diff --git a/integration-cli/docker_cli_nat_test.go b/integration-cli/docker_cli_nat_test.go new file mode 100644 index 0000000000..d9dfaff556 --- /dev/null +++ b/integration-cli/docker_cli_nat_test.go @@ -0,0 +1,84 @@ +package main + +import ( + "encoding/json" + "fmt" + "github.com/dotcloud/docker/runtime" + "net" + "os/exec" + "path/filepath" + "testing" +) + +func TestNetworkNat(t *testing.T) { + ncPath, err := exec.LookPath("nc") + if err != nil { + t.Skip("Test not running with `make test`. Netcat not found: %s", err) + } + ncPath, err = filepath.EvalSymlinks(ncPath) + if err != nil { + t.Fatalf("Error resolving netcat symlink: %s", err) + } + iface, err := net.InterfaceByName("eth0") + if err != nil { + t.Skip("Test not running with `make test`. Interface eth0 not found: %s", err) + } + + ifaceAddrs, err := iface.Addrs() + if err != nil || len(ifaceAddrs) == 0 { + t.Fatalf("Error retrieving addresses for eth0: %v (%d addresses)", err, len(ifaceAddrs)) + } + + ifaceIp, _, err := net.ParseCIDR(ifaceAddrs[0].String()) + if err != nil { + t.Fatalf("Error retrieving the up for eth0: %s", err) + } + + runCmd := exec.Command(dockerBinary, "run", "-d", + "-v", ncPath+":/bin/nc", + "-v", "/lib/x86_64-linux-gnu/libc.so.6:/lib/libc.so.6", "-v", "/lib/x86_64-linux-gnu/libresolv.so.2:/lib/libresolv.so.2", "-v", "/lib/x86_64-linux-gnu/libbsd.so.0:/lib/libbsd.so.0", "-v", "/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2:/lib/ld-linux-x86-64.so.2", + "-p", "8080", "busybox", "/bin/nc", "-lp", "8080") + out, _, err := runCommandWithOutput(runCmd) + errorOut(err, t, fmt.Sprintf("run1 failed with errors: %v (%s)", err, out)) + + cleanedContainerID := stripTrailingCharacters(out) + + inspectCmd := exec.Command(dockerBinary, "inspect", cleanedContainerID) + inspectOut, _, err := runCommandWithOutput(inspectCmd) + errorOut(err, t, fmt.Sprintf("out should've been a container id: %v %v", inspectOut, err)) + + containers := []*runtime.Container{} + if err := json.Unmarshal([]byte(inspectOut), &containers); err != nil { + t.Fatalf("Error inspecting the container: %s", err) + } + if len(containers) != 1 { + t.Fatalf("Unepexted container count. Expected 0, recieved: %d", len(containers)) + } + + port8080, exists := containers[0].NetworkSettings.Ports["8080/tcp"] + if !exists || len(port8080) == 0 { + t.Fatal("Port 8080/tcp not found in NetworkSettings") + } + + runCmd = exec.Command(dockerBinary, "run", + "-v", ncPath+":/bin/nc", + "-v", "/lib/x86_64-linux-gnu/libc.so.6:/lib/libc.so.6", "-v", "/lib/x86_64-linux-gnu/libresolv.so.2:/lib/libresolv.so.2", "-v", "/lib/x86_64-linux-gnu/libbsd.so.0:/lib/libbsd.so.0", "-v", "/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2:/lib/ld-linux-x86-64.so.2", + "-p", "8080", "busybox", "sh", "-c", fmt.Sprintf("echo hello world | /bin/nc -w 30 %s %s", ifaceIp, port8080[0].HostPort)) + out, _, err = runCommandWithOutput(runCmd) + errorOut(err, t, fmt.Sprintf("run2 failed with errors: %v (%s)", err, out)) + + runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID) + out, _, err = runCommandWithOutput(runCmd) + errorOut(err, t, fmt.Sprintf("failed to retrieve logs for container: %v %v", cleanedContainerID, err)) + + if expected := "hello world\n"; out != expected { + t.Fatalf("Unexpected output. Expected: %s, recieved: -->%s<--", expected, out) + } + + killCmd := exec.Command(dockerBinary, "kill", cleanedContainerID) + out, _, err = runCommandWithOutput(killCmd) + errorOut(err, t, fmt.Sprintf("failed to kill container: %v %v", out, err)) + deleteAllContainers() + + logDone("network - make sure nat works through the host") +}