package main import ( "os/exec" "strings" "github.com/docker/docker/runconfig" "github.com/go-check/check" ) // GH14530. Validates combinations of --net= with other options // stringCheckPS is how the output of PS starts in order to validate that // the command executed in a container did really run PS correctly. const stringCheckPS = "PID USER" // checkContains is a helper function that validates a command output did // contain what was expected. func checkContains(expected string, out string, c *check.C) { if !strings.Contains(out, expected) { c.Fatalf("Expected '%s', got '%s'", expected, out) } } func (s *DockerSuite) TestNetHostname(c *check.C) { testRequires(c, DaemonIsLinux) var ( out string err error runCmd *exec.Cmd ) runCmd = exec.Command(dockerBinary, "run", "-h=name", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err != nil { c.Fatalf(out, err) } checkContains(stringCheckPS, out, c) runCmd = exec.Command(dockerBinary, "run", "--net=host", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err != nil { c.Fatalf(out, err) } checkContains(stringCheckPS, out, c) runCmd = exec.Command(dockerBinary, "run", "-h=name", "--net=bridge", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err != nil { c.Fatalf(out, err) } checkContains(stringCheckPS, out, c) runCmd = exec.Command(dockerBinary, "run", "-h=name", "--net=none", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err != nil { c.Fatalf(out, err) } checkContains(stringCheckPS, out, c) runCmd = exec.Command(dockerBinary, "run", "-h=name", "--net=host", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictNetworkHostname.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "-h=name", "--net=container:other", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err, c) } checkContains(runconfig.ErrConflictNetworkHostname.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=container", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err, c) } checkContains("--net: invalid net mode: invalid container format container:", out, c) runCmd = exec.Command(dockerBinary, "run", "--net=weird", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains("invalid --net: weird", out, c) } func (s *DockerSuite) TestConflictContainerNetworkAndLinks(c *check.C) { testRequires(c, DaemonIsLinux) var ( out string err error runCmd *exec.Cmd ) runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--link=zip:zap", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictContainerNetworkAndLinks.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=host", "--link=zip:zap", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictHostNetworkAndLinks.Error(), out, c) } func (s *DockerSuite) TestConflictNetworkModeAndOptions(c *check.C) { testRequires(c, DaemonIsLinux) var ( out string err error runCmd *exec.Cmd ) runCmd = exec.Command(dockerBinary, "run", "--net=host", "--dns=8.8.8.8", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictNetworkAndDNS.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--dns=8.8.8.8", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictNetworkAndDNS.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=host", "--add-host=name:8.8.8.8", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictNetworkHosts.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--add-host=name:8.8.8.8", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictNetworkHosts.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=host", "--mac-address=92:d0:c6:0a:29:33", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictContainerNetworkAndMac.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--mac-address=92:d0:c6:0a:29:33", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictContainerNetworkAndMac.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "-P", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictNetworkPublishPorts.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "-p", "8080", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictNetworkPublishPorts.Error(), out, c) runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--expose", "8000-9000", "busybox", "ps") if out, _, err = runCommandWithOutput(runCmd); err == nil { c.Fatalf(out, err) } checkContains(runconfig.ErrConflictNetworkExposePorts.Error(), out, c) }