package integration import ( "fmt" "os" "strconv" "time" . "github.com/containers/podman/v3/test/utils" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" . "github.com/onsi/gomega/gexec" ) // TODO: we need to check the output. Currently, we only check the exit codes // which is not enough. var _ = Describe("Podman stats", func() { var ( tempdir string podmanTest *PodmanTestIntegration ) BeforeEach(func() { SkipIfRootlessCgroupsV1("stats not supported on cgroupv1 for rootless users") if isContainerized() { SkipIfCgroupV1("stats not supported inside cgroupv1 container environment") } var err error tempdir, err = CreateTempDirInTempDir() if err != nil { os.Exit(1) } podmanTest = PodmanTestCreate(tempdir) podmanTest.Setup() podmanTest.SeedImages() }) AfterEach(func() { podmanTest.Cleanup() f := CurrentGinkgoTestDescription() processTestResult(f) }) It("podman stats with bogus container", func() { session := podmanTest.Podman([]string{"stats", "--no-stream", "123"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(125)) }) It("podman stats on a running container", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) cid := session.OutputToString() session = podmanTest.Podman([]string{"stats", "--no-stream", cid}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) }) It("podman stats on all containers", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"stats", "--no-stream", "-a"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) }) It("podman stats on all running containers", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"stats", "--no-stream"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) }) It("podman stats only output cids", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"stats", "--all", "--no-stream", "--format", "\"{{.ID}}\""}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) }) It("podman stats with GO template", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--format", "table {{.ID}} {{.AVGCPU}} {{.MemUsage}} {{.CPU}} {{.NetIO}} {{.BlockIO}} {{.PIDS}}"}) stats.WaitWithDefaultTimeout() Expect(stats).To(Exit(0)) }) It("podman stats with invalid GO template", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--format", "\"table {{.ID}} {{.NoSuchField}} \""}) stats.WaitWithDefaultTimeout() Expect(stats).To(ExitWithError()) }) It("podman stats with negative interval", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--interval=-1"}) stats.WaitWithDefaultTimeout() Expect(stats).To(ExitWithError()) }) It("podman stats with zero interval", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--interval=0"}) stats.WaitWithDefaultTimeout() Expect(stats).To(ExitWithError()) }) It("podman stats with interval", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--interval=5"}) stats.WaitWithDefaultTimeout() Expect(stats).Should(Exit(0)) }) It("podman stats with json output", func() { var found bool session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) for i := 0; i < 5; i++ { ps := podmanTest.Podman([]string{"ps", "-q"}) ps.WaitWithDefaultTimeout() if len(ps.OutputToStringArray()) == 1 { found = true break } time.Sleep(time.Second) } Expect(found).To(BeTrue()) stats := podmanTest.Podman([]string{"stats", "--all", "--no-stream", "--format", "json"}) stats.WaitWithDefaultTimeout() Expect(stats).Should(Exit(0)) Expect(stats.OutputToString()).To(BeValidJSON()) }) It("podman stats on a container with no net ns", func() { session := podmanTest.Podman([]string{"run", "-d", "--net", "none", ALPINE, "top"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"stats", "--no-stream", "-a"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) }) It("podman stats on a container that joined another's net ns", func() { session := podmanTest.RunTopContainer("") session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) cid := session.OutputToString() session = podmanTest.Podman([]string{"run", "-d", "--net", fmt.Sprintf("container:%s", cid), ALPINE, "top"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"stats", "--no-stream", "-a"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) }) It("podman stats on container with forced slirp4netns", func() { // This will force the slirp4netns net mode to be tested as root session := podmanTest.Podman([]string{"run", "-d", "--net", "slirp4netns", ALPINE, "top"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"stats", "--no-stream", "-a"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) }) // Regression test for #8265 It("podman stats with custom memory limits", func() { // Run three containers. One with a memory limit. Make sure // that the limits are different and the limited one has a // lower limit. ctrNoLimit0 := "no-limit-0" ctrNoLimit1 := "no-limit-1" ctrWithLimit := "with-limit" session := podmanTest.Podman([]string{"run", "-d", "--name", ctrNoLimit0, ALPINE, "top"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"run", "-d", "--name", ctrNoLimit1, ALPINE, "top"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"run", "-d", "--name", ctrWithLimit, "--memory", "50m", ALPINE, "top"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) session = podmanTest.Podman([]string{"stats", "--no-stream", "--format", "{{.MemLimit}}", ctrNoLimit0, ctrNoLimit1, ctrWithLimit}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) // We have three containers. The unlimited ones need to have // the same limit, the limited one a lower one. limits := session.OutputToStringArray() Expect(len(limits)).To(BeNumerically("==", 3)) Expect(limits[0]).To(Equal(limits[1])) Expect(limits[0]).ToNot(Equal(limits[2])) defaultLimit, err := strconv.Atoi(limits[0]) Expect(err).To(BeNil()) customLimit, err := strconv.Atoi(limits[2]) Expect(err).To(BeNil()) Expect(customLimit).To(BeNumerically("<", defaultLimit)) }) })