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add a test for ensuring the behavior of read-only /dev/shm

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The test ensures that `docker run --read-only -v /var/empty:/dev/shm:ro`
makes /dev/shm read-only

Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
This commit is contained in:
Akihiro Suda 2016-11-25 05:54:38 +00:00
parent b8e3a28d65
commit 46ade6acb5
1 changed files with 13 additions and 0 deletions
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13
integration-cli/docker_cli_run_test.go
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@ -4879,3 +4879,16 @@ func (s *delayedReader) Read([]byte) (int, error) {
time.Sleep(500 * time.Millisecond)
return 0, io.EOF
}
// #28823 (originally #28639)
func (s *DockerSuite) TestRunMountReadOnlyDevShm(c *check.C) {
testRequires(c, SameHostDaemon, DaemonIsLinux)
emptyDir, err := ioutil.TempDir("", "test-read-only-dev-shm")
c.Assert(err, check.IsNil)
defer os.RemoveAll(emptyDir)
out, _, err := dockerCmdWithError("run", "--rm", "--read-only",
"-v", fmt.Sprintf("%s:/dev/shm:ro", emptyDir),
"busybox", "touch", "/dev/shm/foo")
c.Assert(err, checker.NotNil, check.Commentf(out))
c.Assert(out, checker.Contains, "Read-only file system")
}