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|
//go:build linux || freebsd
package integration
import (
"fmt"
"os/exec"
"strconv"
"strings"
"github.com/containers/podman/v5/pkg/criu"
. "github.com/containers/podman/v5/test/utils"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
var _ = Describe("Podman checkpoint", func() {
BeforeEach(func() {
SkipIfRootless("checkpoint not supported in rootless mode")
// Check if the runtime implements checkpointing. Currently only
// runc's checkpoint/restore implementation is supported.
cmd := exec.Command(podmanTest.OCIRuntime, "checkpoint", "--help")
if err := cmd.Start(); err != nil {
Skip("OCI runtime does not support checkpoint/restore")
}
if err := cmd.Wait(); err != nil {
Skip("OCI runtime does not support checkpoint/restore")
}
if err := criu.CheckForCriu(criu.MinCriuVersion); err != nil {
Skip(fmt.Sprintf("check CRIU version error: %v", err))
}
})
It("podman checkpoint --create-image with bogus container", func() {
checkpointImage := "foobar-checkpoint"
session := podmanTest.Podman([]string{"container", "checkpoint", "--create-image", checkpointImage, "foobar"})
session.WaitWithDefaultTimeout()
Expect(session).To(ExitWithError(125, `no container with name or ID "foobar" found: no such container`))
})
It("podman checkpoint --create-image with running container", func() {
// Container image must be lowercase
checkpointImage := "alpine-checkpoint-" + strings.ToLower(RandomString(6))
containerName := "alpine-container-" + RandomString(6)
localRunString := []string{
"run",
"-d",
"--ip", GetSafeIPAddress(),
"--name", containerName,
ALPINE,
"top",
}
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
containerID := session.OutputToString()
// Checkpoint image should not exist
session = podmanTest.Podman([]string{"images"})
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
Expect(session.LineInOutputContainsTag("localhost/"+checkpointImage, "latest")).To(BeFalse())
// Check if none of the checkpoint/restore specific information is displayed
// for newly started containers.
inspect := podmanTest.Podman([]string{"inspect", containerID})
inspect.WaitWithDefaultTimeout()
Expect(inspect).Should(ExitCleanly())
inspectOut := inspect.InspectContainerToJSON()
Expect(inspectOut[0].State.Checkpointed).To(BeFalse(), ".State.Checkpointed")
Expect(inspectOut[0].State.Restored).To(BeFalse(), ".State.Restored")
Expect(inspectOut[0].State).To(HaveField("CheckpointPath", ""))
Expect(inspectOut[0].State).To(HaveField("CheckpointLog", ""))
Expect(inspectOut[0].State).To(HaveField("RestoreLog", ""))
result := podmanTest.Podman([]string{"container", "checkpoint", "--create-image", checkpointImage, "--keep", containerID})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
inspect = podmanTest.Podman([]string{"inspect", containerID})
inspect.WaitWithDefaultTimeout()
Expect(inspect).Should(ExitCleanly())
inspectOut = inspect.InspectContainerToJSON()
Expect(inspectOut[0].State.Checkpointed).To(BeTrue(), ".State.Checkpointed")
Expect(inspectOut[0].State.CheckpointPath).To(ContainSubstring("userdata/checkpoint"))
Expect(inspectOut[0].State.CheckpointLog).To(ContainSubstring("userdata/dump.log"))
// Check if checkpoint image has been created
session = podmanTest.Podman([]string{"images"})
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
Expect(session.LineInOutputContainsTag("localhost/"+checkpointImage, "latest")).To(BeTrue())
// Check if the checkpoint image contains annotations
inspect = podmanTest.Podman([]string{"inspect", checkpointImage})
inspect.WaitWithDefaultTimeout()
Expect(inspect).Should(ExitCleanly())
inspectImageOut := inspect.InspectImageJSON()
Expect(inspectImageOut[0].Annotations["io.podman.annotations.checkpoint.name"]).To(
BeEquivalentTo(containerName),
"io.podman.annotations.checkpoint.name",
)
ociRuntimeName := ""
if strings.Contains(podmanTest.OCIRuntime, "runc") {
ociRuntimeName = "runc"
} else if strings.Contains(podmanTest.OCIRuntime, "crun") {
ociRuntimeName = "crun"
}
if ociRuntimeName != "" {
Expect(inspectImageOut[0].Annotations["io.podman.annotations.checkpoint.runtime.name"]).To(
BeEquivalentTo(ociRuntimeName),
"io.podman.annotations.checkpoint.runtime.name",
)
}
// Remove existing container
result = podmanTest.Podman([]string{"rm", "-t", "1", "-f", containerID})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
// Restore container from checkpoint image
result = podmanTest.Podman([]string{"container", "restore", checkpointImage})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Clean-up
result = podmanTest.Podman([]string{"rm", "-t", "0", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
result = podmanTest.Podman([]string{"rmi", checkpointImage})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
It("podman restore multiple containers from single checkpoint image", func() {
// Container image must be lowercase
checkpointImage := "alpine-checkpoint-" + strings.ToLower(RandomString(6))
containerName := "alpine-container-" + RandomString(6)
localRunString := []string{"run", "-d", "--name", containerName, ALPINE, "top"}
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
containerID := session.OutputToString()
// Checkpoint image should not exist
session = podmanTest.Podman([]string{"images"})
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
Expect(session.LineInOutputContainsTag("localhost/"+checkpointImage, "latest")).To(BeFalse())
result := podmanTest.Podman([]string{"container", "checkpoint", "--create-image", checkpointImage, "--keep", containerID})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
// Check if checkpoint image has been created
session = podmanTest.Podman([]string{"images"})
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
Expect(session.LineInOutputContainsTag("localhost/"+checkpointImage, "latest")).To(BeTrue())
// Remove existing container
result = podmanTest.Podman([]string{"rm", "-t", "1", "-f", containerID})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
for i := 1; i < 5; i++ {
// Restore container from checkpoint image
name := containerName + strconv.Itoa(i)
result = podmanTest.Podman([]string{"container", "restore", "--name", name, checkpointImage})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(i))
// Check that the container is running
status := podmanTest.Podman([]string{"inspect", name, "--format={{.State.Status}}"})
status.WaitWithDefaultTimeout()
Expect(status).Should(ExitCleanly())
Expect(status.OutputToString()).To(Equal("running"))
}
// Clean-up
result = podmanTest.Podman([]string{"rm", "-t", "0", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
result = podmanTest.Podman([]string{"rmi", checkpointImage})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
It("podman restore multiple containers from multiple checkpoint images", func() {
// Container image must be lowercase
checkpointImage1 := "alpine-checkpoint-" + strings.ToLower(RandomString(6))
checkpointImage2 := "alpine-checkpoint-" + strings.ToLower(RandomString(6))
containerName1 := "alpine-container-" + RandomString(6)
containerName2 := "alpine-container-" + RandomString(6)
// Create first container
localRunString := []string{"run", "-d", "--name", containerName1, ALPINE, "top"}
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
containerID1 := session.OutputToString()
// Create second container
localRunString = []string{"run", "-d", "--name", containerName2, ALPINE, "top"}
session = podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
containerID2 := session.OutputToString()
// Checkpoint first container
result := podmanTest.Podman([]string{"container", "checkpoint", "--create-image", checkpointImage1, "--keep", containerID1})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
// Checkpoint second container
result = podmanTest.Podman([]string{"container", "checkpoint", "--create-image", checkpointImage2, "--keep", containerID2})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
// Remove existing containers
result = podmanTest.Podman([]string{"rm", "-t", "1", "-f", containerName1, containerName2})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
// Restore both containers from images
result = podmanTest.Podman([]string{"container", "restore", checkpointImage1, checkpointImage2})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(2))
// Check if first container is running
status := podmanTest.Podman([]string{"inspect", containerName1, "--format={{.State.Status}}"})
status.WaitWithDefaultTimeout()
Expect(status).Should(ExitCleanly())
Expect(status.OutputToString()).To(Equal("running"))
// Check if second container is running
status = podmanTest.Podman([]string{"inspect", containerName2, "--format={{.State.Status}}"})
status.WaitWithDefaultTimeout()
Expect(status).Should(ExitCleanly())
Expect(status.OutputToString()).To(Equal("running"))
// Clean-up
result = podmanTest.Podman([]string{"rm", "-t", "0", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
result = podmanTest.Podman([]string{"rmi", checkpointImage1, checkpointImage2})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
It("podman run with checkpoint image", func() {
// Container image must be lowercase
checkpointImage := "alpine-checkpoint-" + strings.ToLower(RandomString(6))
containerName := "alpine-container-" + RandomString(6)
// Create container
localRunString := []string{"run", "-d", "--name", containerName, ALPINE, "top"}
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
containerID1 := session.OutputToString()
// Checkpoint container, create checkpoint image
result := podmanTest.Podman([]string{"container", "checkpoint", "--create-image", checkpointImage, "--keep", containerID1})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
// Remove existing container
result = podmanTest.Podman([]string{"rm", "-t", "1", "-f", containerName})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
// Restore containers from image using `podman run`
result = podmanTest.Podman([]string{"run", checkpointImage})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
// Check if the container is running
status := podmanTest.Podman([]string{"inspect", containerName, "--format={{.State.Status}}"})
status.WaitWithDefaultTimeout()
Expect(status).Should(ExitCleanly())
Expect(status.OutputToString()).To(Equal("running"))
// Clean-up
result = podmanTest.Podman([]string{"rm", "-t", "0", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
result = podmanTest.Podman([]string{"rmi", checkpointImage})
result.WaitWithDefaultTimeout()
Expect(result).Should(ExitCleanly())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
})
|
