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Add test for checking created directories on remapped root

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Signed-off-by: Antonis Kalipetis <akalipetis@gmail.com>
This commit is contained in:
Antonis Kalipetis 2016-09-05 13:02:13 +03:00
parent 72d8a77d52
commit c6bff578b4
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GPG key ID: 15691170DA0396BB
1 changed files with 13 additions and 1 deletions
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14
integration-cli/docker_cli_userns_test.go
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@ -7,11 +7,13 @@ import (
"io/ioutil"
"os"
"os/exec"
"path"
"path/filepath"
"strconv"
"strings"
"github.com/docker/docker/pkg/integration/checker"
"github.com/docker/docker/pkg/stringid"
"github.com/docker/docker/pkg/system"
"github.com/go-check/check"
)
@ -29,6 +31,10 @@ func (s *DockerDaemonSuite) TestDaemonUserNamespaceRootSetting(c *check.C) {
defer os.RemoveAll(tmpDir)
// Set a non-existent path
tmpDirNotExists := path.Join(os.TempDir(), "userns"+stringid.GenerateRandomID())
defer os.RemoveAll(tmpDirNotExists)
// we need to find the uid and gid of the remapped root from the daemon's root dir info
uidgid := strings.Split(filepath.Base(s.d.root), ".")
c.Assert(uidgid, checker.HasLen, 2, check.Commentf("Should have gotten uid/gid strings from root dirname: %s", filepath.Base(s.d.root)))
@ -40,11 +46,17 @@ func (s *DockerDaemonSuite) TestDaemonUserNamespaceRootSetting(c *check.C) {
// writable by the remapped root UID/GID pair
c.Assert(os.Chown(tmpDir, uid, gid), checker.IsNil)
out, err := s.d.Cmd("run", "-d", "--name", "userns", "-v", tmpDir+":/goofy", "busybox", "sh", "-c", "touch /goofy/testfile; top")
out, err := s.d.Cmd("run", "-d", "--name", "userns", "-v", tmpDir+":/goofy", "-v", tmpDirNotExists+":/donald", "busybox", "sh", "-c", "touch /goofy/testfile; top")
c.Assert(err, checker.IsNil, check.Commentf("Output: %s", out))
user := s.findUser(c, "userns")
c.Assert(uidgid[0], checker.Equals, user)
// check that the created directory is owned by remapped uid:gid
statNotExists, err := system.Stat(tmpDirNotExists)
c.Assert(err, checker.IsNil)
c.Assert(statNotExists.UID(), checker.Equals, uint32(uid), check.Commentf("Created directory not owned by remapped root UID"))
c.Assert(statNotExists.GID(), checker.Equals, uint32(gid), check.Commentf("Created directory not owned by remapped root GID"))
pid, err := s.d.Cmd("inspect", "--format={{.State.Pid}}", "userns")
c.Assert(err, checker.IsNil, check.Commentf("Could not inspect running container: out: %q", pid))
// check the uid and gid maps for the PID to ensure root is remapped