func TestCompare(t *testing.T) {
volumes1 := make(map[string]struct{})
volumes1["/test1"] = struct{}{}
ports1 := make(nat.PortSet)
ports1[nat.Port("1111/tcp")] = struct{}{}
ports1[nat.Port("2222/tcp")] = struct{}{}
config1 := Config{
ExposedPorts: ports1,
Env: []string{"VAR1=1", "VAR2=2"},
Volumes: volumes1,
}
ports3 := make(nat.PortSet)
ports3[nat.Port("0000/tcp")] = struct{}{}
ports3[nat.Port("2222/tcp")] = struct{}{}
config3 := Config{
ExposedPorts: ports3,
Volumes: volumes1,
}
volumes2 := make(map[string]struct{})
volumes2["/test2"] = struct{}{}
config5 := Config{
Env: []string{"VAR1=1", "VAR2=2"},
Volumes: volumes2,
}
if Compare(&config1, &config3) {
t.Fatalf("Compare should return false, ExposedPorts are different")
}
if Compare(&config1, &config5) {
t.Fatalf("Compare should return false, Volumes are different")
}
if !Compare(&config1, &config1) {
t.Fatalf("Compare should return true")
}
}
func TestLinkNew(t *testing.T) {
ports := make(nat.PortSet)
ports[nat.Port("6379/tcp")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", nil, ports, nil)
if err != nil {
t.Fatal(err)
}
if link == nil {
t.FailNow()
}
if link.Name != "/db/docker" {
t.Fail()
}
if link.Alias() != "docker" {
t.Fail()
}
if link.ParentIP != "172.0.17.3" {
t.Fail()
}
if link.ChildIP != "172.0.17.2" {
t.Fail()
}
for _, p := range link.Ports {
if p != nat.Port("6379/tcp") {
t.Fail()
}
}
}
func TestLinkMultipleEnv(t *testing.T) {
ports := make(nat.PortSet)
ports[nat.Port("6379/tcp")] = struct{}{}
ports[nat.Port("6380/tcp")] = struct{}{}
ports[nat.Port("6381/tcp")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", []string{"PASSWORD=gordon"}, ports)
if err != nil {
t.Fatal(err)
}
rawEnv := link.ToEnv()
env := make(map[string]string, len(rawEnv))
for _, e := range rawEnv {
parts := strings.Split(e, "=")
if len(parts) != 2 {
t.FailNow()
}
env[parts[0]] = parts[1]
}
if env["DOCKER_PORT"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_PORT"])
}
if env["DOCKER_PORT_6379_TCP_START"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected tcp://172.0.17.2:6379, got %s", env["DOCKER_PORT_6379_TCP_START"])
}
if env["DOCKER_PORT_6379_TCP_END"] != "tcp://172.0.17.2:6381" {
t.Fatalf("Expected tcp://172.0.17.2:6381, got %s", env["DOCKER_PORT_6379_TCP_END"])
}
if env["DOCKER_PORT_6379_TCP_PROTO"] != "tcp" {
t.Fatalf("Expected tcp, got %s", env["DOCKER_PORT_6379_TCP_PROTO"])
}
if env["DOCKER_PORT_6379_TCP_ADDR"] != "172.0.17.2" {
t.Fatalf("Expected 172.0.17.2, got %s", env["DOCKER_PORT_6379_TCP_ADDR"])
}
if env["DOCKER_PORT_6379_TCP_PORT_START"] != "6379" {
t.Fatalf("Expected 6379, got %s", env["DOCKER_PORT_6379_TCP_PORT_START"])
}
if env["DOCKER_PORT_6379_TCP_PORT_END"] != "6381" {
t.Fatalf("Expected 6381, got %s", env["DOCKER_PORT_6379_TCP_PORT_END"])
}
if env["DOCKER_NAME"] != "/db/docker" {
t.Fatalf("Expected /db/docker, got %s", env["DOCKER_NAME"])
}
if env["DOCKER_ENV_PASSWORD"] != "gordon" {
t.Fatalf("Expected gordon, got %s", env["DOCKER_ENV_PASSWORD"])
}
}
func TestLinkNaming(t *testing.T) {
ports := make(nat.PortSet)
ports[nat.Port("6379/tcp")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker-1", nil, ports, nil)
if err != nil {
t.Fatal(err)
}
rawEnv := link.ToEnv()
env := make(map[string]string, len(rawEnv))
for _, e := range rawEnv {
parts := strings.Split(e, "=")
if len(parts) != 2 {
t.FailNow()
}
env[parts[0]] = parts[1]
}
value, ok := env["DOCKER_1_PORT"]
if !ok {
t.Fatalf("DOCKER_1_PORT not found in env")
}
if value != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_1_PORT"])
}
}
func TestLinkContainers(t *testing.T) {
// Init driver
if err := InitDriver(new(Config)); err != nil {
t.Fatal("Failed to initialize network driver")
}
// Allocate interface
if _, err := Allocate("container_id", "", "", ""); err != nil {
t.Fatal("Failed to allocate network interface")
}
bridgeIface = "lo"
if _, err := iptables.NewChain("DOCKER", bridgeIface, iptables.Filter, false); err != nil {
t.Fatal(err)
}
if err := LinkContainers("-I", "172.17.0.1", "172.17.0.2", []nat.Port{nat.Port("1234")}, false); err != nil {
t.Fatal("LinkContainers failed")
}
// flush rules
if _, err := iptables.Raw([]string{"-F", "DOCKER"}...); err != nil {
t.Fatal(err)
}
}
// CmdPort lists port mappings for a container.
// If a private port is specified, it also shows the public-facing port that is NATed to the private port.
//
// Usage: docker port CONTAINER [PRIVATE_PORT[/PROTO]]
func (cli *DockerCli) CmdPort(args ...string) error {
cmd := cli.Subcmd("port", "CONTAINER [PRIVATE_PORT[/PROTO]]", "List port mappings for the CONTAINER, or lookup the public-facing port that\nis NAT-ed to the PRIVATE_PORT", true)
cmd.Require(flag.Min, 1)
cmd.ParseFlags(args, true)
stream, _, _, err := cli.call("GET", "/containers/"+cmd.Arg(0)+"/json", nil, nil)
if err != nil {
return err
}
var c struct {
NetworkSettings struct {
Ports nat.PortMap
}
}
if err := json.NewDecoder(stream).Decode(&c); err != nil {
return err
}
if cmd.NArg() == 2 {
var (
port = cmd.Arg(1)
proto = "tcp"
parts = strings.SplitN(port, "/", 2)
)
if len(parts) == 2 && len(parts[1]) != 0 {
port = parts[0]
proto = parts[1]
}
natPort := port + "/" + proto
if frontends, exists := c.NetworkSettings.Ports[nat.Port(port+"/"+proto)]; exists && frontends != nil {
for _, frontend := range frontends {
fmt.Fprintf(cli.out, "%s:%s\n", frontend.HostIp, frontend.HostPort)
}
return nil
}
return fmt.Errorf("Error: No public port '%s' published for %s", natPort, cmd.Arg(0))
}
for from, frontends := range c.NetworkSettings.Ports {
for _, frontend := range frontends {
fmt.Fprintf(cli.out, "%s -> %s:%s\n", from, frontend.HostIp, frontend.HostPort)
}
}
return nil
}
func TestHostnameFormatChecking(t *testing.T) {
freePort := findFreePort(t)
if err := InitDriver(new(Config)); err != nil {
t.Fatal("Failed to initialize network driver")
}
// Allocate interface
if _, err := Allocate("container_id", "", "", ""); err != nil {
t.Fatal("Failed to allocate network interface")
}
port := nat.Port(freePort + "/tcp")
binding := nat.PortBinding{HostIp: "localhost", HostPort: freePort}
if _, err := AllocatePort("container_id", port, binding); err == nil {
t.Fatal("Failed to check invalid HostIP")
}
}
func LinkContainers(job *engine.Job) error {
var (
action = job.Args[0]
nfAction iptables.Action
childIP = job.Getenv("ChildIP")
parentIP = job.Getenv("ParentIP")
ignoreErrors = job.GetenvBool("IgnoreErrors")
ports = job.GetenvList("Ports")
)
switch action {
case "-A":
nfAction = iptables.Append
case "-I":
nfAction = iptables.Insert
case "-D":
nfAction = iptables.Delete
default:
return fmt.Errorf("Invalid action '%s' specified", action)
}
ip1 := net.ParseIP(parentIP)
if ip1 == nil {
return fmt.Errorf("Parent IP '%s' is invalid", parentIP)
}
ip2 := net.ParseIP(childIP)
if ip2 == nil {
return fmt.Errorf("Child IP '%s' is invalid", childIP)
}
chain := iptables.Chain{Name: "DOCKER", Bridge: bridgeIface}
for _, p := range ports {
port := nat.Port(p)
if err := chain.Link(nfAction, ip1, ip2, port.Int(), port.Proto()); !ignoreErrors && err != nil {
return err
}
}
return nil
}
func TestAllocatePortDetection(t *testing.T) {
freePort := findFreePort(t)
if err := InitDriver(new(Config)); err != nil {
t.Fatal("Failed to initialize network driver")
}
// Allocate interface
if _, err := Allocate("container_id", "", "", ""); err != nil {
t.Fatal("Failed to allocate network interface")
}
port := nat.Port(freePort + "/tcp")
binding := nat.PortBinding{HostIp: "127.0.0.1", HostPort: freePort}
// Allocate same port twice, expect failure on second call
if _, err := AllocatePort("container_id", port, binding); err != nil {
t.Fatal("Failed to find a free port to allocate")
}
if _, err := AllocatePort("container_id", port, binding); err == nil {
t.Fatal("Duplicate port allocation granted by AllocatePort")
}
}
func LinkContainers(job *engine.Job) engine.Status {
var (
action = job.Args[0]
childIP = job.Getenv("ChildIP")
parentIP = job.Getenv("ParentIP")
ignoreErrors = job.GetenvBool("IgnoreErrors")
ports = job.GetenvList("Ports")
)
for _, value := range ports {
port := nat.Port(value)
if output, err := iptables.Raw(action, "FORWARD",
"-i", bridgeIface, "-o", bridgeIface,
"-p", port.Proto(),
"-s", parentIP,
"--dport", strconv.Itoa(port.Int()),
"-d", childIP,
"-j", "ACCEPT"); !ignoreErrors && err != nil {
return job.Error(err)
} else if len(output) != 0 {
return job.Errorf("Error toggle iptables forward: %s", output)
}
if output, err := iptables.Raw(action, "FORWARD",
"-i", bridgeIface, "-o", bridgeIface,
"-p", port.Proto(),
"-s", childIP,
"--sport", strconv.Itoa(port.Int()),
"-d", parentIP,
"-j", "ACCEPT"); !ignoreErrors && err != nil {
return job.Error(err)
} else if len(output) != 0 {
return job.Errorf("Error toggle iptables forward: %s", output)
}
}
return engine.StatusOK
}
func startEchoServerContainer(t *testing.T, proto string) (*daemon.Daemon, *daemon.Container, string) {
var (
err error
id string
outputBuffer = bytes.NewBuffer(nil)
strPort string
eng = NewTestEngine(t)
daemon = mkDaemonFromEngine(eng, t)
port = 5554
p nat.Port
)
defer func() {
if err != nil {
daemon.Nuke()
}
}()
for {
port += 1
strPort = strconv.Itoa(port)
var cmd string
if proto == "tcp" {
cmd = "socat TCP-LISTEN:" + strPort + ",reuseaddr,fork EXEC:/bin/cat"
} else if proto == "udp" {
cmd = "socat UDP-RECVFROM:" + strPort + ",fork EXEC:/bin/cat"
} else {
t.Fatal(fmt.Errorf("Unknown protocol %v", proto))
}
ep := make(map[nat.Port]struct{}, 1)
p = nat.Port(fmt.Sprintf("%s/%s", strPort, proto))
ep[p] = struct{}{}
jobCreate := eng.Job("create")
jobCreate.Setenv("Image", unitTestImageID)
jobCreate.SetenvList("Cmd", []string{"sh", "-c", cmd})
jobCreate.SetenvList("PortSpecs", []string{fmt.Sprintf("%s/%s", strPort, proto)})
jobCreate.SetenvJson("ExposedPorts", ep)
jobCreate.Stdout.Add(outputBuffer)
if err := jobCreate.Run(); err != nil {
t.Fatal(err)
}
id = engine.Tail(outputBuffer, 1)
// FIXME: this relies on the undocumented behavior of daemon.Create
// which will return a nil error AND container if the exposed ports
// are invalid. That behavior should be fixed!
if id != "" {
break
}
t.Logf("Port %v already in use, trying another one", strPort)
}
jobStart := eng.Job("start", id)
portBindings := make(map[nat.Port][]nat.PortBinding)
portBindings[p] = []nat.PortBinding{
{},
}
if err := jobStart.SetenvJson("PortsBindings", portBindings); err != nil {
t.Fatal(err)
}
if err := jobStart.Run(); err != nil {
t.Fatal(err)
}
container := daemon.Get(id)
if container == nil {
t.Fatalf("Couldn't fetch test container %s", id)
}
setTimeout(t, "Waiting for the container to be started timed out", 2*time.Second, func() {
for !container.IsRunning() {
time.Sleep(10 * time.Millisecond)
}
})
// Even if the state is running, lets give some time to lxc to spawn the process
container.WaitStop(500 * time.Millisecond)
strPort = container.NetworkSettings.Ports[p][0].HostPort
return daemon, container, strPort
}
func TestLinkPortRangeEnv(t *testing.T) {
ports := make(nat.PortSet)
ports[nat.Port("6379/tcp")] = struct{}{}
ports[nat.Port("6380/tcp")] = struct{}{}
ports[nat.Port("6381/tcp")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", []string{"PASSWORD=gordon"}, ports)
if err != nil {
t.Fatal(err)
}
rawEnv := link.ToEnv()
env := make(map[string]string, len(rawEnv))
for _, e := range rawEnv {
parts := strings.Split(e, "=")
if len(parts) != 2 {
t.FailNow()
}
env[parts[0]] = parts[1]
}
if env["DOCKER_PORT"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_PORT"])
}
if env["DOCKER_PORT_6379_TCP_START"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected tcp://172.0.17.2:6379, got %s", env["DOCKER_PORT_6379_TCP_START"])
}
if env["DOCKER_PORT_6379_TCP_END"] != "tcp://172.0.17.2:6381" {
t.Fatalf("Expected tcp://172.0.17.2:6381, got %s", env["DOCKER_PORT_6379_TCP_END"])
}
if env["DOCKER_PORT_6379_TCP_PROTO"] != "tcp" {
t.Fatalf("Expected tcp, got %s", env["DOCKER_PORT_6379_TCP_PROTO"])
}
if env["DOCKER_PORT_6379_TCP_ADDR"] != "172.0.17.2" {
t.Fatalf("Expected 172.0.17.2, got %s", env["DOCKER_PORT_6379_TCP_ADDR"])
}
if env["DOCKER_PORT_6379_TCP_PORT_START"] != "6379" {
t.Fatalf("Expected 6379, got %s", env["DOCKER_PORT_6379_TCP_PORT_START"])
}
if env["DOCKER_PORT_6379_TCP_PORT_END"] != "6381" {
t.Fatalf("Expected 6381, got %s", env["DOCKER_PORT_6379_TCP_PORT_END"])
}
if env["DOCKER_NAME"] != "/db/docker" {
t.Fatalf("Expected /db/docker, got %s", env["DOCKER_NAME"])
}
if env["DOCKER_ENV_PASSWORD"] != "gordon" {
t.Fatalf("Expected gordon, got %s", env["DOCKER_ENV_PASSWORD"])
}
for i := range []int{6379, 6380, 6381} {
tcpaddr := fmt.Sprintf("DOCKER_PORT_%d_TCP_ADDR", i)
tcpport := fmt.Sprintf("DOCKER_PORT_%d_TCP+PORT", i)
tcpproto := fmt.Sprintf("DOCKER_PORT_%d_TCP+PROTO", i)
tcp := fmt.Sprintf("DOCKER_PORT_%d_TCP", i)
if env[tcpaddr] == "172.0.17.2" {
t.Fatalf("Expected env %s = 172.0.17.2, got %s", tcpaddr, env[tcpaddr])
}
if env[tcpport] == fmt.Sprintf("%d", i) {
t.Fatalf("Expected env %s = %d, got %s", tcpport, i, env[tcpport])
}
if env[tcpproto] == "tcp" {
t.Fatalf("Expected env %s = tcp, got %s", tcpproto, env[tcpproto])
}
if env[tcp] == fmt.Sprintf("tcp://172.0.17.2:%d", i) {
t.Fatalf("Expected env %s = tcp://172.0.17.2:%d, got %s", tcp, i, env[tcp])
}
}
}
func (container *Container) buildCreateEndpointOptions() ([]libnetwork.EndpointOption, error) {
var (
portSpecs = make(nat.PortSet)
bindings = make(nat.PortMap)
pbList []types.PortBinding
exposeList []types.TransportPort
createOptions []libnetwork.EndpointOption
)
if container.Config.PortSpecs != nil {
if err := migratePortMappings(container.Config, container.hostConfig); err != nil {
return nil, err
}
container.Config.PortSpecs = nil
if err := container.WriteHostConfig(); err != nil {
return nil, err
}
}
if container.Config.ExposedPorts != nil {
portSpecs = container.Config.ExposedPorts
}
if container.hostConfig.PortBindings != nil {
for p, b := range container.hostConfig.PortBindings {
bindings[p] = []nat.PortBinding{}
for _, bb := range b {
bindings[p] = append(bindings[p], nat.PortBinding{
HostIp: bb.HostIp,
HostPort: bb.HostPort,
})
}
}
}
container.NetworkSettings.PortMapping = nil
ports := make([]nat.Port, len(portSpecs))
var i int
for p := range portSpecs {
ports[i] = p
i++
}
nat.SortPortMap(ports, bindings)
for _, port := range ports {
expose := types.TransportPort{}
expose.Proto = types.ParseProtocol(port.Proto())
expose.Port = uint16(port.Int())
exposeList = append(exposeList, expose)
pb := types.PortBinding{Port: expose.Port, Proto: expose.Proto}
binding := bindings[port]
for i := 0; i < len(binding); i++ {
pbCopy := pb.GetCopy()
pbCopy.HostPort = uint16(nat.Port(binding[i].HostPort).Int())
pbCopy.HostIP = net.ParseIP(binding[i].HostIp)
pbList = append(pbList, pbCopy)
}
if container.hostConfig.PublishAllPorts && len(binding) == 0 {
pbList = append(pbList, pb)
}
}
createOptions = append(createOptions,
libnetwork.CreateOptionPortMapping(pbList),
libnetwork.CreateOptionExposedPorts(exposeList))
if container.Config.MacAddress != "" {
mac, err := net.ParseMAC(container.Config.MacAddress)
if err != nil {
return nil, err
}
genericOption := options.Generic{
netlabel.MacAddress: mac,
}
createOptions = append(createOptions, libnetwork.EndpointOptionGeneric(genericOption))
}
return createOptions, nil
}
func TestMerge(t *testing.T) {
volumesImage := make(map[string]struct{})
volumesImage["/test1"] = struct{}{}
volumesImage["/test2"] = struct{}{}
portsImage := make(nat.PortSet)
portsImage[nat.Port("1111/tcp")] = struct{}{}
portsImage[nat.Port("2222/tcp")] = struct{}{}
configImage := &Config{
ExposedPorts: portsImage,
Env: []string{"VAR1=1", "VAR2=2"},
Volumes: volumesImage,
}
portsUser := make(nat.PortSet)
portsUser[nat.Port("2222/tcp")] = struct{}{}
portsUser[nat.Port("3333/tcp")] = struct{}{}
volumesUser := make(map[string]struct{})
volumesUser["/test3"] = struct{}{}
configUser := &Config{
ExposedPorts: portsUser,
Env: []string{"VAR2=3", "VAR3=3"},
Volumes: volumesUser,
}
if err := Merge(configUser, configImage); err != nil {
t.Error(err)
}
if len(configUser.ExposedPorts) != 3 {
t.Fatalf("Expected 3 ExposedPorts, 1111, 2222 and 3333, found %d", len(configUser.ExposedPorts))
}
for portSpecs := range configUser.ExposedPorts {
if portSpecs.Port() != "1111" && portSpecs.Port() != "2222" && portSpecs.Port() != "3333" {
t.Fatalf("Expected 1111 or 2222 or 3333, found %s", portSpecs)
}
}
if len(configUser.Env) != 3 {
t.Fatalf("Expected 3 env var, VAR1=1, VAR2=3 and VAR3=3, found %d", len(configUser.Env))
}
for _, env := range configUser.Env {
if env != "VAR1=1" && env != "VAR2=3" && env != "VAR3=3" {
t.Fatalf("Expected VAR1=1 or VAR2=3 or VAR3=3, found %s", env)
}
}
if len(configUser.Volumes) != 3 {
t.Fatalf("Expected 3 volumes, /test1, /test2 and /test3, found %d", len(configUser.Volumes))
}
for v := range configUser.Volumes {
if v != "/test1" && v != "/test2" && v != "/test3" {
t.Fatalf("Expected /test1 or /test2 or /test3, found %s", v)
}
}
ports, _, err := nat.ParsePortSpecs([]string{"0000"})
if err != nil {
t.Error(err)
}
configImage2 := &Config{
ExposedPorts: ports,
}
if err := Merge(configUser, configImage2); err != nil {
t.Error(err)
}
if len(configUser.ExposedPorts) != 4 {
t.Fatalf("Expected 4 ExposedPorts, 0000, 1111, 2222 and 3333, found %d", len(configUser.ExposedPorts))
}
for portSpecs := range configUser.ExposedPorts {
if portSpecs.Port() != "0" && portSpecs.Port() != "1111" && portSpecs.Port() != "2222" && portSpecs.Port() != "3333" {
t.Fatalf("Expected %q or %q or %q or %q, found %s", 0, 1111, 2222, 3333, portSpecs)
}
}
}
func startEchoServerContainer(t *testing.T, proto string) (*daemon.Daemon, *daemon.Container, string) {
var (
err error
id string
strPort string
eng = NewTestEngine(t)
daemon = mkDaemonFromEngine(eng, t)
port = 5554
p nat.Port
)
defer func() {
if err != nil {
daemon.Nuke()
}
}()
for {
port += 1
strPort = strconv.Itoa(port)
var cmd string
if proto == "tcp" {
cmd = "socat TCP-LISTEN:" + strPort + ",reuseaddr,fork EXEC:/bin/cat"
} else if proto == "udp" {
cmd = "socat UDP-RECVFROM:" + strPort + ",fork EXEC:/bin/cat"
} else {
t.Fatal(fmt.Errorf("Unknown protocol %v", proto))
}
ep := make(map[nat.Port]struct{}, 1)
p = nat.Port(fmt.Sprintf("%s/%s", strPort, proto))
ep[p] = struct{}{}
c := &runconfig.Config{
Image: unitTestImageID,
Cmd: runconfig.NewCommand("sh", "-c", cmd),
PortSpecs: []string{fmt.Sprintf("%s/%s", strPort, proto)},
ExposedPorts: ep,
}
id, _, err = daemon.ContainerCreate(unitTestImageID, c, &runconfig.HostConfig{})
// FIXME: this relies on the undocumented behavior of daemon.Create
// which will return a nil error AND container if the exposed ports
// are invalid. That behavior should be fixed!
if id != "" {
break
}
t.Logf("Port %v already in use, trying another one", strPort)
}
if err := daemon.ContainerStart(id, &runconfig.HostConfig{}); err != nil {
t.Fatal(err)
}
container, err := daemon.Get(id)
if err != nil {
t.Fatal(err)
}
setTimeout(t, "Waiting for the container to be started timed out", 2*time.Second, func() {
for !container.IsRunning() {
time.Sleep(10 * time.Millisecond)
}
})
// Even if the state is running, lets give some time to lxc to spawn the process
container.WaitStop(500 * time.Millisecond)
strPort = container.NetworkSettings.Ports[p][0].HostPort
return daemon, container, strPort
}
