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test: enable --cgroup-parent test

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and fix it for running with runc.

Closes: https://github.com/containers/podman/issues/11165

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano
2021-09-10 10:06:45 +02:00
parent b603c7a4b9
commit b1768d3b08
2 changed files with 19 additions and 23 deletions
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32
test/e2e/run_cgroup_parent_test.go
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@ -13,6 +13,8 @@ import (
. "github.com/onsi/gomega/gexec"
)
const cgroupRoot = "/sys/fs/cgroup"
var _ = Describe("Podman run with --cgroup-parent", func() {
var (
tempdir string
@ -64,7 +66,6 @@ var _ = Describe("Podman run with --cgroup-parent", func() {
})
Specify("always honor --cgroup-parent", func() {
Skip("https://github.com/containers/podman/issues/11165")
SkipIfCgroupV1("test not supported in cgroups v1")
if Containerized() || podmanTest.CgroupManager == "cgroupfs" {
Skip("Requires Systemd cgroup manager support")
@ -78,36 +79,31 @@ var _ = Describe("Podman run with --cgroup-parent", func() {
Expect(run).Should(Exit(0))
cid := run.OutputToString()
exec := podmanTest.Podman([]string{"exec", cid, "cat", "/proc/self/cgroup"})
exec := podmanTest.Podman([]string{"exec", cid, "cat", "/proc/1/cgroup"})
exec.WaitWithDefaultTimeout()
Expect(exec).Should(Exit(0))
containerCgroup := strings.TrimRight(strings.Replace(exec.OutputToString(), "0::", "", -1), "\n")
content, err := ioutil.ReadFile(filepath.Join("/sys/fs/cgroup", containerCgroup, "cgroup.procs"))
Expect(err).To(BeNil())
// Move the container process to a sub cgroup
subCgroupPath := filepath.Join(filepath.Join("/sys/fs/cgroup", containerCgroup, "old-container"))
err = os.MkdirAll(subCgroupPath, 0755)
content, err := ioutil.ReadFile(filepath.Join(cgroupRoot, containerCgroup, "cgroup.procs"))
Expect(err).To(BeNil())
oldSubCgroupPath := filepath.Join(filepath.Join(cgroupRoot, containerCgroup, "old-container"))
err = os.MkdirAll(oldSubCgroupPath, 0755)
Expect(err).To(BeNil())
err = ioutil.WriteFile(filepath.Join(oldSubCgroupPath, "cgroup.procs"), content, 0644)
Expect(err).To(BeNil())
err = ioutil.WriteFile(filepath.Join(subCgroupPath, "cgroup.procs"), content, 0644)
newCgroup := fmt.Sprintf("%s/new-container", containerCgroup)
err = os.MkdirAll(filepath.Join(cgroupRoot, newCgroup), 0755)
Expect(err).To(BeNil())
cgroup := filepath.Dir(containerCgroup)
run = podmanTest.Podman([]string{"--cgroup-manager=cgroupfs", "run", "-d", fmt.Sprintf("--cgroup-parent=%s", cgroup), fedoraMinimal, "sleep", "100"})
run = podmanTest.Podman([]string{"--cgroup-manager=cgroupfs", "run", "--rm", "--cgroupns=host", fmt.Sprintf("--cgroup-parent=%s", newCgroup), fedoraMinimal, "cat", "/proc/self/cgroup"})
run.WaitWithDefaultTimeout()
Expect(run).Should(Exit(0))
cgroupEffective := strings.TrimRight(strings.Replace(run.OutputToString(), "0::", "", -1), "\n")
exec = podmanTest.Podman([]string{"exec", cid, "cat", "/proc/self/cgroup"})
exec.WaitWithDefaultTimeout()
Expect(exec).Should(Exit(0))
cgroupEffective := filepath.Dir(strings.TrimRight(strings.Replace(exec.OutputToString(), "0::", "", -1), "\n"))
Expect(cgroupEffective).To(Equal(cgroup))
Expect(newCgroup).To(Equal(filepath.Dir(cgroupEffective)))
})
Specify("valid --cgroup-parent using slice", func() {