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Add test for --net container:<id>

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This adds an integration test for checking that the network namespace
fds are the same when a container joins another container's network
namespace.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Upstream-commit: 71209f75791fdc1a2124682f50cd00a413ddb143
Component: engine
This commit is contained in:
Michael Crosby
2014-11-18 15:10:07 -08:00
parent 616801a125
commit 259b05fa1e
1 changed files with 34 additions and 0 deletions
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34
components/engine/integration-cli/docker_cli_run_test.go
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@ -2638,3 +2638,37 @@ func TestRunModeIpcContainer(t *testing.T) {
logDone("run - hostname and several network modes")
}
func TestContainerNetworkMode(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-d", "busybox", "top")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
id := strings.TrimSpace(out)
if err := waitRun(id); err != nil {
t.Fatal(err)
}
pid1, err := inspectField(id, "State.Pid")
if err != nil {
t.Fatal(err)
}
parentContainerNet, err := os.Readlink(fmt.Sprintf("/proc/%s/ns/net", pid1))
if err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", fmt.Sprintf("--net=container:%s", id), "busybox", "readlink", "/proc/self/ns/net")
out2, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out2)
}
out2 = strings.Trim(out2, "\n")
if parentContainerNet != out2 {
t.Fatalf("NET different with --net=container:%s %s != %s\n", id, parentContainerNet, out2)
}
deleteAllContainers()
logDone("run - container shared network namespace")
}