package integration import ( "fmt" "os" "path/filepath" "github.com/containers/podman/v3/libpod/define" . "github.com/containers/podman/v3/test/utils" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" . "github.com/onsi/gomega/gexec" ) var _ = Describe("Podman init containers", 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) }) It("podman create init container without --pod should fail", func() { session := podmanTest.Podman([]string{"create", "--init-ctr", "always", ALPINE, "top"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(125)) }) It("podman create init container with bad init type should fail", func() { session := podmanTest.Podman([]string{"create", "--init-ctr", "unknown", "--pod", "new:foobar", ALPINE, "top"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(125)) }) It("podman init containers should not degrade pod status", func() { // create a pod topPod := podmanTest.Podman([]string{"create", "-t", "--pod", "new:foobar", ALPINE, "top"}) topPod.WaitWithDefaultTimeout() Expect(topPod).Should(Exit(0)) // add an init container session := podmanTest.Podman([]string{"create", "--init-ctr", "always", "--pod", "foobar", ALPINE, "date"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) // start a pod start := podmanTest.Podman([]string{"pod", "start", "foobar"}) start.WaitWithDefaultTimeout() Expect(start).Should(Exit(0)) inspect := podmanTest.Podman([]string{"pod", "inspect", "foobar"}) inspect.WaitWithDefaultTimeout() Expect(inspect).Should(Exit(0)) data := inspect.InspectPodToJSON() Expect(data.State).To(Equal(define.PodStateRunning)) }) It("podman create init container should fail in running pod", func() { // create a running pod topPod := podmanTest.Podman([]string{"run", "-dt", "--pod", "new:foobar", ALPINE, "top"}) topPod.WaitWithDefaultTimeout() Expect(topPod).Should(Exit(0)) // adding init-ctr to running pod should fail session := podmanTest.Podman([]string{"create", "--init-ctr", "always", "--pod", "foobar", ALPINE, "date"}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(125)) }) It("podman make sure init container runs before pod containers", func() { filename := filepath.Join("/dev/shm", RandomString(12)) content := RandomString(16) session := podmanTest.Podman([]string{"create", "--init-ctr", "always", "--pod", "new:foobar", ALPINE, "bin/sh", "-c", fmt.Sprintf("echo %s > %s", content, filename)}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) verify := podmanTest.Podman([]string{"create", "--pod", "foobar", "-t", ALPINE, "top"}) verify.WaitWithDefaultTimeout() Expect(verify).Should(Exit(0)) start := podmanTest.Podman([]string{"pod", "start", "foobar"}) start.WaitWithDefaultTimeout() Expect(start).Should(Exit(0)) checkLog := podmanTest.Podman([]string{"exec", "-it", verify.OutputToString(), "cat", filename}) checkLog.WaitWithDefaultTimeout() Expect(checkLog).Should(Exit(0)) Expect(checkLog.OutputToString()).To(Equal(content)) }) It("podman make sure once container is removed", func() { filename := filepath.Join("/dev/shm", RandomString(12)) content := RandomString(16) session := podmanTest.Podman([]string{"create", "--init-ctr", "once", "--pod", "new:foobar", ALPINE, "bin/sh", "-c", fmt.Sprintf("echo %s > %s", content, filename)}) session.WaitWithDefaultTimeout() initContainerID := session.OutputToString() Expect(session).Should(Exit(0)) verify := podmanTest.Podman([]string{"create", "--pod", "foobar", "-t", ALPINE, "top"}) verify.WaitWithDefaultTimeout() Expect(verify).Should(Exit(0)) start := podmanTest.Podman([]string{"pod", "start", "foobar"}) start.WaitWithDefaultTimeout() Expect(start).Should(Exit(0)) check := podmanTest.Podman([]string{"container", "exists", initContainerID}) check.WaitWithDefaultTimeout() // Container was rm'd //Expect(check).Should(Exit(1)) Expect(check.ExitCode()).To(Equal(1), "I dont understand why the other way does not work") // Lets double check with a stop and start stopPod := podmanTest.Podman([]string{"pod", "stop", "foobar"}) stopPod.WaitWithDefaultTimeout() Expect(stopPod).Should(Exit(0)) startPod := podmanTest.Podman([]string{"pod", "start", "foobar"}) startPod.WaitWithDefaultTimeout() Expect(startPod).Should(Exit(0)) // Because no init was run, the file should not even exist doubleCheck := podmanTest.Podman([]string{"exec", "-it", verify.OutputToString(), "cat", filename}) doubleCheck.WaitWithDefaultTimeout() Expect(doubleCheck).Should(Exit(1)) }) It("podman ensure always init containers always run", func() { filename := filepath.Join("/dev/shm", RandomString(12)) // Write the date to a file session := podmanTest.Podman([]string{"create", "--init-ctr", "always", "--pod", "new:foobar", fedoraMinimal, "bin/sh", "-c", "date +%T.%N > " + filename}) session.WaitWithDefaultTimeout() Expect(session).Should(Exit(0)) verify := podmanTest.Podman([]string{"create", "--pod", "foobar", "-t", ALPINE, "top"}) verify.WaitWithDefaultTimeout() Expect(verify).Should(Exit(0)) start := podmanTest.Podman([]string{"pod", "start", "foobar"}) start.WaitWithDefaultTimeout() Expect(start).Should(Exit(0)) // capture the date written checkLog := podmanTest.Podman([]string{"exec", "-it", verify.OutputToString(), "cat", filename}) checkLog.WaitWithDefaultTimeout() firstResult := checkLog.OutputToString() Expect(checkLog).Should(Exit(0)) // Stop and start the pod stopPod := podmanTest.Podman([]string{"pod", "stop", "foobar"}) stopPod.WaitWithDefaultTimeout() Expect(stopPod).Should(Exit(0)) startPod := podmanTest.Podman([]string{"pod", "start", "foobar"}) startPod.WaitWithDefaultTimeout() Expect(startPod).Should(Exit(0)) // Check the file again with exec secondCheckLog := podmanTest.Podman([]string{"exec", "-it", verify.OutputToString(), "cat", filename}) secondCheckLog.WaitWithDefaultTimeout() Expect(secondCheckLog).Should(Exit(0)) // Dates should not match Expect(firstResult).ToNot(Equal(secondCheckLog.OutputToString())) }) })