package integration import ( "fmt" "os" "path/filepath" . "github.com/containers/podman/v4/test/utils" "github.com/containers/storage/pkg/stringid" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" . "github.com/onsi/gomega/gexec" ) var _ = Describe("Podman volume plugins", func() { var ( tempdir string err error podmanTest *PodmanTestIntegration ) BeforeEach(func() { tempdir, err = CreateTempDirInTempDir() if err != nil { os.Exit(1) } podmanTest = PodmanTestCreate(tempdir) podmanTest.Setup() os.Setenv("CONTAINERS_CONF", "config/containers.conf") SkipIfRemote("Volume plugins only supported as local") SkipIfRootless("Root is required for volume plugin testing") err = os.MkdirAll("/run/docker/plugins", 0755) Expect(err).ToNot(HaveOccurred()) }) AfterEach(func() { podmanTest.CleanupVolume() f := CurrentGinkgoTestDescription() processTestResult(f) os.Unsetenv("CONTAINERS_CONF") }) It("volume create with nonexistent plugin errors", func() { session := podmanTest.Podman([]string{"volume", "create", "--driver", "notexist", "test_volume_name"}) session.WaitWithDefaultTimeout() Expect(session).To(ExitWithError()) }) It("volume create with not-running plugin does not error", func() { session := podmanTest.Podman([]string{"volume", "create", "--driver", "testvol0", "test_volume_name"}) session.WaitWithDefaultTimeout() Expect(session).To(ExitWithError()) }) It("volume create and remove with running plugin succeeds", func() { podmanTest.AddImageToRWStore(volumeTest) pluginStatePath := filepath.Join(podmanTest.TempDir, "volumes") err := os.Mkdir(pluginStatePath, 0755) Expect(err).ToNot(HaveOccurred()) // Keep this distinct within tests to avoid multiple tests using the same plugin. pluginName := "testvol1" plugin := podmanTest.Podman([]string{"run", "--security-opt", "label=disable", "-v", "/run/docker/plugins:/run/docker/plugins", "-v", fmt.Sprintf("%v:%v", pluginStatePath, pluginStatePath), "-d", volumeTest, "--sock-name", pluginName, "--path", pluginStatePath}) plugin.WaitWithDefaultTimeout() Expect(plugin).Should(Exit(0)) volName := "testVolume1" create := podmanTest.Podman([]string{"volume", "create", "--driver", pluginName, volName}) create.WaitWithDefaultTimeout() Expect(create).Should(Exit(0)) ls1 := podmanTest.Podman([]string{"volume", "ls", "-q"}) ls1.WaitWithDefaultTimeout() Expect(ls1).Should(Exit(0)) arrOutput := ls1.OutputToStringArray() Expect(arrOutput).To(HaveLen(1)) Expect(arrOutput[0]).To(ContainSubstring(volName)) remove := podmanTest.Podman([]string{"volume", "rm", volName}) remove.WaitWithDefaultTimeout() Expect(remove).Should(Exit(0)) ls2 := podmanTest.Podman([]string{"volume", "ls", "-q"}) ls2.WaitWithDefaultTimeout() Expect(ls2).Should(Exit(0)) Expect(ls2.OutputToStringArray()).To(BeEmpty()) }) It("volume inspect with running plugin succeeds", func() { podmanTest.AddImageToRWStore(volumeTest) pluginStatePath := filepath.Join(podmanTest.TempDir, "volumes") err := os.Mkdir(pluginStatePath, 0755) Expect(err).ToNot(HaveOccurred()) // Keep this distinct within tests to avoid multiple tests using the same plugin. pluginName := "testvol2" plugin := podmanTest.Podman([]string{"run", "--security-opt", "label=disable", "-v", "/run/docker/plugins:/run/docker/plugins", "-v", fmt.Sprintf("%v:%v", pluginStatePath, pluginStatePath), "-d", volumeTest, "--sock-name", pluginName, "--path", pluginStatePath}) plugin.WaitWithDefaultTimeout() Expect(plugin).Should(Exit(0)) volName := "testVolume1" create := podmanTest.Podman([]string{"volume", "create", "--driver", pluginName, volName}) create.WaitWithDefaultTimeout() Expect(create).Should(Exit(0)) volInspect := podmanTest.Podman([]string{"volume", "inspect", "--format", "{{ .Driver }}", volName}) volInspect.WaitWithDefaultTimeout() Expect(volInspect).Should(Exit(0)) Expect(volInspect.OutputToString()).To(ContainSubstring(pluginName)) }) It("remove plugin with stopped plugin succeeds", func() { podmanTest.AddImageToRWStore(volumeTest) pluginStatePath := filepath.Join(podmanTest.TempDir, "volumes") err := os.Mkdir(pluginStatePath, 0755) Expect(err).ToNot(HaveOccurred()) // Keep this distinct within tests to avoid multiple tests using the same plugin. pluginName := "testvol3" ctrName := "pluginCtr" plugin := podmanTest.Podman([]string{"run", "--name", ctrName, "--security-opt", "label=disable", "-v", "/run/docker/plugins:/run/docker/plugins", "-v", fmt.Sprintf("%v:%v", pluginStatePath, pluginStatePath), "-d", volumeTest, "--sock-name", pluginName, "--path", pluginStatePath}) plugin.WaitWithDefaultTimeout() Expect(plugin).Should(Exit(0)) volName := "testVolume1" create := podmanTest.Podman([]string{"volume", "create", "--driver", pluginName, volName}) create.WaitWithDefaultTimeout() Expect(create).Should(Exit(0)) ls1 := podmanTest.Podman([]string{"volume", "ls", "-q"}) ls1.WaitWithDefaultTimeout() Expect(ls1).Should(Exit(0)) arrOutput := ls1.OutputToStringArray() Expect(arrOutput).To(HaveLen(1)) Expect(arrOutput[0]).To(ContainSubstring(volName)) stop := podmanTest.Podman([]string{"stop", "--timeout", "0", ctrName}) stop.WaitWithDefaultTimeout() Expect(stop).Should(Exit(0)) // Remove should exit non-zero because missing plugin remove := podmanTest.Podman([]string{"volume", "rm", volName}) remove.WaitWithDefaultTimeout() Expect(remove).To(ExitWithError()) // But the volume should still be gone ls2 := podmanTest.Podman([]string{"volume", "ls", "-q"}) ls2.WaitWithDefaultTimeout() Expect(ls2).Should(Exit(0)) Expect(ls2.OutputToStringArray()).To(BeEmpty()) }) It("use plugin in containers", func() { podmanTest.AddImageToRWStore(volumeTest) pluginStatePath := filepath.Join(podmanTest.TempDir, "volumes") err := os.Mkdir(pluginStatePath, 0755) Expect(err).ToNot(HaveOccurred()) // Keep this distinct within tests to avoid multiple tests using the same plugin. pluginName := "testvol4" plugin := podmanTest.Podman([]string{"run", "--security-opt", "label=disable", "-v", "/run/docker/plugins:/run/docker/plugins", "-v", fmt.Sprintf("%v:%v", pluginStatePath, pluginStatePath), "-d", volumeTest, "--sock-name", pluginName, "--path", pluginStatePath}) plugin.WaitWithDefaultTimeout() Expect(plugin).Should(Exit(0)) volName := "testVolume1" create := podmanTest.Podman([]string{"volume", "create", "--driver", pluginName, volName}) create.WaitWithDefaultTimeout() Expect(create).Should(Exit(0)) ctr1Name := "ctr1" ctr1 := podmanTest.Podman([]string{"run", "--security-opt", "label=disable", "--name", ctr1Name, "-v", fmt.Sprintf("%v:/test", volName), ALPINE, "sh", "-c", "touch /test/testfile && echo helloworld > /test/testfile"}) ctr1.WaitWithDefaultTimeout() Expect(ctr1).Should(Exit(0)) ctr2Name := "ctr2" ctr2 := podmanTest.Podman([]string{"run", "--security-opt", "label=disable", "--name", ctr2Name, "-v", fmt.Sprintf("%v:/test", volName), ALPINE, "cat", "/test/testfile"}) ctr2.WaitWithDefaultTimeout() Expect(ctr2).Should(Exit(0)) Expect(ctr2.OutputToString()).To(ContainSubstring("helloworld")) // HACK: `volume rm -f` is timing out trying to remove containers using the volume. // Solution: remove them manually... // TODO: fix this when I get back rmAll := podmanTest.Podman([]string{"rm", "-f", ctr2Name, ctr1Name}) rmAll.WaitWithDefaultTimeout() Expect(rmAll).Should(Exit(0)) }) It("podman volume reload", func() { podmanTest.AddImageToRWStore(volumeTest) confFile := filepath.Join(podmanTest.TempDir, "containers.conf") err := os.WriteFile(confFile, []byte(`[engine] [engine.volume_plugins] testvol5 = "/run/docker/plugins/testvol5.sock"`), 0o644) Expect(err).ToNot(HaveOccurred()) os.Setenv("CONTAINERS_CONF", confFile) pluginStatePath := filepath.Join(podmanTest.TempDir, "volumes") err = os.Mkdir(pluginStatePath, 0755) Expect(err).ToNot(HaveOccurred()) // Keep this distinct within tests to avoid multiple tests using the same plugin. pluginName := "testvol5" ctrName := "pluginCtr" plugin := podmanTest.Podman([]string{"run", "--name", ctrName, "--security-opt", "label=disable", "-v", "/run/docker/plugins:/run/docker/plugins", "-v", fmt.Sprintf("%v:%v", pluginStatePath, pluginStatePath), "-d", volumeTest, "--sock-name", pluginName, "--path", pluginStatePath}) plugin.WaitWithDefaultTimeout() Expect(plugin).Should(Exit(0)) localvol := "local-" + stringid.GenerateRandomID() // create local volume session := podmanTest.Podman([]string{"volume", "create", localvol}) session.WaitWithDefaultTimeout() Expect(session).To(Exit(0)) vol1 := "vol1-" + stringid.GenerateRandomID() session = podmanTest.Podman([]string{"volume", "create", "--driver", pluginName, vol1}) session.WaitWithDefaultTimeout() Expect(session).To(Exit(0)) // now create volume in plugin without podman vol2 := "vol2-" + stringid.GenerateRandomID() plugin = podmanTest.Podman([]string{"exec", ctrName, "/usr/local/bin/testvol", "--sock-name", pluginName, "create", vol2}) plugin.WaitWithDefaultTimeout() Expect(plugin).Should(Exit(0)) session = podmanTest.Podman([]string{"volume", "ls", "-q"}) session.WaitWithDefaultTimeout() Expect(session).To(Exit(0)) Expect(session.OutputToStringArray()).To(ContainElements(localvol, vol1)) Expect(session.ErrorToString()).To(Equal("")) // make sure no errors are shown plugin = podmanTest.Podman([]string{"exec", ctrName, "/usr/local/bin/testvol", "--sock-name", pluginName, "remove", vol1}) plugin.WaitWithDefaultTimeout() Expect(plugin).Should(Exit(0)) // now reload volumes from plugins session = podmanTest.Podman([]string{"volume", "reload"}) session.WaitWithDefaultTimeout() Expect(session).To(Exit(0)) Expect(string(session.Out.Contents())).To(Equal(fmt.Sprintf(`Added: %s Removed: %s `, vol2, vol1))) Expect(session.ErrorToString()).To(Equal("")) // make sure no errors are shown session = podmanTest.Podman([]string{"volume", "ls", "-q"}) session.WaitWithDefaultTimeout() Expect(session).To(Exit(0)) Expect(session.OutputToStringArray()).To(ContainElements(localvol, vol2)) Expect(session.ErrorToString()).To(Equal("")) // make no errors are shown }) It("volume driver timeouts test", func() { podmanTest.AddImageToRWStore(volumeTest) pluginStatePath := filepath.Join(podmanTest.TempDir, "volumes") err := os.Mkdir(pluginStatePath, 0755) Expect(err).ToNot(HaveOccurred()) // Keep this distinct within tests to avoid multiple tests using the same plugin. pluginName := "testvol6" plugin := podmanTest.Podman([]string{"run", "--security-opt", "label=disable", "-v", "/run/docker/plugins:/run/docker/plugins", "-v", fmt.Sprintf("%v:%v", pluginStatePath, pluginStatePath), "-d", volumeTest, "--sock-name", pluginName, "--path", pluginStatePath}) plugin.WaitWithDefaultTimeout() Expect(plugin).Should(Exit(0)) volName := "testVolume1" create := podmanTest.Podman([]string{"volume", "create", "--driver", pluginName, volName}) create.WaitWithDefaultTimeout() Expect(create).Should(Exit(0)) volInspect := podmanTest.Podman([]string{"volume", "inspect", "--format", "{{ .Timeout }}", volName}) volInspect.WaitWithDefaultTimeout() Expect(volInspect).Should(Exit(0)) Expect(volInspect.OutputToString()).To(ContainSubstring("15")) volName2 := "testVolume2" create2 := podmanTest.Podman([]string{"volume", "create", "--driver", pluginName, "--opt", "o=timeout=3", volName2}) create2.WaitWithDefaultTimeout() Expect(create2).Should(Exit(0)) volInspect2 := podmanTest.Podman([]string{"volume", "inspect", "--format", "{{ .Timeout }}", volName2}) volInspect2.WaitWithDefaultTimeout() Expect(volInspect2).Should(Exit(0)) Expect(volInspect2.OutputToString()).To(ContainSubstring("3")) }) })