37 lines
1.0 KiB
Go
37 lines
1.0 KiB
Go
package daemon // import "github.com/docker/docker/testutil/daemon"
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"golang.org/x/sys/unix"
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"gotest.tools/v3/assert"
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)
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func cleanupNetworkNamespace(t testing.TB, d *Daemon) {
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t.Helper()
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// Cleanup network namespaces in the exec root of this
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// daemon because this exec root is specific to this
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// daemon instance and has no chance of getting
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// cleaned up when a new daemon is instantiated with a
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// new exec root.
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filepath.WalkDir(filepath.Join(d.execRoot, "netns"), func(path string, _ os.DirEntry, _ error) error {
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if err := unix.Unmount(path, unix.MNT_DETACH); err != nil && err != unix.EINVAL && err != unix.ENOENT {
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t.Logf("[%s] unmount of %s failed: %v", d.id, path, err)
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}
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os.Remove(path)
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return nil
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})
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}
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// CgroupNamespace returns the cgroup namespace the daemon is running in
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func (d *Daemon) CgroupNamespace(t testing.TB) string {
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link, err := os.Readlink(fmt.Sprintf("/proc/%d/ns/cgroup", d.Pid()))
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assert.NilError(t, err)
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return strings.TrimSpace(link)
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}
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