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| 1 | +/* |
| 2 | + Copyright The containerd Authors. |
| 3 | +
|
| 4 | + Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + you may not use this file except in compliance with the License. |
| 6 | + You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | + Unless required by applicable law or agreed to in writing, software |
| 11 | + distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + See the License for the specific language governing permissions and |
| 14 | + limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package integration |
| 18 | + |
| 19 | +import ( |
| 20 | + "os" |
| 21 | + "strings" |
| 22 | + "testing" |
| 23 | + |
| 24 | + "github.com/containerd/cgroups/v3" |
| 25 | + "github.com/containerd/containerd/v2/core/mount" |
| 26 | + "github.com/containerd/containerd/v2/integration/images" |
| 27 | + "github.com/stretchr/testify/assert" |
| 28 | + "github.com/stretchr/testify/require" |
| 29 | +) |
| 30 | + |
| 31 | +func TestPrivilegedContainerCgroupMountOptions(t *testing.T) { |
| 32 | + if f := os.Getenv("RUNC_FLAVOR"); f == "crun" { |
| 33 | + t.Skip("Skipping until crun supports cgroup v2 mount options (https://github.com/containers/crun/pull/2040)") |
| 34 | + } |
| 35 | + if cgroups.Mode() != cgroups.Unified { |
| 36 | + t.Skip("Requires cgroup v2") |
| 37 | + } |
| 38 | + |
| 39 | + hostMountBefore, err := mount.Lookup("/sys/fs/cgroup") |
| 40 | + require.NoError(t, err) |
| 41 | + |
| 42 | + if !strings.Contains(hostMountBefore.VFSOptions, "nsdelegate") && !strings.Contains(hostMountBefore.VFSOptions, "memory_recursiveprot") { |
| 43 | + t.Skip("requires host cgroup mount to have nsdelegate or memory_recursiveprot") |
| 44 | + } |
| 45 | + |
| 46 | + testImage := images.Get(images.BusyBox) |
| 47 | + EnsureImageExists(t, testImage) |
| 48 | + |
| 49 | + t.Log("Create a sandbox with privileged=true") |
| 50 | + sb, sbConfig := PodSandboxConfigWithCleanup(t, "sandbox", "privileged-cgroup-mount-test", WithPodSecurityContext(true)) |
| 51 | + |
| 52 | + t.Log("Create a container with privileged=true") |
| 53 | + cnConfig := ContainerConfig("container", testImage, WithCommand("sh", "-c", "sleep 1d"), WithSecurityContext(true)) |
| 54 | + cn, err := runtimeService.CreateContainer(sb, cnConfig, sbConfig) |
| 55 | + require.NoError(t, err) |
| 56 | + t.Cleanup(func() { |
| 57 | + if err := runtimeService.RemoveContainer(cn); err != nil { |
| 58 | + t.Logf("failed to remove container %s: %v", cn, err) |
| 59 | + } |
| 60 | + }) |
| 61 | + |
| 62 | + t.Log("Start the container") |
| 63 | + require.NoError(t, runtimeService.StartContainer(cn)) |
| 64 | + t.Cleanup(func() { |
| 65 | + if err := runtimeService.StopContainer(cn, 10); err != nil { |
| 66 | + t.Logf("failed to stop container %s: %v", cn, err) |
| 67 | + } |
| 68 | + }) |
| 69 | + |
| 70 | + hostMountAfter, err := mount.Lookup("/sys/fs/cgroup") |
| 71 | + require.NoError(t, err) |
| 72 | + |
| 73 | + if strings.Contains(hostMountBefore.VFSOptions, "nsdelegate") { |
| 74 | + assert.Contains(t, hostMountAfter.VFSOptions, "nsdelegate", "nsdelegate should be preserved on the host cgroup mount") |
| 75 | + } |
| 76 | + if strings.Contains(hostMountBefore.VFSOptions, "memory_recursiveprot") { |
| 77 | + assert.Contains(t, hostMountAfter.VFSOptions, "memory_recursiveprot", "memory_recursiveprot should be preserved on the host cgroup mount") |
| 78 | + } |
| 79 | +} |
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