", cname}) wait.WaitWithDefaultTimeout() Expect(wait).To(Exit(0)) results := podmanTest.Podman([]string{"logs", cname}) results.WaitWithDefaultTimeout() Expect(results).To(Exit(0)) Expect(results.OutputToString()).To(Equal("stdout")) Expect(results.ErrorToString()).To(Equal("stderr")) }) } It("using journald for container with container tag", func() { SkipIfInContainer("journalctl inside a container doesn't work correctly") logc := podmanTest.Podman([]string{"run", "--log-driver", "journald", "--log-opt=tag={{.ImageName}}", "-d", ALPINE, "sh", "-c", "echo podman; sleep 0.1; echo podman; sleep 0.1; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() wait := podmanTest.Podman([]string{"wait", cid}) wait.WaitWithDefaultTimeout() Expect(wait).To(Exit(0)) cmd := exec.Command("journalctl", "--no-pager", "-o", "json", "--output-fields=CONTAINER_TAG", fmt.Sprintf("CONTAINER_ID_FULL=%s", cid)) out, err := cmd.CombinedOutput() Expect(err).To(BeNil()) Expect(string(out)).To(ContainSubstring("alpine")) }) It("using journald container name", func() { SkipIfInContainer("journalctl inside a container doesn't work correctly") containerName := "inside-journal" logc := podmanTest.Podman([]string{"run", "--log-driver", "journald", "-d", "--name", containerName, ALPINE, "sh", "-c", "echo podman; sleep 0.1; echo podman; sleep 0.1; echo podman"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) cid := logc.OutputToString() wait := podmanTest.Podman([]string{"wait", cid}) wait.WaitWithDefaultTimeout() Expect(wait).To(Exit(0)) cmd := exec.Command("journalctl", "--no-pager", "-o", "json", "--output-fields=CONTAINER_NAME", fmt.Sprintf("CONTAINER_ID_FULL=%s", cid)) out, err := cmd.CombinedOutput() Expect(err).To(BeNil()) Expect(string(out)).To(ContainSubstring(containerName)) }) It("podman logs with log-driver=none errors", func() { ctrName := "logsctr" logc := podmanTest.Podman([]string{"run", "--name", ctrName, "-d", "--log-driver", "none", ALPINE, "top"}) logc.WaitWithDefaultTimeout() Expect(logc).To(Exit(0)) logs := podmanTest.Podman([]string{"logs", "-f", ctrName}) logs.WaitWithDefaultTimeout() Expect(logs).To(Not(Exit(0))) }) })