Merge pull request #13059 from cdoern/clone

Implement Podman Container Clone

1 files changed, 187 insertions, 0 deletions

diff --git a/test/e2e/container_clone_test.go b/test/e2e/container_clone_test.go
new file mode 100644
index 000000000..bebc6872b
--- /dev/null
+++ b/test/e2e/container_clone_test.go
@@ -0,0 +1,187 @@
+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 container clone", func() {
+	var (
+		tempdir    string
+		err        error
+		podmanTest *PodmanTestIntegration
+	)
+
+	BeforeEach(func() {
+		SkipIfRemote("podman container clone is not supported in remote")
+		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 container clone basic test", func() {
+		SkipIfRootlessCgroupsV1("starting a container with the memory limits not supported")
+		create := podmanTest.Podman([]string{"create", ALPINE})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+		clone := podmanTest.Podman([]string{"container", "clone", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		clone = podmanTest.Podman([]string{"container", "clone", clone.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		ctrInspect := podmanTest.Podman([]string{"inspect", clone.OutputToString()})
+		ctrInspect.WaitWithDefaultTimeout()
+		Expect(ctrInspect).To(Exit(0))
+		Expect(ctrInspect.InspectContainerToJSON()[0].Name).To(ContainSubstring("-clone1"))
+
+		ctrStart := podmanTest.Podman([]string{"container", "start", clone.OutputToString()})
+		ctrStart.WaitWithDefaultTimeout()
+		Expect(ctrStart).To(Exit(0))
+	})
+
+	It("podman container clone image test", func() {
+		create := podmanTest.Podman([]string{"create", ALPINE})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+		clone := podmanTest.Podman([]string{"container", "clone", create.OutputToString(), "new_name", fedoraMinimal})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		ctrInspect := podmanTest.Podman([]string{"inspect", clone.OutputToString()})
+		ctrInspect.WaitWithDefaultTimeout()
+		Expect(ctrInspect).To(Exit(0))
+		Expect(ctrInspect.InspectContainerToJSON()[0].ImageName).To(Equal(fedoraMinimal))
+		Expect(ctrInspect.InspectContainerToJSON()[0].Name).To(Equal("new_name"))
+	})
+
+	It("podman container clone name test", func() {
+		create := podmanTest.Podman([]string{"create", ALPINE})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+		clone := podmanTest.Podman([]string{"container", "clone", "--name", "testing123", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		cloneInspect := podmanTest.Podman([]string{"inspect", clone.OutputToString()})
+		cloneInspect.WaitWithDefaultTimeout()
+		Expect(cloneInspect).To(Exit(0))
+		cloneData := cloneInspect.InspectContainerToJSON()
+		Expect(cloneData[0].Name).To(Equal("testing123"))
+	})
+
+	It("podman container clone resource limits override", func() {
+		create := podmanTest.Podman([]string{"create", "--cpus=5", ALPINE})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+		clone := podmanTest.Podman([]string{"container", "clone", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		createInspect := podmanTest.Podman([]string{"inspect", create.OutputToString()})
+		createInspect.WaitWithDefaultTimeout()
+		Expect(createInspect).To(Exit(0))
+		createData := createInspect.InspectContainerToJSON()
+
+		cloneInspect := podmanTest.Podman([]string{"inspect", clone.OutputToString()})
+		cloneInspect.WaitWithDefaultTimeout()
+		Expect(cloneInspect).To(Exit(0))
+		cloneData := cloneInspect.InspectContainerToJSON()
+		Expect(createData[0].HostConfig.NanoCpus).To(Equal(cloneData[0].HostConfig.NanoCpus))
+
+		create = podmanTest.Podman([]string{"create", "--memory=5", ALPINE})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+		clone = podmanTest.Podman([]string{"container", "clone", "--cpus=6", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		createInspect = podmanTest.Podman([]string{"inspect", create.OutputToString()})
+		createInspect.WaitWithDefaultTimeout()
+		Expect(createInspect).To(Exit(0))
+		createData = createInspect.InspectContainerToJSON()
+
+		cloneInspect = podmanTest.Podman([]string{"inspect", clone.OutputToString()})
+		cloneInspect.WaitWithDefaultTimeout()
+		Expect(cloneInspect).To(Exit(0))
+		cloneData = cloneInspect.InspectContainerToJSON()
+		Expect(createData[0].HostConfig.MemorySwap).To(Equal(cloneData[0].HostConfig.MemorySwap))
+
+		create = podmanTest.Podman([]string{"create", "--cpus=5", ALPINE})
+		create.WaitWithDefaultTimeout()
+		Expect(create).To(Exit(0))
+		clone = podmanTest.Podman([]string{"container", "clone", "--cpus=4", create.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+
+		var nanoCPUs int64
+		numCpus := 4
+		nanoCPUs = int64(numCpus * 1000000000)
+
+		createInspect = podmanTest.Podman([]string{"inspect", create.OutputToString()})
+		createInspect.WaitWithDefaultTimeout()
+		Expect(createInspect).To(Exit(0))
+		createData = createInspect.InspectContainerToJSON()
+
+		cloneInspect = podmanTest.Podman([]string{"inspect", clone.OutputToString()})
+		cloneInspect.WaitWithDefaultTimeout()
+		Expect(cloneInspect).To(Exit(0))
+		cloneData = cloneInspect.InspectContainerToJSON()
+		Expect(createData[0].HostConfig.NanoCpus).ToNot(Equal(cloneData[0].HostConfig.NanoCpus))
+		Expect(cloneData[0].HostConfig.NanoCpus).To(Equal(nanoCPUs))
+	})
+
+	It("podman container clone in a pod", func() {
+		SkipIfRootlessCgroupsV1("starting a container with the memory limits not supported")
+		run := podmanTest.Podman([]string{"run", "-dt", "--pod", "new:1234", ALPINE, "sleep", "20"})
+		run.WaitWithDefaultTimeout()
+		Expect(run).To(Exit(0))
+		clone := podmanTest.Podman([]string{"container", "clone", run.OutputToString()})
+		clone.WaitWithDefaultTimeout()
+		Expect(clone).To(Exit(0))
+		ctrStart := podmanTest.Podman([]string{"container", "start", clone.OutputToString()})
+		ctrStart.WaitWithDefaultTimeout()
+		Expect(ctrStart).To(Exit(0))
+
+		checkClone := podmanTest.Podman([]string{"ps", "-f", "id=" + clone.OutputToString(), "--ns", "--format", "{{.Namespaces.IPC}} {{.Namespaces.UTS}} {{.Namespaces.NET}}"})
+		checkClone.WaitWithDefaultTimeout()
+		Expect(checkClone).Should(Exit(0))
+		cloneArray := checkClone.OutputToStringArray()
+
+		checkCreate := podmanTest.Podman([]string{"ps", "-f", "id=" + run.OutputToString(), "--ns", "--format", "{{.Namespaces.IPC}} {{.Namespaces.UTS}} {{.Namespaces.NET}}"})
+		checkCreate.WaitWithDefaultTimeout()
+		Expect(checkCreate).Should(Exit(0))
+		createArray := checkCreate.OutputToStringArray()
+
+		Expect(cloneArray).To(ContainElements(createArray[:]))
+
+		ctrInspect := podmanTest.Podman([]string{"inspect", clone.OutputToString()})
+		ctrInspect.WaitWithDefaultTimeout()
+		Expect(ctrInspect).Should(Exit(0))
+
+		runInspect := podmanTest.Podman([]string{"inspect", run.OutputToString()})
+		runInspect.WaitWithDefaultTimeout()
+		Expect(runInspect).Should(Exit(0))
+
+		Expect(ctrInspect.InspectContainerToJSON()[0].Pod).Should(Equal(runInspect.InspectContainerToJSON()[0].Pod))
+		Expect(ctrInspect.InspectContainerToJSON()[0].HostConfig.NetworkMode).Should(Equal(runInspect.InspectContainerToJSON()[0].HostConfig.NetworkMode))
+	})
+
+})