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67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
// +build !windows
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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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"os/exec"
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"path/filepath"
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"strings"
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"syscall"
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"testing"
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"github.com/docker/docker/pkg/mount"
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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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// cleanupMount unmounts the daemon root directory, or logs a message if
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// unmounting failed.
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func cleanupMount(t testing.TB, d *Daemon) {
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t.Helper()
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if err := mount.Unmount(d.Root); err != nil {
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d.log.Logf("[%s] unable to unmount daemon root (%s): %v", d.id, d.Root, err)
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}
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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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netnsPath := filepath.Join(d.execRoot, "netns")
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filepath.Walk(netnsPath, func(path string, info os.FileInfo, err 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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// SignalDaemonDump sends a signal to the daemon to write a dump file
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func SignalDaemonDump(pid int) {
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unix.Kill(pid, unix.SIGQUIT)
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}
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func signalDaemonReload(pid int) error {
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return unix.Kill(pid, unix.SIGHUP)
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}
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func setsid(cmd *exec.Cmd) {
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if cmd.SysProcAttr == nil {
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cmd.SysProcAttr = &syscall.SysProcAttr{}
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}
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cmd.SysProcAttr.Setsid = true
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}
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