mirror of https://github.com/containers/podman.git
121 lines
3.8 KiB
Go
121 lines
3.8 KiB
Go
package integration
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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. "github.com/containers/podman/v4/test/utils"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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. "github.com/onsi/gomega/gexec"
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)
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const cgroupRoot = "/sys/fs/cgroup"
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var _ = Describe("Podman run with --cgroup-parent", func() {
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var (
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tempdir string
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err error
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podmanTest *PodmanTestIntegration
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)
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BeforeEach(func() {
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SkipIfRootlessCgroupsV1("cgroup parent is not supported in cgroups v1")
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tempdir, err = CreateTempDirInTempDir()
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if err != nil {
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os.Exit(1)
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}
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podmanTest = PodmanTestCreate(tempdir)
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podmanTest.Setup()
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podmanTest.SeedImages()
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})
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AfterEach(func() {
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podmanTest.Cleanup()
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f := CurrentGinkgoTestDescription()
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processTestResult(f)
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})
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Specify("valid --cgroup-parent using cgroupfs", func() {
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if !Containerized() {
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Skip("Must be containerized to run this test.")
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}
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cgroup := "/zzz"
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run := podmanTest.Podman([]string{"run", "--cgroupns=host", "--cgroup-parent", cgroup, fedoraMinimal, "cat", "/proc/self/cgroup"})
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run.WaitWithDefaultTimeout()
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Expect(run).Should(Exit(0))
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Expect(run.OutputToString()).To(ContainSubstring(cgroup))
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})
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Specify("no --cgroup-parent", func() {
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cgroup := "/libpod_parent"
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if !Containerized() && podmanTest.CgroupManager != "cgroupfs" {
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if isRootless() {
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cgroup = "/user.slice"
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} else {
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cgroup = "/machine.slice"
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}
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}
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run := podmanTest.Podman([]string{"run", "--cgroupns=host", fedoraMinimal, "cat", "/proc/self/cgroup"})
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run.WaitWithDefaultTimeout()
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Expect(run).Should(Exit(0))
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Expect(run.OutputToString()).To(ContainSubstring(cgroup))
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})
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Specify("always honor --cgroup-parent", func() {
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SkipIfCgroupV1("test not supported in cgroups v1")
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if Containerized() || podmanTest.CgroupManager == "cgroupfs" {
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Skip("Requires Systemd cgroup manager support")
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}
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if IsRemote() {
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Skip("Not supported for remote")
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}
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run := podmanTest.Podman([]string{"run", "-d", "--cgroupns=host", fedoraMinimal, "sleep", "100"})
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run.WaitWithDefaultTimeout()
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Expect(run).Should(Exit(0))
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cid := run.OutputToString()
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exec := podmanTest.Podman([]string{"exec", cid, "cat", "/proc/1/cgroup"})
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exec.WaitWithDefaultTimeout()
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Expect(exec).Should(Exit(0))
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containerCgroup := strings.TrimRight(strings.Replace(exec.OutputToString(), "0::", "", -1), "\n")
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// Move the container process to a sub cgroup
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content, err := ioutil.ReadFile(filepath.Join(cgroupRoot, containerCgroup, "cgroup.procs"))
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Expect(err).To(BeNil())
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oldSubCgroupPath := filepath.Join(filepath.Join(cgroupRoot, containerCgroup, "old-container"))
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err = os.MkdirAll(oldSubCgroupPath, 0755)
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Expect(err).To(BeNil())
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err = ioutil.WriteFile(filepath.Join(oldSubCgroupPath, "cgroup.procs"), content, 0644)
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Expect(err).To(BeNil())
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newCgroup := fmt.Sprintf("%s/new-container", containerCgroup)
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err = os.MkdirAll(filepath.Join(cgroupRoot, newCgroup), 0755)
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Expect(err).To(BeNil())
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run = podmanTest.Podman([]string{"--cgroup-manager=cgroupfs", "run", "--rm", "--cgroupns=host", fmt.Sprintf("--cgroup-parent=%s", newCgroup), fedoraMinimal, "cat", "/proc/self/cgroup"})
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run.WaitWithDefaultTimeout()
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Expect(run).Should(Exit(0))
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cgroupEffective := strings.TrimRight(strings.Replace(run.OutputToString(), "0::", "", -1), "\n")
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Expect(newCgroup).To(Equal(filepath.Dir(cgroupEffective)))
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})
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Specify("valid --cgroup-parent using slice", func() {
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if Containerized() || podmanTest.CgroupManager == "cgroupfs" {
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Skip("Requires Systemd cgroup manager support")
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}
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cgroup := "aaaa.slice"
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run := podmanTest.Podman([]string{"run", "--cgroupns=host", "--cgroup-parent", cgroup, fedoraMinimal, "cat", "/proc/1/cgroup"})
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run.WaitWithDefaultTimeout()
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Expect(run).Should(Exit(0))
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Expect(run.OutputToString()).To(ContainSubstring(cgroup))
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})
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})
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