spiegel_podman/test/e2e/checkpoint_test.go
Ed Santiago 547fff2703 e2e tests: use Should(Exit()) and ExitWithError()
e2e test failures are rife with messages like:

   Expected 1 to equal 0

These make me cry. They're anti-helpful, requiring the reader
to dive into the source code to figure out what those numbers
mean.

Solution: Go tests have a '.Should(Exit(NNN))' mechanism. I
don't know if it spits out a better diagnostic (I have no way
to run e2e tests on my laptop), but I have to fantasize that
it will, and given the state of our flakes I assume that at
least one test will fail and give me the opportunity to see
what the error message looks like.

THIS IS NOT REVIEWABLE CODE. There is no way for a human
to review it. Don't bother. Maybe look at a few random
ones for sanity. If you want to really review, here is
a reproducer of what I did:

   cd test/e2e
   ! positive assertions. The second is the same as the first,
   ! with the addition of (unnecessary) parentheses because
   ! some invocations were written that way. The third is BeZero().
   perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(Equal\((\d+)\)\)/Expect($1).Should(Exit($2))/' *_test.go
   perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(\(Equal\((\d+)\)\)\)/Expect($1).Should(Exit($2))/' *_test.go
   perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(BeZero\(\)\)/Expect($1).Should(Exit(0))/' *_test.go

   ! Same as above, but handles three non-numeric exit codes
   ! in run_exit_test.go
   perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(Equal\((\S+)\)\)/Expect($1).Should(Exit($2))/' *_test.go

   ! negative assertions. Difference is the spelling of 'To(Not)',
   ! 'ToNot', and 'NotTo'. I assume those are all the same.
   perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(Not\(Equal\((0)\)\)\)/Expect($1).To(ExitWithError())/' *_test.go
   perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.ToNot\(Equal\((0)\)\)/Expect($1).To(ExitWithError())/' *_test.go
   perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.NotTo\(Equal\((0)\)\)/Expect($1).To(ExitWithError())/' *_test.go
   ! negative, old use of BeZero()
   perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.ToNot\(BeZero\(\)\)/Expect($1).Should(ExitWithError())/' *_test.go

Run those on a clean copy of main branch (at the same branch
point as my PR, of course), then diff against a checked-out
copy of my PR. There should be no differences. Then all you
have to review is that my replacements above are sane.

UPDATE: nope, that's not enough, you also need to add gomega/gexec
to the files that don't have it:

   perl -pi -e '$_ .= "$1/gexec\"\n" if m!^(.*/onsi/gomega)"!' $(grep -L gomega/gexec $(git log -1 --stat | awk '$1 ~ /test\/e2e\// { print $1}'))

UPDATE 2: hand-edit run_volume_test.go

UPDATE 3: sigh, add WaitWithDefaultTimeout() to a couple of places

UPDATE 4: skip a test due to bug #10935 (race condition)

Signed-off-by: Ed Santiago <santiago@redhat.com>
2021-07-15 05:06:33 -06:00

980 lines
37 KiB
Go

package integration
import (
"net"
"os"
"os/exec"
"strings"
"github.com/containers/podman/v3/pkg/criu"
. "github.com/containers/podman/v3/test/utils"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/gexec"
)
func getRunString(input []string) []string {
// CRIU does not work with seccomp correctly on RHEL7 : seccomp=unconfined
runString := []string{"run", "-it", "--security-opt", "seccomp=unconfined", "-d", "--ip", GetRandomIPAddress()}
return append(runString, input...)
}
var _ = Describe("Podman checkpoint", func() {
var (
tempdir string
err error
podmanTest *PodmanTestIntegration
)
BeforeEach(func() {
SkipIfRemote("checkpoint not supported in remote mode")
SkipIfRootless("checkpoint not supported in rootless mode")
tempdir, err = CreateTempDirInTempDir()
if err != nil {
os.Exit(1)
}
podmanTest = PodmanTestCreate(tempdir)
podmanTest.Setup()
podmanTest.SeedImages()
// 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 !criu.CheckForCriu() {
Skip("CRIU is missing or too old.")
}
// Only Fedora 29 and newer has a new enough selinux-policy and
// container-selinux package to support CRIU in correctly
// restoring threaded processes
hostInfo := podmanTest.Host
if hostInfo.Distribution == "fedora" && hostInfo.Version < "29" {
Skip("Checkpoint/Restore with SELinux only works on Fedora >= 29")
}
})
AfterEach(func() {
podmanTest.Cleanup()
f := CurrentGinkgoTestDescription()
processTestResult(f)
})
It("podman checkpoint bogus container", func() {
session := podmanTest.Podman([]string{"container", "checkpoint", "foobar"})
session.WaitWithDefaultTimeout()
Expect(session).To(ExitWithError())
})
It("podman restore bogus container", func() {
session := podmanTest.Podman([]string{"container", "restore", "foobar"})
session.WaitWithDefaultTimeout()
Expect(session).To(ExitWithError())
})
It("podman checkpoint a running container by id", func() {
localRunString := getRunString([]string{ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
result := podmanTest.Podman([]string{"container", "checkpoint", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
result = podmanTest.Podman([]string{"container", "restore", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
})
It("podman checkpoint a running container by name", func() {
localRunString := getRunString([]string{"--name", "test_name", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
result := podmanTest.Podman([]string{"container", "checkpoint", "test_name"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
result = podmanTest.Podman([]string{"container", "restore", "test_name"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
})
It("podman pause a checkpointed container by id", func() {
localRunString := getRunString([]string{ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
result := podmanTest.Podman([]string{"container", "checkpoint", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
result = podmanTest.Podman([]string{"pause", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(125))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
result = podmanTest.Podman([]string{"container", "restore", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
result = podmanTest.Podman([]string{"rm", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(2))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
result = podmanTest.Podman([]string{"rm", "-f", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
It("podman checkpoint latest running container", func() {
localRunString := getRunString([]string{"--name", "first", ALPINE, "top"})
session1 := podmanTest.Podman(localRunString)
session1.WaitWithDefaultTimeout()
Expect(session1).Should(Exit(0))
localRunString = getRunString([]string{"--name", "second", ALPINE, "top"})
session2 := podmanTest.Podman(localRunString)
session2.WaitWithDefaultTimeout()
Expect(session2).Should(Exit(0))
result := podmanTest.Podman([]string{"container", "checkpoint", "-l"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
ps := podmanTest.Podman([]string{"ps", "-q", "--no-trunc"})
ps.WaitWithDefaultTimeout()
Expect(ps).Should(Exit(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).Should(Exit(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).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
It("podman checkpoint all running container", func() {
localRunString := getRunString([]string{"--name", "first", ALPINE, "top"})
session1 := podmanTest.Podman(localRunString)
session1.WaitWithDefaultTimeout()
Expect(session1).Should(Exit(0))
localRunString = getRunString([]string{"--name", "second", ALPINE, "top"})
session2 := podmanTest.Podman(localRunString)
session2.WaitWithDefaultTimeout()
Expect(session2).Should(Exit(0))
result := podmanTest.Podman([]string{"container", "checkpoint", "-a"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
ps := podmanTest.Podman([]string{"ps", "-q", "--no-trunc"})
ps.WaitWithDefaultTimeout()
Expect(ps).Should(Exit(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).Should(Exit(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).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
It("podman checkpoint container with established tcp connections", func() {
// Broken on Ubuntu.
SkipIfNotFedora()
localRunString := getRunString([]string{redis})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
IP := podmanTest.Podman([]string{"inspect", "-l", "--format={{.NetworkSettings.IPAddress}}"})
IP.WaitWithDefaultTimeout()
Expect(IP).Should(Exit(0))
// Open a network connection to the redis server
conn, err := net.Dial("tcp", IP.OutputToString()+":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).Should(Exit(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).Should(Exit(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).Should(Exit(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).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
result = podmanTest.Podman([]string{"rm", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
conn.Close()
})
It("podman checkpoint with --leave-running", func() {
localRunString := getRunString([]string{ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
// Checkpoint container, but leave it running
result := podmanTest.Podman([]string{"container", "checkpoint", "--leave-running", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(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).Should(Exit(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).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
result = podmanTest.Podman([]string{"rm", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
It("podman checkpoint and restore container with same IP", func() {
localRunString := getRunString([]string{"--name", "test_name", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
IPBefore := podmanTest.Podman([]string{"inspect", "-l", "--format={{.NetworkSettings.IPAddress}}"})
IPBefore.WaitWithDefaultTimeout()
Expect(IPBefore).Should(Exit(0))
MACBefore := podmanTest.Podman([]string{"inspect", "-l", "--format={{.NetworkSettings.MacAddress}}"})
MACBefore.WaitWithDefaultTimeout()
Expect(MACBefore).Should(Exit(0))
result := podmanTest.Podman([]string{"container", "checkpoint", "test_name"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
result = podmanTest.Podman([]string{"container", "restore", "test_name"})
result.WaitWithDefaultTimeout()
IPAfter := podmanTest.Podman([]string{"inspect", "-l", "--format={{.NetworkSettings.IPAddress}}"})
IPAfter.WaitWithDefaultTimeout()
Expect(IPAfter).Should(Exit(0))
MACAfter := podmanTest.Podman([]string{"inspect", "-l", "--format={{.NetworkSettings.MacAddress}}"})
MACAfter.WaitWithDefaultTimeout()
Expect(MACAfter).Should(Exit(0))
// Check that IP address did not change between checkpointing and restoring
Expect(IPBefore.OutputToString()).To(Equal(IPAfter.OutputToString()))
// Check that MAC address did not change between checkpointing and restoring
Expect(MACBefore.OutputToString()).To(Equal(MACAfter.OutputToString()))
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
result = podmanTest.Podman([]string{"rm", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
// This test does the same steps which are necessary for migrating
// a container from one host to another
It("podman checkpoint container with export (migration)", func() {
localRunString := getRunString([]string{"--rm", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
cid := session.OutputToString()
fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
result := podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName})
result.WaitWithDefaultTimeout()
// As the container has been started with '--rm' it will be completely
// cleaned up after checkpointing.
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore container the first time with different name.
// Using '--ignore-static-ip' as for parallel test runs
// each containers gets a random IP address via '--ip'.
// '--ignore-static-ip' tells the restore to use the next
// available IP address.
// First restore the container with a new name/ID to make
// sure nothing in the restored container depends on the
// original container.
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName, "-n", "restore_again", "--ignore-static-ip"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(2))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
result = podmanTest.Podman([]string{"rm", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Remove exported checkpoint
os.Remove(fileName)
})
// This test does the same steps which are necessary for migrating
// a container from one host to another
It("podman checkpoint container with export and different compression algorithms", func() {
localRunString := getRunString([]string{"--rm", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
cid := session.OutputToString()
fileName := "/tmp/checkpoint-" + cid + ".tar"
// Checkpoint with the default algorithm
result := podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName})
result.WaitWithDefaultTimeout()
// As the container has been started with '--rm' it will be completely
// cleaned up after checkpointing.
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore container
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Checkpoint with the zstd algorithm
result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName, "--compress", "zstd"})
result.WaitWithDefaultTimeout()
// As the container has been started with '--rm' it will be completely
// cleaned up after checkpointing.
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore container
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Checkpoint with the none algorithm
result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName, "-c", "none"})
result.WaitWithDefaultTimeout()
// As the container has been started with '--rm' it will be completely
// cleaned up after checkpointing.
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore container
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Checkpoint with the gzip algorithm
result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName, "-c", "gzip"})
result.WaitWithDefaultTimeout()
// As the container has been started with '--rm' it will be completely
// cleaned up after checkpointing.
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore container
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Checkpoint with the non-existing algorithm
result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName, "-c", "non-existing"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(125))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.NumberOfContainers()).To(Equal(1))
result = podmanTest.Podman([]string{"rm", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Remove exported checkpoint
os.Remove(fileName)
})
It("podman checkpoint and restore container with root file-system changes", func() {
// Start the container
localRunString := getRunString([]string{"--rm", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
cid := session.OutputToString()
fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
// Change the container's root file-system
result := podmanTest.Podman([]string{"exec", "-l", "/bin/sh", "-c", "echo test" + cid + "test > /test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
result = podmanTest.Podman([]string{"exec", "-l", "/bin/sh", "-c", "rm /etc/motd"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
result = podmanTest.Podman([]string{"diff", "-l"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(result.OutputToString()).To(ContainSubstring("C /etc"))
Expect(result.OutputToString()).To(ContainSubstring("A /test.output"))
Expect(result.OutputToString()).To(ContainSubstring("D /etc/motd"))
Expect(len(result.OutputToStringArray())).To(Equal(3))
// Checkpoint the container
result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore the container
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.NumberOfContainers()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Verify the changes to the container's root file-system
result = podmanTest.Podman([]string{"exec", "-l", "cat", "/test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(result.OutputToString()).To(ContainSubstring("test" + cid + "test"))
result = podmanTest.Podman([]string{"diff", "-l"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(result.OutputToString()).To(ContainSubstring("C /etc"))
Expect(result.OutputToString()).To(ContainSubstring("A /test.output"))
Expect(result.OutputToString()).To(ContainSubstring("D /etc/motd"))
Expect(len(result.OutputToStringArray())).To(Equal(3))
// Remove exported checkpoint
os.Remove(fileName)
})
It("podman checkpoint and restore container with root file-system changes using --ignore-rootfs during restore", func() {
// Start the container
localRunString := getRunString([]string{"--rm", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
cid := session.OutputToString()
fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
// Change the container's root file-system
result := podmanTest.Podman([]string{"exec", "-l", "/bin/sh", "-c", "echo test" + cid + "test > /test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
// Checkpoint the container
result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore the container
result = podmanTest.Podman([]string{"container", "restore", "--ignore-rootfs", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.NumberOfContainers()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Verify the changes to the container's root file-system
result = podmanTest.Podman([]string{"exec", "-l", "cat", "/test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(1))
Expect(result.ErrorToString()).To(ContainSubstring("cat: can't open '/test.output': No such file or directory"))
// Remove exported checkpoint
os.Remove(fileName)
})
It("podman checkpoint and restore container with root file-system changes using --ignore-rootfs during checkpoint", func() {
// Start the container
localRunString := getRunString([]string{"--rm", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
cid := session.OutputToString()
fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
// Change the container's root file-system
result := podmanTest.Podman([]string{"exec", "-l", "/bin/sh", "-c", "echo test" + cid + "test > /test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
// Checkpoint the container
result = podmanTest.Podman([]string{"container", "checkpoint", "--ignore-rootfs", "-l", "-e", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore the container
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.NumberOfContainers()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Verify the changes to the container's root file-system
result = podmanTest.Podman([]string{"exec", "-l", "cat", "/test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(1))
Expect(result.ErrorToString()).To(ContainSubstring("cat: can't open '/test.output': No such file or directory"))
// Remove exported checkpoint
os.Remove(fileName)
})
It("podman checkpoint and run exec in restored container", func() {
// Start the container
localRunString := getRunString([]string{"--rm", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
cid := session.OutputToString()
fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
// Checkpoint the container
result := podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore the container
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.NumberOfContainers()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Exec in the container
result = podmanTest.Podman([]string{"exec", "-l", "/bin/sh", "-c", "echo " + cid + " > /test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
result = podmanTest.Podman([]string{"exec", "-l", "cat", "/test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(result.OutputToString()).To(ContainSubstring(cid))
// Remove exported checkpoint
os.Remove(fileName)
})
It("podman checkpoint a container started with --rm", func() {
// Start the container
localRunString := getRunString([]string{"--rm", ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
cid := session.OutputToString()
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
// Checkpoint the container - this should fail as it was started with --rm
result := podmanTest.Podman([]string{"container", "checkpoint", "-l"})
result.WaitWithDefaultTimeout()
Expect(result).To(ExitWithError())
Expect(result.ErrorToString()).To(ContainSubstring("cannot checkpoint containers that have been started with '--rm'"))
// Checkpointing with --export should still work
fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName})
result.WaitWithDefaultTimeout()
// As the container has been started with '--rm' it will be completely
// cleaned up after checkpointing.
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
result = podmanTest.Podman([]string{"container", "restore", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
result = podmanTest.Podman([]string{"rm", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Remove exported checkpoint
os.Remove(fileName)
})
It("podman checkpoint a container with volumes", func() {
session := podmanTest.Podman([]string{
"build", "-f", "build/basicalpine/Containerfile.volume", "-t", "test-cr-volume",
})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
// Start the container
localRunString := getRunString([]string{
"--rm",
"-v", "/volume1",
"-v", "my-test-vol:/volume2",
"test-cr-volume",
"top",
})
session = podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
cid := session.OutputToString()
// Add file in volume0
result := podmanTest.Podman([]string{
"exec", "-l", "/bin/sh", "-c", "echo " + cid + " > /volume0/test.output",
})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
// Add file in volume1
result = podmanTest.Podman([]string{
"exec", "-l", "/bin/sh", "-c", "echo " + cid + " > /volume1/test.output",
})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
// Add file in volume2
result = podmanTest.Podman([]string{
"exec", "-l", "/bin/sh", "-c", "echo " + cid + " > /volume2/test.output",
})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
checkpointFileName := "/tmp/checkpoint-" + cid + ".tar.gz"
// Checkpoint the container
result = podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", checkpointFileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore container should fail because named volume still exists
result = podmanTest.Podman([]string{"container", "restore", "-i", checkpointFileName})
result.WaitWithDefaultTimeout()
Expect(result).To(ExitWithError())
Expect(result.ErrorToString()).To(ContainSubstring(
"volume with name my-test-vol already exists. Use --ignore-volumes to not restore content of volumes",
))
// Remove named volume
session = podmanTest.Podman([]string{"volume", "rm", "my-test-vol"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
// Restoring container
result = podmanTest.Podman([]string{"container", "restore", "-i", checkpointFileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.NumberOfContainers()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Validate volume0 content
result = podmanTest.Podman([]string{"exec", "-l", "cat", "/volume0/test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(result.OutputToString()).To(ContainSubstring(cid))
// Validate volume1 content
result = podmanTest.Podman([]string{"exec", "-l", "cat", "/volume1/test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(result.OutputToString()).To(ContainSubstring(cid))
// Validate volume2 content
result = podmanTest.Podman([]string{"exec", "-l", "cat", "/volume2/test.output"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(result.OutputToString()).To(ContainSubstring(cid))
// Remove exported checkpoint
os.Remove(checkpointFileName)
})
It("podman checkpoint container with --pre-checkpoint", func() {
if !strings.Contains(podmanTest.OCIRuntime, "runc") {
Skip("Test only works on runc 1.0-rc3 or higher.")
}
localRunString := getRunString([]string{ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
result := podmanTest.Podman([]string{"container", "checkpoint", "-P", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
result = podmanTest.Podman([]string{"container", "checkpoint", "--with-previous", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
result = podmanTest.Podman([]string{"container", "restore", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
})
It("podman checkpoint container with --pre-checkpoint and export (migration)", func() {
if !strings.Contains(podmanTest.OCIRuntime, "runc") {
Skip("Test only works on runc 1.0-rc3 or higher.")
}
localRunString := getRunString([]string{ALPINE, "top"})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
preCheckpointFileName := "/tmp/pre-checkpoint-" + cid + ".tar.gz"
checkpointFileName := "/tmp/checkpoint-" + cid + ".tar.gz"
result := podmanTest.Podman([]string{"container", "checkpoint", "-P", "-e", preCheckpointFileName, cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
result = podmanTest.Podman([]string{"container", "checkpoint", "--with-previous", "-e", checkpointFileName, cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Exited"))
result = podmanTest.Podman([]string{"rm", "-f", cid})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
result = podmanTest.Podman([]string{"container", "restore", "-i", checkpointFileName, "--import-previous", preCheckpointFileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
os.Remove(checkpointFileName)
os.Remove(preCheckpointFileName)
})
It("podman checkpoint and restore container with different port mappings", func() {
localRunString := getRunString([]string{"-p", "1234:6379", "--rm", redis})
session := podmanTest.Podman(localRunString)
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
// Open a network connection to the redis server via initial port mapping
conn, err := net.Dial("tcp", "localhost:1234")
if err != nil {
os.Exit(1)
}
conn.Close()
// Checkpoint the container
result := podmanTest.Podman([]string{"container", "checkpoint", "-l", "-e", fileName})
result.WaitWithDefaultTimeout()
// As the container has been started with '--rm' it will be completely
// cleaned up after checkpointing.
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Restore container with different port mapping
result = podmanTest.Podman([]string{"container", "restore", "-p", "1235:6379", "-i", fileName})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
Expect(podmanTest.GetContainerStatus()).To(ContainSubstring("Up"))
// Open a network connection to the redis server via initial port mapping
// This should fail
conn, err = net.Dial("tcp", "localhost:1234")
Expect(err.Error()).To(ContainSubstring("connection refused"))
// Open a network connection to the redis server via new port mapping
conn, err = net.Dial("tcp", "localhost:1235")
if err != nil {
os.Exit(1)
}
conn.Close()
result = podmanTest.Podman([]string{"rm", "-fa"})
result.WaitWithDefaultTimeout()
Expect(result).Should(Exit(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(podmanTest.NumberOfContainers()).To(Equal(0))
// Remove exported checkpoint
os.Remove(fileName)
})
})