Added more checkpoint/restore test cases

This adds checkpoint/restore test cases for the newly added options
 * --leave-running
 * --tcp-established
 * --all
 * --latest

Signed-off-by: Adrian Reber <areber@redhat.com>

test/e2e/checkpoint_test.go

@@ -2,6 +2,7 @@ package integration
 
 import (
 	"fmt"
+	"net"
 	"os"
 
 	"github.com/containers/libpod/pkg/criu"
@@ -126,4 +127,164 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
 
 	})
+
+	It("podman checkpoint latest running container", func() {
+		session1 := podmanTest.Podman([]string{"run", "-it", "--security-opt", "seccomp=unconfined", "--name", "first", "-d", ALPINE, "top"})
+		session1.WaitWithDefaultTimeout()
+		Expect(session1.ExitCode()).To(Equal(0))
+
+		session2 := podmanTest.Podman([]string{"run", "-it", "--security-opt", "seccomp=unconfined", "--name", "second", "-d", ALPINE, "top"})
+		session2.WaitWithDefaultTimeout()
+		Expect(session2.ExitCode()).To(Equal(0))
+
+		result := podmanTest.Podman([]string{"container", "checkpoint", "-l"})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
+
+		ps := podmanTest.Podman([]string{"ps", "-q", "--no-trunc"})
+		ps.WaitWithDefaultTimeout()
+		Expect(ps.ExitCode()).To(Equal(0))
+		Expect(ps.LineInOutputContains(session1.OutputToString())).To(BeTrue())
+		Expect(ps.LineInOutputContains(session2.OutputToString())).To(BeFalse())
+
+		result = podmanTest.Podman([]string{"container", "restore", "-l"})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(2))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
+		Expect(podmanTest.GetContainerStatus()).To(Not(ContainSubstring("Exited")))
+
+		result = podmanTest.Podman([]string{"rm", "-fa"})
+		result.WaitWithDefaultTimeout()
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
+	})
+
+	It("podman checkpoint all running container", func() {
+		session1 := podmanTest.Podman([]string{"run", "-it", "--security-opt", "seccomp=unconfined", "--name", "first", "-d", ALPINE, "top"})
+		session1.WaitWithDefaultTimeout()
+		Expect(session1.ExitCode()).To(Equal(0))
+
+		session2 := podmanTest.Podman([]string{"run", "-it", "--security-opt", "seccomp=unconfined", "--name", "second", "-d", ALPINE, "top"})
+		session2.WaitWithDefaultTimeout()
+		Expect(session2.ExitCode()).To(Equal(0))
+
+		result := podmanTest.Podman([]string{"container", "checkpoint", "-a"})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
+
+		ps := podmanTest.Podman([]string{"ps", "-q", "--no-trunc"})
+		ps.WaitWithDefaultTimeout()
+		Expect(ps.ExitCode()).To(Equal(0))
+		Expect(ps.LineInOutputContains(session1.OutputToString())).To(BeFalse())
+		Expect(ps.LineInOutputContains(session2.OutputToString())).To(BeFalse())
+
+		result = podmanTest.Podman([]string{"container", "restore", "-a"})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(2))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
+		Expect(podmanTest.GetContainerStatus()).To(Not(ContainSubstring("Exited")))
+
+		result = podmanTest.Podman([]string{"rm", "-fa"})
+		result.WaitWithDefaultTimeout()
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
+	})
+
+	It("podman checkpoint container with established tcp connections", func() {
+		Skip("Seems to not work (yet) in CI")
+		podmanTest.RestoreArtifact(redis)
+		session := podmanTest.Podman([]string{"run", "-it", "--security-opt", "seccomp=unconfined", "--network", "host", "-d", redis})
+		session.WaitWithDefaultTimeout()
+		Expect(session.ExitCode()).To(Equal(0))
+
+		// Open a network connection to the redis server
+		conn, err := net.Dial("tcp", "127.0.0.1:6379")
+		if err != nil {
+			os.Exit(1)
+		}
+		// This should fail as the container has established TCP connections
+		result := podmanTest.Podman([]string{"container", "checkpoint", "-l"})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(125))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
+
+		// Now it should work thanks to "--tcp-established"
+		result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "--tcp-established"})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
+
+		// Restore should fail as the checkpoint image contains established TCP connections
+		result = podmanTest.Podman([]string{"container", "restore", "-l"})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(125))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
+
+		// Now it should work thanks to "--tcp-established"
+		result = podmanTest.Podman([]string{"container", "restore", "-l", "--tcp-established"})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
+
+		result = podmanTest.Podman([]string{"rm", "-fa"})
+		result.WaitWithDefaultTimeout()
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
+
+		conn.Close()
+	})
+
+	It("podman checkpoint with --leave-running", func() {
+		session := podmanTest.Podman([]string{"run", "-it", "--security-opt", "seccomp=unconfined", "-d", ALPINE, "top"})
+		session.WaitWithDefaultTimeout()
+		Expect(session.ExitCode()).To(Equal(0))
+		cid := session.OutputToString()
+
+		// Checkpoint container, but leave it running
+		result := podmanTest.Podman([]string{"container", "checkpoint", "--leave-running", cid})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		// Make sure it is still running
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
+
+		// Stop the container
+		result = podmanTest.Podman([]string{"container", "stop", cid})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
+
+		// Restore the stopped container from the previous checkpoint
+		result = podmanTest.Podman([]string{"container", "restore", cid})
+		result.WaitWithDefaultTimeout()
+
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
+		Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
+
+		result = podmanTest.Podman([]string{"rm", "-fa"})
+		result.WaitWithDefaultTimeout()
+		Expect(result.ExitCode()).To(Equal(0))
+		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
+	})
+
 })