podman pod clone

implement podman pod clone, a command to create an exact copy of a pod while changing
certain config elements

current supported flags are:
--name change the pod name
--destroy remove the original pod
--start run the new pod on creation
and all infra-container related flags from podman pod create (namespaces etc)

resolves #12843

Signed-off-by: cdoern <cdoern@redhat.com>

1 files changed, 141 insertions, 0 deletions

diff --git a/test/e2e/pod_clone_test.go b/test/e2e/pod_clone_test.go
new file mode 100644
index 000000000..b62e1205c
--- /dev/null
+++ b/test/e2e/pod_clone_test.go
@@ -0,0 +1,141 @@
+package integration
+
+import (
+	"os"
+
+	. "github.com/containers/podman/v4/test/utils"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	. "github.com/onsi/gomega/gexec"
+)
+
+var _ = Describe("Podman pod clone", func() {
+	var (
+		tempdir    string
+		err        error
+		podmanTest *PodmanTestIntegration
+	)
+
+	BeforeEach(func() {
+		SkipIfRemote("podman pod clone is not supported in remote")
+		tempdir, err = CreateTempDirInTempDir()
+		if err != nil {
+			os.Exit(1)
+		}
+		podmanTest = PodmanTestCreate(tempdir)
+		podmanTest.Setup()
+	})
+
+	AfterEach(func() {
+		podmanTest.Cleanup()
+		f := CurrentGinkgoTestDescription()
+		processTestResult(f)
+
+	})
+
+	It("podman pod clone basic test", func() {
+		create := podmanTest.Podman([]string{"pod", "create", "--name", "1"})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+
+		run := podmanTest.Podman([]string{"run", "--pod", "1", "-dt", ALPINE})
+		run.WaitWithDefaultTimeout()
+		Expect(run).To(Exit(0))
+
+		clone := podmanTest.Podman([]string{"pod", "clone", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		podInspect := podmanTest.Podman([]string{"pod", "inspect", clone.OutputToString()})
+		podInspect.WaitWithDefaultTimeout()
+		Expect(podInspect).To(Exit(0))
+		data := podInspect.InspectPodToJSON()
+		Expect(data.Name).To(ContainSubstring("-clone"))
+
+		podStart := podmanTest.Podman([]string{"pod", "start", clone.OutputToString()})
+		podStart.WaitWithDefaultTimeout()
+		Expect(podStart).To(Exit(0))
+
+		podInspect = podmanTest.Podman([]string{"pod", "inspect", clone.OutputToString()})
+		podInspect.WaitWithDefaultTimeout()
+		Expect(podInspect).To(Exit(0))
+		data = podInspect.InspectPodToJSON()
+		Expect(data.Containers[1].State).To(ContainSubstring("running")) // make sure non infra ctr is running
+	})
+
+	It("podman pod clone renaming test", func() {
+		create := podmanTest.Podman([]string{"pod", "create", "--name", "1"})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+
+		clone := podmanTest.Podman([]string{"pod", "clone", "--name", "2", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		podInspect := podmanTest.Podman([]string{"pod", "inspect", clone.OutputToString()})
+		podInspect.WaitWithDefaultTimeout()
+		Expect(podInspect).To(Exit(0))
+		data := podInspect.InspectPodToJSON()
+		Expect(data.Name).To(ContainSubstring("2"))
+
+		podStart := podmanTest.Podman([]string{"pod", "start", clone.OutputToString()})
+		podStart.WaitWithDefaultTimeout()
+		Expect(podStart).To(Exit(0))
+	})
+
+	It("podman pod clone start test", func() {
+		create := podmanTest.Podman([]string{"pod", "create", "--name", "1"})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+
+		clone := podmanTest.Podman([]string{"pod", "clone", "--start", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		podInspect := podmanTest.Podman([]string{"pod", "inspect", clone.OutputToString()})
+		podInspect.WaitWithDefaultTimeout()
+		Expect(podInspect).To(Exit(0))
+		data := podInspect.InspectPodToJSON()
+		Expect(data.State).To(ContainSubstring("Running"))
+
+	})
+
+	It("podman pod clone destroy test", func() {
+		create := podmanTest.Podman([]string{"pod", "create", "--name", "1"})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+
+		clone := podmanTest.Podman([]string{"pod", "clone", "--destroy", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		podInspect := podmanTest.Podman([]string{"pod", "inspect", create.OutputToString()})
+		podInspect.WaitWithDefaultTimeout()
+		Expect(podInspect).ToNot(Exit(0))
+	})
+
+	It("podman pod clone infra option test", func() {
+		// proof of concept that all currently tested infra options work since
+
+		volName := "testVol"
+		volCreate := podmanTest.Podman([]string{"volume", "create", volName})
+		volCreate.WaitWithDefaultTimeout()
+		Expect(volCreate).Should(Exit(0))
+
+		podName := "testPod"
+		podCreate := podmanTest.Podman([]string{"pod", "create", "--name", podName})
+		podCreate.WaitWithDefaultTimeout()
+		Expect(podCreate).Should(Exit(0))
+
+		podClone := podmanTest.Podman([]string{"pod", "clone", "--volume", volName + ":/tmp1", podName})
+		podClone.WaitWithDefaultTimeout()
+		Expect(podClone).Should(Exit(0))
+
+		podInspect := podmanTest.Podman([]string{"pod", "inspect", "testPod-clone"})
+		podInspect.WaitWithDefaultTimeout()
+		Expect(podInspect).Should(Exit(0))
+		data := podInspect.InspectPodToJSON()
+		Expect(data.Mounts[0]).To(HaveField("Name", volName))
+	})
+
+})