func (daemon *Daemon) updateNetworkSettings(container *container.Container, n libnetwork.Network) error {
	if container.NetworkSettings == nil {
		container.NetworkSettings = &network.Settings{Networks: make(map[string]*networktypes.EndpointSettings)}
	}

	if !container.HostConfig.NetworkMode.IsHost() && containertypes.NetworkMode(n.Type()).IsHost() {
		return runconfig.ErrConflictHostNetwork
	}

	for s := range container.NetworkSettings.Networks {
		sn, err := daemon.FindNetwork(s)
		if err != nil {
			continue
		}

		if sn.Name() == n.Name() {
			// Avoid duplicate config
			return nil
		}
		if !containertypes.NetworkMode(sn.Type()).IsPrivate() ||
			!containertypes.NetworkMode(n.Type()).IsPrivate() {
			return runconfig.ErrConflictSharedNetwork
		}
		if containertypes.NetworkMode(sn.Name()).IsNone() ||
			containertypes.NetworkMode(n.Name()).IsNone() {
			return runconfig.ErrConflictNoNetwork
		}
	}

	if _, ok := container.NetworkSettings.Networks[n.Name()]; !ok {
		container.NetworkSettings.Networks[n.Name()] = new(networktypes.EndpointSettings)
	}

	return nil
}
func TestModifyHostConfigWithSandboxID(t *testing.T) {
	priv := true
	sandboxID := "sandbox"
	sandboxNSMode := fmt.Sprintf("container:%v", sandboxID)
	setPrivSC := &runtimeapi.LinuxContainerSecurityContext{}
	setPrivSC.Privileged = &priv
	setPrivHC := &dockercontainer.HostConfig{
		Privileged:  true,
		IpcMode:     dockercontainer.IpcMode(sandboxNSMode),
		NetworkMode: dockercontainer.NetworkMode(sandboxNSMode),
	}
	setCapsHC := &dockercontainer.HostConfig{
		CapAdd:      []string{"addCapA", "addCapB"},
		CapDrop:     []string{"dropCapA", "dropCapB"},
		IpcMode:     dockercontainer.IpcMode(sandboxNSMode),
		NetworkMode: dockercontainer.NetworkMode(sandboxNSMode),
	}
	setSELinuxHC := &dockercontainer.HostConfig{
		SecurityOpt: []string{
			fmt.Sprintf("%s:%s", securitycontext.DockerLabelUser, "user"),
			fmt.Sprintf("%s:%s", securitycontext.DockerLabelRole, "role"),
			fmt.Sprintf("%s:%s", securitycontext.DockerLabelType, "type"),
			fmt.Sprintf("%s:%s", securitycontext.DockerLabelLevel, "level"),
		},
		IpcMode:     dockercontainer.IpcMode(sandboxNSMode),
		NetworkMode: dockercontainer.NetworkMode(sandboxNSMode),
	}

	cases := []struct {
		name     string
		sc       *runtimeapi.LinuxContainerSecurityContext
		expected *dockercontainer.HostConfig
	}{
		{
			name:     "container.SecurityContext.Privileged",
			sc:       setPrivSC,
			expected: setPrivHC,
		},
		{
			name: "container.SecurityContext.Capabilities",
			sc: &runtimeapi.LinuxContainerSecurityContext{
				Capabilities: inputCapabilities(),
			},
			expected: setCapsHC,
		},
		{
			name: "container.SecurityContext.SELinuxOptions",
			sc: &runtimeapi.LinuxContainerSecurityContext{
				SelinuxOptions: inputSELinuxOptions(),
			},
			expected: setSELinuxHC,
		},
	}

	for _, tc := range cases {
		dockerCfg := &dockercontainer.HostConfig{}
		modifyHostConfig(tc.sc, sandboxID, dockerCfg)
		assert.Equal(t, tc.expected, dockerCfg, "[Test case %q]", tc.name)
	}
}
Beispiel #3
0
// SetDefaultNetModeIfBlank changes the NetworkMode in a HostConfig structure
// to default if it is not populated. This ensures backwards compatibility after
// the validation of the network mode was moved from the docker CLI to the
// docker daemon.
func SetDefaultNetModeIfBlank(hc *container.HostConfig) *container.HostConfig {
	if hc != nil {
		if hc.NetworkMode == container.NetworkMode("") {
			hc.NetworkMode = container.NetworkMode("default")
		}
	}
	return hc
}
Beispiel #4
0
func TestPortFilterForHostMode(t *testing.T) {
	var (
		p     = PortFilter{}
		nodes = []*node.Node{
			{
				ID:   "node-1-id",
				Name: "node-1-name",
				Addr: "node-1",
			},
			{
				ID:   "node-2-id",
				Name: "node-2-name",
				Addr: "node-2",
			},
			{
				ID:   "node-3-id",
				Name: "node-3-name",
				Addr: "node-3",
			},
		}
		result []*node.Node
		err    error
	)

	// Add a container taking away port 80 in the host mode to nodes[0].
	container := &cluster.Container{
		Container: types.Container{ID: "c1"},
		Info: types.ContainerJSON{
			Config: &containertypes.Config{
				ExposedPorts: map[nat.Port]struct{}{nat.Port("80"): {}},
			},
			ContainerJSONBase: &types.ContainerJSONBase{
				HostConfig: &containertypes.HostConfig{
					NetworkMode: containertypes.NetworkMode("host"),
				},
			},
		}}

	assert.NoError(t, nodes[0].AddContainer(container))

	// Request port 80 in the host mode
	config := &cluster.ContainerConfig{Config: containertypes.Config{
		ExposedPorts: map[nat.Port]struct{}{nat.Port("80"): {}},
	}, HostConfig: containertypes.HostConfig{
		NetworkMode: containertypes.NetworkMode("host"),
	}, NetworkingConfig: networktypes.NetworkingConfig{}}

	// nodes[0] should be excluded since port 80 is taken away
	result, err = p.Filter(config, nodes, true)
	assert.NoError(t, err)
	assert.Equal(t, 2, len(result))
	assert.NotContains(t, result, nodes[0])
}
func (daemon *Daemon) updateNetworkConfig(container *container.Container, idOrName string, endpointConfig *networktypes.EndpointSettings, updateSettings bool) (libnetwork.Network, error) {
	if container.HostConfig.NetworkMode.IsContainer() {
		return nil, runconfig.ErrConflictSharedNetwork
	}

	if containertypes.NetworkMode(idOrName).IsBridge() &&
		daemon.configStore.DisableBridge {
		container.Config.NetworkDisabled = true
		return nil, nil
	}

	if !containertypes.NetworkMode(idOrName).IsUserDefined() {
		if hasUserDefinedIPAddress(endpointConfig) {
			return nil, runconfig.ErrUnsupportedNetworkAndIP
		}
		if endpointConfig != nil && len(endpointConfig.Aliases) > 0 {
			return nil, runconfig.ErrUnsupportedNetworkAndAlias
		}
	} else {
		addShortID := true
		shortID := stringid.TruncateID(container.ID)
		for _, alias := range endpointConfig.Aliases {
			if alias == shortID {
				addShortID = false
				break
			}
		}
		if addShortID {
			endpointConfig.Aliases = append(endpointConfig.Aliases, shortID)
		}
	}

	n, err := daemon.FindNetwork(idOrName)
	if err != nil {
		return nil, err
	}

	if err := validateNetworkingConfig(n, endpointConfig); err != nil {
		return nil, err
	}

	if updateSettings {
		if err := daemon.updateNetworkSettings(container, n); err != nil {
			return nil, err
		}
	}
	return n, nil
}
// DisconnectFromNetwork disconnects container from network n.
func (daemon *Daemon) DisconnectFromNetwork(container *container.Container, n libnetwork.Network, force bool) error {
	if container.HostConfig.NetworkMode.IsHost() && containertypes.NetworkMode(n.Type()).IsHost() {
		return runconfig.ErrConflictHostNetwork
	}
	if !container.Running {
		if container.RemovalInProgress || container.Dead {
			return errRemovalContainer(container.ID)
		}
		if _, ok := container.NetworkSettings.Networks[n.Name()]; ok {
			delete(container.NetworkSettings.Networks, n.Name())
		} else {
			return fmt.Errorf("container %s is not connected to the network %s", container.ID, n.Name())
		}
	} else {
		if err := disconnectFromNetwork(container, n, false); err != nil {
			return err
		}
	}

	if err := container.ToDiskLocking(); err != nil {
		return fmt.Errorf("Error saving container to disk: %v", err)
	}

	attributes := map[string]string{
		"container": container.ID,
	}
	daemon.LogNetworkEventWithAttributes(n, "disconnect", attributes)
	return nil
}
Beispiel #7
0
func (c *Cluster) createContainer(config *cluster.ContainerConfig, name string, withImageAffinity bool, authConfig *types.AuthConfig) (*cluster.Container, error) {
	c.scheduler.Lock()

	// Ensure the name is available
	if !c.checkNameUniqueness(name) {
		c.scheduler.Unlock()
		return nil, fmt.Errorf("Conflict: The name %s is already assigned. You have to delete (or rename) that container to be able to assign %s to a container again.", name, name)
	}

	swarmID := config.SwarmID()
	if swarmID == "" {
		// Associate a Swarm ID to the container we are creating.
		swarmID = c.generateUniqueID()
		config.SetSwarmID(swarmID)
	}

	if network := c.Networks().Get(string(config.HostConfig.NetworkMode)); network != nil && network.Scope == "local" {
		if !config.HaveNodeConstraint() {
			config.AddConstraint("node==~" + network.Engine.Name)
		}
		config.HostConfig.NetworkMode = containertypes.NetworkMode(network.Name)
	}

	if withImageAffinity {
		config.AddAffinity("image==" + config.Image)
	}

	nodes, err := c.scheduler.SelectNodesForContainer(c.listNodes(), config)

	if withImageAffinity {
		config.RemoveAffinity("image==" + config.Image)
	}

	if err != nil {
		c.scheduler.Unlock()
		return nil, err
	}
	n := nodes[0]
	engine, ok := c.engines[n.ID]
	if !ok {
		c.scheduler.Unlock()
		return nil, fmt.Errorf("error creating container")
	}

	c.pendingContainers[swarmID] = &pendingContainer{
		Name:   name,
		Config: config,
		Engine: engine,
	}

	c.scheduler.Unlock()

	container, err := engine.Create(config, name, true, authConfig)

	c.scheduler.Lock()
	delete(c.pendingContainers, swarmID)
	c.scheduler.Unlock()

	return container, err
}
func TestModifyContainerNamespaceOptions(t *testing.T) {
	set := true
	sandboxID := "sandbox"
	sandboxNSMode := fmt.Sprintf("container:%v", sandboxID)
	cases := []struct {
		name     string
		nsOpt    *runtimeapi.NamespaceOption
		expected *dockercontainer.HostConfig
	}{
		{
			name: "NamespaceOption.HostNetwork",
			nsOpt: &runtimeapi.NamespaceOption{
				HostNetwork: &set,
			},
			expected: &dockercontainer.HostConfig{
				NetworkMode: dockercontainer.NetworkMode(sandboxNSMode),
				IpcMode:     dockercontainer.IpcMode(sandboxNSMode),
				UTSMode:     namespaceModeHost,
			},
		},
		{
			name: "NamespaceOption.HostIpc",
			nsOpt: &runtimeapi.NamespaceOption{
				HostIpc: &set,
			},
			expected: &dockercontainer.HostConfig{
				NetworkMode: dockercontainer.NetworkMode(sandboxNSMode),
				IpcMode:     dockercontainer.IpcMode(sandboxNSMode),
			},
		},
		{
			name: "NamespaceOption.HostPid",
			nsOpt: &runtimeapi.NamespaceOption{
				HostPid: &set,
			},
			expected: &dockercontainer.HostConfig{
				NetworkMode: dockercontainer.NetworkMode(sandboxNSMode),
				IpcMode:     dockercontainer.IpcMode(sandboxNSMode),
			},
		},
	}
	for _, tc := range cases {
		dockerCfg := &dockercontainer.HostConfig{}
		modifyContainerNamespaceOptions(tc.nsOpt, sandboxID, dockerCfg)
		assert.Equal(t, tc.expected, dockerCfg, "[Test case %q]", tc.name)
	}
}
// modifyHostNetworkOptionForContainer applies NetworkMode/UTSMode to container's dockercontainer.HostConfig.
func modifyHostNetworkOptionForContainer(hostNetwork bool, sandboxID string, hc *dockercontainer.HostConfig) {
	sandboxNSMode := fmt.Sprintf("container:%v", sandboxID)
	hc.NetworkMode = dockercontainer.NetworkMode(sandboxNSMode)
	hc.IpcMode = dockercontainer.IpcMode(sandboxNSMode)
	hc.UTSMode = ""
	hc.PidMode = ""

	if hostNetwork {
		hc.UTSMode = namespaceModeHost
	}
}
func (daemon *Daemon) updateEndpointNetworkSettings(container *container.Container, n libnetwork.Network, ep libnetwork.Endpoint) error {
	if err := container.BuildEndpointInfo(n, ep); err != nil {
		return err
	}

	if container.HostConfig.NetworkMode == containertypes.NetworkMode("bridge") {
		container.NetworkSettings.Bridge = daemon.configStore.Bridge.Iface
	}

	return nil
}
Beispiel #11
0
func (l *LocalCluster) createRoach(node *testNode, vols *Container, cmd ...string) {
	l.panicOnStop()

	hostConfig := container.HostConfig{
		PublishAllPorts: true,
		NetworkMode:     container.NetworkMode(l.networkID),
	}

	if vols != nil {
		hostConfig.VolumesFrom = append(hostConfig.VolumesFrom, vols.id)
	}

	var hostname string
	if node.index >= 0 {
		hostname = fmt.Sprintf("roach%d", node.index)
	}
	var entrypoint []string
	if *cockroachImage == builderImageFull {
		entrypoint = append(entrypoint, "/"+filepath.Base(*cockroachBinary))
	} else if *cockroachEntry != "" {
		entrypoint = append(entrypoint, *cockroachEntry)
	}
	var err error
	node.Container, err = createContainer(
		l,
		container.Config{
			Hostname: hostname,
			Image:    *cockroachImage,
			ExposedPorts: map[nat.Port]struct{}{
				defaultTCP: {},
			},
			Entrypoint: entrypoint,
			// TODO(pmattis): Figure out why the Go DNS resolver is misbehaving.
			Env: []string{"GODEBUG=netdns=cgo"},
			Cmd: cmd,
			Labels: map[string]string{
				// Allow for `docker ps --filter label=Hostname=roach0` or `--filter label=Roach`.
				"Hostname": hostname,
				"Roach":    "",
			},
		},
		hostConfig,
		&network.NetworkingConfig{
			EndpointsConfig: map[string]*network.EndpointSettings{
				l.networkID: {
					Aliases: []string{hostname},
				},
			},
		},
		node.nodeStr,
	)
	maybePanic(err)
}
Beispiel #12
0
func (c *Container) addNetNs(config *container.HostConfig, service project.Service, containers []project.Container) (*container.HostConfig, error) {
	if len(containers) == 0 {
		return nil, fmt.Errorf("Failed to find container for networks ns %v", c.service.Config().Net)
	}

	id, err := containers[0].ID()
	if err != nil {
		return nil, err
	}

	config.NetworkMode = container.NetworkMode("container:" + id)
	return config, nil
}
Beispiel #13
0
func addNetNs(config *containertypes.HostConfig, service project.Service, containers []project.Container, networkMode string) (*containertypes.HostConfig, error) {
	if len(containers) == 0 {
		return nil, fmt.Errorf("Failed to find container for networks ns %v", networkMode)
	}

	id, err := containers[0].ID()
	if err != nil {
		return nil, err
	}

	config.NetworkMode = containertypes.NetworkMode("container:" + id)
	return config, nil
}
Beispiel #14
0
// createContainer creates a new container using the specified
// options. Per the docker API, the created container is not running
// and must be started explicitly. Note that the passed-in hostConfig
// will be augmented with the necessary settings to use the network
// defined by l.createNetwork().
func createContainer(l *LocalCluster, containerConfig container.Config, hostConfig container.HostConfig, containerName string) (*Container, error) {
	hostConfig.NetworkMode = container.NetworkMode(l.networkID)
	// Disable DNS search under the host machine's domain. This can
	// catch upstream wildcard DNS matching and result in odd behavior.
	hostConfig.DNSSearch = []string{"."}
	resp, err := l.client.ContainerCreate(&containerConfig, &hostConfig, nil, containerName)
	if err != nil {
		return nil, err
	}
	return &Container{
		id:      resp.ID,
		name:    containerName,
		cluster: l,
	}, nil
}
Beispiel #15
0
// asDockerHostConfig converts a RunContainerOptions into a HostConfig
// understood by the docker client
func (rco RunContainerOptions) asDockerHostConfig() dockercontainer.HostConfig {
	hostConfig := dockercontainer.HostConfig{
		CapDrop:         rco.CapDrop,
		PublishAllPorts: rco.TargetImage,
		NetworkMode:     dockercontainer.NetworkMode(rco.NetworkMode),
		Binds:           rco.Binds,
	}
	if rco.CGroupLimits != nil {
		hostConfig.Resources.Memory = rco.CGroupLimits.MemoryLimitBytes
		hostConfig.Resources.MemorySwap = rco.CGroupLimits.MemorySwap
		hostConfig.Resources.CPUShares = rco.CGroupLimits.CPUShares
		hostConfig.Resources.CPUQuota = rco.CGroupLimits.CPUQuota
		hostConfig.Resources.CPUPeriod = rco.CGroupLimits.CPUPeriod
	}
	return hostConfig
}
Beispiel #16
0
func (l *LocalCluster) createRoach(node *testNode, vols *Container, env []string, cmd ...string) {
	l.panicOnStop()

	hostConfig := container.HostConfig{
		PublishAllPorts: true,
		NetworkMode:     container.NetworkMode(l.networkID),
		Privileged:      l.privileged,
	}

	if vols != nil {
		hostConfig.VolumesFrom = append(hostConfig.VolumesFrom, vols.id)
	}

	var hostname string
	if node.index >= 0 {
		hostname = fmt.Sprintf("roach%d", node.index)
	}
	var entrypoint []string
	if *cockroachImage == builderImageFull {
		entrypoint = append(entrypoint, "/"+filepath.Base(*cockroachBinary))
	} else if *cockroachEntry != "" {
		entrypoint = append(entrypoint, *cockroachEntry)
	}
	var err error
	node.Container, err = createContainer(
		l,
		container.Config{
			Hostname: hostname,
			Image:    *cockroachImage,
			ExposedPorts: map[nat.Port]struct{}{
				DefaultTCP:  {},
				defaultHTTP: {},
			},
			Entrypoint: entrypoint,
			Env:        env,
			Cmd:        cmd,
			Labels: map[string]string{
				// Allow for `docker ps --filter label=Hostname=roach0` or `--filter label=Roach`.
				"Hostname": hostname,
				"Roach":    "",
			},
		},
		hostConfig,
		node.nodeStr,
	)
	maybePanic(err)
}
Beispiel #17
0
// hostConfigFromContainerInfo() gets the hostconfig that is passed to the backend during
// docker create and updates any needed info
func hostConfigFromContainerInfo(vc *viccontainer.VicContainer, info *models.ContainerInfo, portlayerName string) *container.HostConfig {
	if vc == nil || vc.HostConfig == nil || info == nil {
		return nil
	}

	// Create a copy of the created container's hostconfig.  This is passed in during
	// container create
	hostConfig := *vc.HostConfig

	// Resources don't really map well to VIC so we leave most of them empty. If we look
	// at the struct in engine-api/types/container/host_config.go, Microsoft added
	// additional attributes to the struct that are applicable to Windows containers.
	// If understanding VIC's host resources are desireable, we should go down this
	// same route.
	//
	// The values we fill out below is an abridged list of the original struct.
	resourceConfig := container.Resources{
	// Applicable to all platforms
	//			CPUShares int64 `json:"CpuShares"` // CPU shares (relative weight vs. other containers)
	//			Memory    int64 // Memory limit (in bytes)

	//			// Applicable to UNIX platforms
	//			DiskQuota            int64           // Disk limit (in bytes)
	}

	hostConfig.VolumeDriver = portlayerName
	hostConfig.Resources = resourceConfig

	if len(info.ScopeConfig) > 0 {
		if info.ScopeConfig[0].DNS != nil {
			hostConfig.DNS = info.ScopeConfig[0].DNS
		}

		hostConfig.NetworkMode = container.NetworkMode(info.ScopeConfig[0].ScopeType)
	}

	// Set this to json-file to force the docker CLI to allow us to use docker logs
	hostConfig.LogConfig.Type = forceLogType

	return &hostConfig
}
Beispiel #18
0
func convertProfile(rawprofile isolate.Profile) (*Profile, error) {
	// Create profile with default values
	// They can be overwritten by decode
	var profile = &Profile{
		NetworkMode: container.NetworkMode("bridge"),
		RuntimePath: defaultRuntimePath,
	}

	config := mapstructure.DecoderConfig{
		WeaklyTypedInput: true,
		Result:           profile,
		TagName:          "json",
	}

	decoder, err := mapstructure.NewDecoder(&config)
	if err != nil {
		return nil, err
	}

	return profile, decoder.Decode(rawprofile)
}
func UtilCreateNetworkMode(c *check.C, networkMode string) {
	config := map[string]interface{}{
		"Image":      "busybox",
		"HostConfig": map[string]interface{}{"NetworkMode": networkMode},
	}

	status, body, err := sockRequest("POST", "/containers/create", config)
	c.Assert(err, checker.IsNil)
	c.Assert(status, checker.Equals, http.StatusCreated)

	var container types.ContainerCreateResponse
	c.Assert(json.Unmarshal(body, &container), checker.IsNil)

	status, body, err = sockRequest("GET", "/containers/"+container.ID+"/json", nil)
	c.Assert(err, checker.IsNil)
	c.Assert(status, checker.Equals, http.StatusOK)

	var containerJSON types.ContainerJSON
	c.Assert(json.Unmarshal(body, &containerJSON), checker.IsNil)
	c.Assert(containerJSON.HostConfig.NetworkMode, checker.Equals, containertypes.NetworkMode(networkMode), check.Commentf("Mismatched NetworkMode"))
}
// DisconnectFromNetwork disconnects container from network n.
func (daemon *Daemon) DisconnectFromNetwork(container *container.Container, networkName string, force bool) error {
	n, err := daemon.FindNetwork(networkName)
	if !container.Running || (err != nil && force) {
		if container.RemovalInProgress || container.Dead {
			return errRemovalContainer(container.ID)
		}
		// In case networkName is resolved we will use n.Name()
		// this will cover the case where network id is passed.
		if n != nil {
			networkName = n.Name()
		}
		if _, ok := container.NetworkSettings.Networks[networkName]; !ok {
			return fmt.Errorf("container %s is not connected to the network %s", container.ID, networkName)
		}
		delete(container.NetworkSettings.Networks, networkName)
	} else if err == nil {
		if container.HostConfig.NetworkMode.IsHost() && containertypes.NetworkMode(n.Type()).IsHost() {
			return runconfig.ErrConflictHostNetwork
		}

		if err := disconnectFromNetwork(container, n, false); err != nil {
			return err
		}
	} else {
		return err
	}

	if err := container.ToDiskLocking(); err != nil {
		return fmt.Errorf("Error saving container to disk: %v", err)
	}

	if n != nil {
		attributes := map[string]string{
			"container": container.ID,
		}
		daemon.LogNetworkEventWithAttributes(n, "disconnect", attributes)
	}
	return nil
}
// DisconnectFromNetwork disconnects container from network n.
func (daemon *Daemon) DisconnectFromNetwork(container *container.Container, n libnetwork.Network) error {
	if !container.Running {
		return derr.ErrorCodeNotRunning.WithArgs(container.ID)
	}

	if container.HostConfig.NetworkMode.IsHost() && containertypes.NetworkMode(n.Type()).IsHost() {
		return runconfig.ErrConflictHostNetwork
	}

	if err := disconnectFromNetwork(container, n); err != nil {
		return err
	}

	if err := container.ToDiskLocking(); err != nil {
		return fmt.Errorf("Error saving container to disk: %v", err)
	}

	attributes := map[string]string{
		"container": container.ID,
	}
	daemon.LogNetworkEventWithAttributes(n, "disconnect", attributes)
	return nil
}
func (daemon *Daemon) updateNetworkConfig(container *container.Container, idOrName string, updateSettings bool) (libnetwork.Network, error) {
	if container.HostConfig.NetworkMode.IsContainer() {
		return nil, runconfig.ErrConflictSharedNetwork
	}

	if containertypes.NetworkMode(idOrName).IsBridge() &&
		daemon.configStore.DisableBridge {
		container.Config.NetworkDisabled = true
		return nil, nil
	}

	n, err := daemon.FindNetwork(idOrName)
	if err != nil {
		return nil, err
	}

	if updateSettings {
		if err := daemon.updateNetworkSettings(container, n); err != nil {
			return nil, err
		}
	}
	return n, nil
}
func (daemon *Daemon) connectToNetwork(container *container.Container, idOrName string, endpointConfig *networktypes.EndpointSettings, updateSettings bool) (err error) {
	if container.HostConfig.NetworkMode.IsContainer() {
		return runconfig.ErrConflictSharedNetwork
	}

	if !containertypes.NetworkMode(idOrName).IsUserDefined() && hasUserDefinedIPAddress(endpointConfig) {
		return runconfig.ErrUnsupportedNetworkAndIP
	}

	if containertypes.NetworkMode(idOrName).IsBridge() &&
		daemon.configStore.DisableBridge {
		container.Config.NetworkDisabled = true
		return nil
	}

	controller := daemon.netController

	n, err := daemon.FindNetwork(idOrName)
	if err != nil {
		return err
	}

	if err := validateNetworkingConfig(n, endpointConfig); err != nil {
		return err
	}

	if updateSettings {
		if err := daemon.updateNetworkSettings(container, n); err != nil {
			return err
		}
	}

	if endpointConfig != nil {
		container.NetworkSettings.Networks[n.Name()] = endpointConfig
	}

	ep, err := container.GetEndpointInNetwork(n)
	if err == nil {
		return fmt.Errorf("Conflict. A container with name %q is already connected to network %s.", strings.TrimPrefix(container.Name, "/"), idOrName)
	}

	if _, ok := err.(libnetwork.ErrNoSuchEndpoint); !ok {
		return err
	}

	createOptions, err := container.BuildCreateEndpointOptions(n)
	if err != nil {
		return err
	}

	endpointName := strings.TrimPrefix(container.Name, "/")
	ep, err = n.CreateEndpoint(endpointName, createOptions...)
	if err != nil {
		return err
	}
	defer func() {
		if err != nil {
			if e := ep.Delete(); e != nil {
				logrus.Warnf("Could not rollback container connection to network %s", idOrName)
			}
		}
	}()

	if err := daemon.updateEndpointNetworkSettings(container, n, ep); err != nil {
		return err
	}

	sb := daemon.getNetworkSandbox(container)
	if sb == nil {
		options, err := daemon.buildSandboxOptions(container, n)
		if err != nil {
			return err
		}
		sb, err = controller.NewSandbox(container.ID, options...)
		if err != nil {
			return err
		}

		container.UpdateSandboxNetworkSettings(sb)
	}

	if err := ep.Join(sb); err != nil {
		return err
	}

	if err := container.UpdateJoinInfo(n, ep); err != nil {
		return derr.ErrorCodeJoinInfo.WithArgs(err)
	}

	daemon.LogNetworkEventWithAttributes(n, "connect", map[string]string{"container": container.ID})
	return nil
}
Beispiel #24
0
// Convert converts a service configuration to an docker API structures (Config and HostConfig)
func Convert(c *config.ServiceConfig, ctx project.Context, clientFactory composeclient.Factory) (*container.Config, *container.HostConfig, error) {
	restartPolicy, err := restartPolicy(c)
	if err != nil {
		return nil, nil, err
	}

	exposedPorts, portBindings, err := ports(c)
	if err != nil {
		return nil, nil, err
	}

	deviceMappings, err := parseDevices(c.Devices)
	if err != nil {
		return nil, nil, err
	}

	var volumesFrom []string
	if c.VolumesFrom != nil {
		volumesFrom, err = getVolumesFrom(c.VolumesFrom, ctx.Project.ServiceConfigs, ctx.ProjectName)
		if err != nil {
			return nil, nil, err
		}
	}

	vols := volumes(c, ctx)

	config := &container.Config{
		Entrypoint:   strslice.StrSlice(utils.CopySlice(c.Entrypoint)),
		Hostname:     c.Hostname,
		Domainname:   c.DomainName,
		User:         c.User,
		Env:          utils.CopySlice(c.Environment),
		Cmd:          strslice.StrSlice(utils.CopySlice(c.Command)),
		Image:        c.Image,
		Labels:       utils.CopyMap(c.Labels),
		ExposedPorts: exposedPorts,
		Tty:          c.Tty,
		OpenStdin:    c.StdinOpen,
		WorkingDir:   c.WorkingDir,
		Volumes:      toMap(Filter(vols, isVolume)),
		MacAddress:   c.MacAddress,
	}

	ulimits := []*units.Ulimit{}
	if c.Ulimits.Elements != nil {
		for _, ulimit := range c.Ulimits.Elements {
			ulimits = append(ulimits, &units.Ulimit{
				Name: ulimit.Name,
				Soft: ulimit.Soft,
				Hard: ulimit.Hard,
			})
		}
	}

	resources := container.Resources{
		CgroupParent: c.CgroupParent,
		Memory:       int64(c.MemLimit),
		MemorySwap:   int64(c.MemSwapLimit),
		CPUShares:    int64(c.CPUShares),
		CPUQuota:     int64(c.CPUQuota),
		CpusetCpus:   c.CPUSet,
		Ulimits:      ulimits,
		Devices:      deviceMappings,
	}

	networkMode := c.NetworkMode
	if c.NetworkMode == "" {
		if c.Networks != nil && len(c.Networks.Networks) > 0 {
			networkMode = c.Networks.Networks[0].RealName
		}
	} else {
		switch {
		case strings.HasPrefix(c.NetworkMode, "service:"):
			serviceName := c.NetworkMode[8:]
			if serviceConfig, ok := ctx.Project.ServiceConfigs.Get(serviceName); ok {
				// FIXME(vdemeester) this is actually not right, should be fixed but not there
				service, err := ctx.ServiceFactory.Create(ctx.Project, serviceName, serviceConfig)
				if err != nil {
					return nil, nil, err
				}
				containers, err := service.Containers(context.Background())
				if err != nil {
					return nil, nil, err
				}
				if len(containers) != 0 {
					container := containers[0]
					containerID, err := container.ID()
					if err != nil {
						return nil, nil, err
					}
					networkMode = "container:" + containerID
				}
				// FIXME(vdemeester) log/warn in case of len(containers) == 0
			}
		case strings.HasPrefix(c.NetworkMode, "container:"):
			containerName := c.NetworkMode[10:]
			client := clientFactory.Create(nil)
			container, err := composecontainer.Get(context.Background(), client, containerName)
			if err != nil {
				return nil, nil, err
			}
			networkMode = "container:" + container.ID
		default:
			// do nothing :)
		}
	}

	hostConfig := &container.HostConfig{
		VolumesFrom: volumesFrom,
		CapAdd:      strslice.StrSlice(utils.CopySlice(c.CapAdd)),
		CapDrop:     strslice.StrSlice(utils.CopySlice(c.CapDrop)),
		ExtraHosts:  utils.CopySlice(c.ExtraHosts),
		Privileged:  c.Privileged,
		Binds:       Filter(vols, isBind),
		DNS:         utils.CopySlice(c.DNS),
		DNSSearch:   utils.CopySlice(c.DNSSearch),
		LogConfig: container.LogConfig{
			Type:   c.Logging.Driver,
			Config: utils.CopyMap(c.Logging.Options),
		},
		NetworkMode:    container.NetworkMode(networkMode),
		ReadonlyRootfs: c.ReadOnly,
		PidMode:        container.PidMode(c.Pid),
		UTSMode:        container.UTSMode(c.Uts),
		IpcMode:        container.IpcMode(c.Ipc),
		PortBindings:   portBindings,
		RestartPolicy:  *restartPolicy,
		ShmSize:        int64(c.ShmSize),
		SecurityOpt:    utils.CopySlice(c.SecurityOpt),
		VolumeDriver:   c.VolumeDriver,
		Resources:      resources,
	}

	if config.Labels == nil {
		config.Labels = map[string]string{}
	}

	return config, hostConfig, nil
}
// DefaultDaemonNetworkMode returns the default network stack the daemon should
// use.
func DefaultDaemonNetworkMode() container.NetworkMode {
	return container.NetworkMode("nat")
}
// IsPreDefinedNetwork indicates if a network is predefined by the daemon
func IsPreDefinedNetwork(network string) bool {
	return !container.NetworkMode(network).IsUserDefined()
}
Beispiel #27
0
func (daemon *Daemon) initNetworkController(config *Config) (libnetwork.NetworkController, error) {
	netOptions, err := daemon.networkOptions(config)
	if err != nil {
		return nil, err
	}
	controller, err := libnetwork.New(netOptions...)
	if err != nil {
		return nil, fmt.Errorf("error obtaining controller instance: %v", err)
	}

	hnsresponse, err := hcsshim.HNSListNetworkRequest("GET", "", "")
	if err != nil {
		return nil, err
	}

	// Remove networks not present in HNS
	for _, v := range controller.Networks() {
		options := v.Info().DriverOptions()
		hnsid := options[winlibnetwork.HNSID]
		found := false

		for _, v := range hnsresponse {
			if v.Id == hnsid {
				found = true
				break
			}
		}

		if !found {
			err = v.Delete()
			if err != nil {
				return nil, err
			}
		}
	}

	_, err = controller.NewNetwork("null", "none", libnetwork.NetworkOptionPersist(false))
	if err != nil {
		return nil, err
	}

	// discover and add HNS networks to windows
	// network that exist are removed and added again
	for _, v := range hnsresponse {
		var n libnetwork.Network
		s := func(current libnetwork.Network) bool {
			options := current.Info().DriverOptions()
			if options[winlibnetwork.HNSID] == v.Id {
				n = current
				return true
			}
			return false
		}

		controller.WalkNetworks(s)
		if n != nil {
			v.Name = n.Name()
			n.Delete()
		}

		netOption := map[string]string{
			winlibnetwork.NetworkName: v.Name,
			winlibnetwork.HNSID:       v.Id,
		}

		v4Conf := []*libnetwork.IpamConf{}
		for _, subnet := range v.Subnets {
			ipamV4Conf := libnetwork.IpamConf{}
			ipamV4Conf.PreferredPool = subnet.AddressPrefix
			ipamV4Conf.Gateway = subnet.GatewayAddress
			v4Conf = append(v4Conf, &ipamV4Conf)
		}

		name := v.Name
		// There is only one nat network supported in windows.
		// If it exists with a different name add it as the default name
		if runconfig.DefaultDaemonNetworkMode() == containertypes.NetworkMode(strings.ToLower(v.Type)) {
			name = runconfig.DefaultDaemonNetworkMode().NetworkName()
		}

		v6Conf := []*libnetwork.IpamConf{}
		_, err := controller.NewNetwork(strings.ToLower(v.Type), name,
			libnetwork.NetworkOptionGeneric(options.Generic{
				netlabel.GenericData: netOption,
			}),
			libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
		)

		if err != nil {
			logrus.Errorf("Error occurred when creating network %v", err)
		}
	}

	if !config.DisableBridge {
		// Initialize default driver "bridge"
		if err := initBridgeDriver(controller, config); err != nil {
			return nil, err
		}
	}

	return controller, nil
}
Beispiel #28
0
// Parse parses the specified args for the specified command and generates a Config,
// a HostConfig and returns them with the specified command.
// If the specified args are not valid, it will return an error.
func Parse(cmd *flag.FlagSet, args []string) (*container.Config, *container.HostConfig, *networktypes.NetworkingConfig, *flag.FlagSet, error) {
	var (
		// FIXME: use utils.ListOpts for attach and volumes?
		flAttach            = opts.NewListOpts(ValidateAttach)
		flVolumes           = opts.NewListOpts(nil)
		flTmpfs             = opts.NewListOpts(nil)
		flBlkioWeightDevice = NewWeightdeviceOpt(ValidateWeightDevice)
		flDeviceReadBps     = NewThrottledeviceOpt(ValidateThrottleBpsDevice)
		flDeviceWriteBps    = NewThrottledeviceOpt(ValidateThrottleBpsDevice)
		flLinks             = opts.NewListOpts(ValidateLink)
		flAliases           = opts.NewListOpts(nil)
		flDeviceReadIOps    = NewThrottledeviceOpt(ValidateThrottleIOpsDevice)
		flDeviceWriteIOps   = NewThrottledeviceOpt(ValidateThrottleIOpsDevice)
		flEnv               = opts.NewListOpts(ValidateEnv)
		flLabels            = opts.NewListOpts(ValidateEnv)
		flDevices           = opts.NewListOpts(ValidateDevice)

		flUlimits = NewUlimitOpt(nil)

		flPublish           = opts.NewListOpts(nil)
		flExpose            = opts.NewListOpts(nil)
		flDNS               = opts.NewListOpts(opts.ValidateIPAddress)
		flDNSSearch         = opts.NewListOpts(opts.ValidateDNSSearch)
		flDNSOptions        = opts.NewListOpts(nil)
		flExtraHosts        = opts.NewListOpts(ValidateExtraHost)
		flVolumesFrom       = opts.NewListOpts(nil)
		flEnvFile           = opts.NewListOpts(nil)
		flCapAdd            = opts.NewListOpts(nil)
		flCapDrop           = opts.NewListOpts(nil)
		flGroupAdd          = opts.NewListOpts(nil)
		flSecurityOpt       = opts.NewListOpts(nil)
		flLabelsFile        = opts.NewListOpts(nil)
		flLoggingOpts       = opts.NewListOpts(nil)
		flPrivileged        = cmd.Bool([]string{"-privileged"}, false, "Give extended privileges to this container")
		flPidMode           = cmd.String([]string{"-pid"}, "", "PID namespace to use")
		flUTSMode           = cmd.String([]string{"-uts"}, "", "UTS namespace to use")
		flUsernsMode        = cmd.String([]string{"-userns"}, "", "User namespace to use")
		flPublishAll        = cmd.Bool([]string{"P", "-publish-all"}, false, "Publish all exposed ports to random ports")
		flStdin             = cmd.Bool([]string{"i", "-interactive"}, false, "Keep STDIN open even if not attached")
		flTty               = cmd.Bool([]string{"t", "-tty"}, false, "Allocate a pseudo-TTY")
		flOomKillDisable    = cmd.Bool([]string{"-oom-kill-disable"}, false, "Disable OOM Killer")
		flOomScoreAdj       = cmd.Int([]string{"-oom-score-adj"}, 0, "Tune host's OOM preferences (-1000 to 1000)")
		flContainerIDFile   = cmd.String([]string{"-cidfile"}, "", "Write the container ID to the file")
		flEntrypoint        = cmd.String([]string{"-entrypoint"}, "", "Overwrite the default ENTRYPOINT of the image")
		flHostname          = cmd.String([]string{"h", "-hostname"}, "", "Container host name")
		flMemoryString      = cmd.String([]string{"m", "-memory"}, "", "Memory limit")
		flMemoryReservation = cmd.String([]string{"-memory-reservation"}, "", "Memory soft limit")
		flMemorySwap        = cmd.String([]string{"-memory-swap"}, "", "Swap limit equal to memory plus swap: '-1' to enable unlimited swap")
		flKernelMemory      = cmd.String([]string{"-kernel-memory"}, "", "Kernel memory limit")
		flUser              = cmd.String([]string{"u", "-user"}, "", "Username or UID (format: <name|uid>[:<group|gid>])")
		flWorkingDir        = cmd.String([]string{"w", "-workdir"}, "", "Working directory inside the container")
		flCPUShares         = cmd.Int64([]string{"#c", "-cpu-shares"}, 0, "CPU shares (relative weight)")
		flCPUPeriod         = cmd.Int64([]string{"-cpu-period"}, 0, "Limit CPU CFS (Completely Fair Scheduler) period")
		flCPUQuota          = cmd.Int64([]string{"-cpu-quota"}, 0, "Limit CPU CFS (Completely Fair Scheduler) quota")
		flCpusetCpus        = cmd.String([]string{"-cpuset-cpus"}, "", "CPUs in which to allow execution (0-3, 0,1)")
		flCpusetMems        = cmd.String([]string{"-cpuset-mems"}, "", "MEMs in which to allow execution (0-3, 0,1)")
		flBlkioWeight       = cmd.Uint16([]string{"-blkio-weight"}, 0, "Block IO (relative weight), between 10 and 1000")
		flSwappiness        = cmd.Int64([]string{"-memory-swappiness"}, -1, "Tune container memory swappiness (0 to 100)")
		flNetMode           = cmd.String([]string{"-net"}, "default", "Connect a container to a network")
		flMacAddress        = cmd.String([]string{"-mac-address"}, "", "Container MAC address (e.g. 92:d0:c6:0a:29:33)")
		flIPv4Address       = cmd.String([]string{"-ip"}, "", "Container IPv4 address (e.g. 172.30.100.104)")
		flIPv6Address       = cmd.String([]string{"-ip6"}, "", "Container IPv6 address (e.g. 2001:db8::33)")
		flIpcMode           = cmd.String([]string{"-ipc"}, "", "IPC namespace to use")
		flPidsLimit         = cmd.Int64([]string{"-pids-limit"}, 0, "Tune container pids limit (set -1 for unlimited)")
		flRestartPolicy     = cmd.String([]string{"-restart"}, "no", "Restart policy to apply when a container exits")
		flReadonlyRootfs    = cmd.Bool([]string{"-read-only"}, false, "Mount the container's root filesystem as read only")
		flLoggingDriver     = cmd.String([]string{"-log-driver"}, "", "Logging driver for container")
		flCgroupParent      = cmd.String([]string{"-cgroup-parent"}, "", "Optional parent cgroup for the container")
		flVolumeDriver      = cmd.String([]string{"-volume-driver"}, "", "Optional volume driver for the container")
		flStopSignal        = cmd.String([]string{"-stop-signal"}, signal.DefaultStopSignal, fmt.Sprintf("Signal to stop a container, %v by default", signal.DefaultStopSignal))
		flIsolation         = cmd.String([]string{"-isolation"}, "", "Container isolation technology")
		flShmSize           = cmd.String([]string{"-shm-size"}, "", "Size of /dev/shm, default value is 64MB")
	)

	cmd.Var(&flAttach, []string{"a", "-attach"}, "Attach to STDIN, STDOUT or STDERR")
	cmd.Var(&flBlkioWeightDevice, []string{"-blkio-weight-device"}, "Block IO weight (relative device weight)")
	cmd.Var(&flDeviceReadBps, []string{"-device-read-bps"}, "Limit read rate (bytes per second) from a device")
	cmd.Var(&flDeviceWriteBps, []string{"-device-write-bps"}, "Limit write rate (bytes per second) to a device")
	cmd.Var(&flDeviceReadIOps, []string{"-device-read-iops"}, "Limit read rate (IO per second) from a device")
	cmd.Var(&flDeviceWriteIOps, []string{"-device-write-iops"}, "Limit write rate (IO per second) to a device")
	cmd.Var(&flVolumes, []string{"v", "-volume"}, "Bind mount a volume")
	cmd.Var(&flTmpfs, []string{"-tmpfs"}, "Mount a tmpfs directory")
	cmd.Var(&flLinks, []string{"-link"}, "Add link to another container")
	cmd.Var(&flAliases, []string{"-net-alias"}, "Add network-scoped alias for the container")
	cmd.Var(&flDevices, []string{"-device"}, "Add a host device to the container")
	cmd.Var(&flLabels, []string{"l", "-label"}, "Set meta data on a container")
	cmd.Var(&flLabelsFile, []string{"-label-file"}, "Read in a line delimited file of labels")
	cmd.Var(&flEnv, []string{"e", "-env"}, "Set environment variables")
	cmd.Var(&flEnvFile, []string{"-env-file"}, "Read in a file of environment variables")
	cmd.Var(&flPublish, []string{"p", "-publish"}, "Publish a container's port(s) to the host")
	cmd.Var(&flExpose, []string{"-expose"}, "Expose a port or a range of ports")
	cmd.Var(&flDNS, []string{"-dns"}, "Set custom DNS servers")
	cmd.Var(&flDNSSearch, []string{"-dns-search"}, "Set custom DNS search domains")
	cmd.Var(&flDNSOptions, []string{"-dns-opt"}, "Set DNS options")
	cmd.Var(&flExtraHosts, []string{"-add-host"}, "Add a custom host-to-IP mapping (host:ip)")
	cmd.Var(&flVolumesFrom, []string{"-volumes-from"}, "Mount volumes from the specified container(s)")
	cmd.Var(&flCapAdd, []string{"-cap-add"}, "Add Linux capabilities")
	cmd.Var(&flCapDrop, []string{"-cap-drop"}, "Drop Linux capabilities")
	cmd.Var(&flGroupAdd, []string{"-group-add"}, "Add additional groups to join")
	cmd.Var(&flSecurityOpt, []string{"-security-opt"}, "Security Options")
	cmd.Var(flUlimits, []string{"-ulimit"}, "Ulimit options")
	cmd.Var(&flLoggingOpts, []string{"-log-opt"}, "Log driver options")

	cmd.Require(flag.Min, 1)

	if err := cmd.ParseFlags(args, true); err != nil {
		return nil, nil, nil, cmd, err
	}

	var (
		attachStdin  = flAttach.Get("stdin")
		attachStdout = flAttach.Get("stdout")
		attachStderr = flAttach.Get("stderr")
	)

	// Validate the input mac address
	if *flMacAddress != "" {
		if _, err := ValidateMACAddress(*flMacAddress); err != nil {
			return nil, nil, nil, cmd, fmt.Errorf("%s is not a valid mac address", *flMacAddress)
		}
	}
	if *flStdin {
		attachStdin = true
	}
	// If -a is not set attach to the output stdio
	if flAttach.Len() == 0 {
		attachStdout = true
		attachStderr = true
	}

	var err error

	var flMemory int64
	if *flMemoryString != "" {
		flMemory, err = units.RAMInBytes(*flMemoryString)
		if err != nil {
			return nil, nil, nil, cmd, err
		}
	}

	var MemoryReservation int64
	if *flMemoryReservation != "" {
		MemoryReservation, err = units.RAMInBytes(*flMemoryReservation)
		if err != nil {
			return nil, nil, nil, cmd, err
		}
	}

	var memorySwap int64
	if *flMemorySwap != "" {
		if *flMemorySwap == "-1" {
			memorySwap = -1
		} else {
			memorySwap, err = units.RAMInBytes(*flMemorySwap)
			if err != nil {
				return nil, nil, nil, cmd, err
			}
		}
	}

	var KernelMemory int64
	if *flKernelMemory != "" {
		KernelMemory, err = units.RAMInBytes(*flKernelMemory)
		if err != nil {
			return nil, nil, nil, cmd, err
		}
	}

	swappiness := *flSwappiness
	if swappiness != -1 && (swappiness < 0 || swappiness > 100) {
		return nil, nil, nil, cmd, fmt.Errorf("invalid value: %d. Valid memory swappiness range is 0-100", swappiness)
	}

	var shmSize int64
	if *flShmSize != "" {
		shmSize, err = units.RAMInBytes(*flShmSize)
		if err != nil {
			return nil, nil, nil, cmd, err
		}
	}

	var binds []string
	// add any bind targets to the list of container volumes
	for bind := range flVolumes.GetMap() {
		if arr := volumeSplitN(bind, 2); len(arr) > 1 {
			// after creating the bind mount we want to delete it from the flVolumes values because
			// we do not want bind mounts being committed to image configs
			binds = append(binds, bind)
			flVolumes.Delete(bind)
		}
	}

	// Can't evaluate options passed into --tmpfs until we actually mount
	tmpfs := make(map[string]string)
	for _, t := range flTmpfs.GetAll() {
		if arr := strings.SplitN(t, ":", 2); len(arr) > 1 {
			if _, _, err := mount.ParseTmpfsOptions(arr[1]); err != nil {
				return nil, nil, nil, cmd, err
			}
			tmpfs[arr[0]] = arr[1]
		} else {
			tmpfs[arr[0]] = ""
		}
	}

	var (
		parsedArgs = cmd.Args()
		runCmd     strslice.StrSlice
		entrypoint strslice.StrSlice
		image      = cmd.Arg(0)
	)
	if len(parsedArgs) > 1 {
		runCmd = strslice.StrSlice(parsedArgs[1:])
	}
	if *flEntrypoint != "" {
		entrypoint = strslice.StrSlice{*flEntrypoint}
	}
	// Validate if the given hostname is RFC 1123 (https://tools.ietf.org/html/rfc1123) compliant.
	hostname := *flHostname
	if hostname != "" {
		matched, _ := regexp.MatchString("^(([[:alnum:]]|[[:alnum:]][[:alnum:]\\-]*[[:alnum:]])\\.)*([[:alnum:]]|[[:alnum:]][[:alnum:]\\-]*[[:alnum:]])$", hostname)
		if !matched {
			return nil, nil, nil, cmd, fmt.Errorf("invalid hostname format for --hostname: %s", hostname)
		}
	}

	ports, portBindings, err := nat.ParsePortSpecs(flPublish.GetAll())
	if err != nil {
		return nil, nil, nil, cmd, err
	}

	// Merge in exposed ports to the map of published ports
	for _, e := range flExpose.GetAll() {
		if strings.Contains(e, ":") {
			return nil, nil, nil, cmd, fmt.Errorf("invalid port format for --expose: %s", e)
		}
		//support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
		proto, port := nat.SplitProtoPort(e)
		//parse the start and end port and create a sequence of ports to expose
		//if expose a port, the start and end port are the same
		start, end, err := nat.ParsePortRange(port)
		if err != nil {
			return nil, nil, nil, cmd, fmt.Errorf("invalid range format for --expose: %s, error: %s", e, err)
		}
		for i := start; i <= end; i++ {
			p, err := nat.NewPort(proto, strconv.FormatUint(i, 10))
			if err != nil {
				return nil, nil, nil, cmd, err
			}
			if _, exists := ports[p]; !exists {
				ports[p] = struct{}{}
			}
		}
	}

	// parse device mappings
	deviceMappings := []container.DeviceMapping{}
	for _, device := range flDevices.GetAll() {
		deviceMapping, err := ParseDevice(device)
		if err != nil {
			return nil, nil, nil, cmd, err
		}
		deviceMappings = append(deviceMappings, deviceMapping)
	}

	// collect all the environment variables for the container
	envVariables, err := readKVStrings(flEnvFile.GetAll(), flEnv.GetAll())
	if err != nil {
		return nil, nil, nil, cmd, err
	}

	// collect all the labels for the container
	labels, err := readKVStrings(flLabelsFile.GetAll(), flLabels.GetAll())
	if err != nil {
		return nil, nil, nil, cmd, err
	}

	ipcMode := container.IpcMode(*flIpcMode)
	if !ipcMode.Valid() {
		return nil, nil, nil, cmd, fmt.Errorf("--ipc: invalid IPC mode")
	}

	pidMode := container.PidMode(*flPidMode)
	if !pidMode.Valid() {
		return nil, nil, nil, cmd, fmt.Errorf("--pid: invalid PID mode")
	}

	utsMode := container.UTSMode(*flUTSMode)
	if !utsMode.Valid() {
		return nil, nil, nil, cmd, fmt.Errorf("--uts: invalid UTS mode")
	}

	usernsMode := container.UsernsMode(*flUsernsMode)
	if !usernsMode.Valid() {
		return nil, nil, nil, cmd, fmt.Errorf("--userns: invalid USER mode")
	}

	restartPolicy, err := ParseRestartPolicy(*flRestartPolicy)
	if err != nil {
		return nil, nil, nil, cmd, err
	}

	loggingOpts, err := parseLoggingOpts(*flLoggingDriver, flLoggingOpts.GetAll())
	if err != nil {
		return nil, nil, nil, cmd, err
	}

	securityOpts, err := parseSecurityOpts(flSecurityOpt.GetAll())
	if err != nil {
		return nil, nil, nil, cmd, err
	}

	resources := container.Resources{
		CgroupParent:         *flCgroupParent,
		Memory:               flMemory,
		MemoryReservation:    MemoryReservation,
		MemorySwap:           memorySwap,
		MemorySwappiness:     flSwappiness,
		KernelMemory:         KernelMemory,
		OomKillDisable:       flOomKillDisable,
		CPUShares:            *flCPUShares,
		CPUPeriod:            *flCPUPeriod,
		CpusetCpus:           *flCpusetCpus,
		CpusetMems:           *flCpusetMems,
		CPUQuota:             *flCPUQuota,
		PidsLimit:            *flPidsLimit,
		BlkioWeight:          *flBlkioWeight,
		BlkioWeightDevice:    flBlkioWeightDevice.GetList(),
		BlkioDeviceReadBps:   flDeviceReadBps.GetList(),
		BlkioDeviceWriteBps:  flDeviceWriteBps.GetList(),
		BlkioDeviceReadIOps:  flDeviceReadIOps.GetList(),
		BlkioDeviceWriteIOps: flDeviceWriteIOps.GetList(),
		Ulimits:              flUlimits.GetList(),
		Devices:              deviceMappings,
	}

	config := &container.Config{
		Hostname:     *flHostname,
		ExposedPorts: ports,
		User:         *flUser,
		Tty:          *flTty,
		// TODO: deprecated, it comes from -n, --networking
		// it's still needed internally to set the network to disabled
		// if e.g. bridge is none in daemon opts, and in inspect
		NetworkDisabled: false,
		OpenStdin:       *flStdin,
		AttachStdin:     attachStdin,
		AttachStdout:    attachStdout,
		AttachStderr:    attachStderr,
		Env:             envVariables,
		Cmd:             runCmd,
		Image:           image,
		Volumes:         flVolumes.GetMap(),
		MacAddress:      *flMacAddress,
		Entrypoint:      entrypoint,
		WorkingDir:      *flWorkingDir,
		Labels:          ConvertKVStringsToMap(labels),
	}
	if cmd.IsSet("-stop-signal") {
		config.StopSignal = *flStopSignal
	}

	hostConfig := &container.HostConfig{
		Binds:           binds,
		ContainerIDFile: *flContainerIDFile,
		OomScoreAdj:     *flOomScoreAdj,
		Privileged:      *flPrivileged,
		PortBindings:    portBindings,
		Links:           flLinks.GetAll(),
		PublishAllPorts: *flPublishAll,
		// Make sure the dns fields are never nil.
		// New containers don't ever have those fields nil,
		// but pre created containers can still have those nil values.
		// See https://github.com/docker/docker/pull/17779
		// for a more detailed explanation on why we don't want that.
		DNS:            flDNS.GetAllOrEmpty(),
		DNSSearch:      flDNSSearch.GetAllOrEmpty(),
		DNSOptions:     flDNSOptions.GetAllOrEmpty(),
		ExtraHosts:     flExtraHosts.GetAll(),
		VolumesFrom:    flVolumesFrom.GetAll(),
		NetworkMode:    container.NetworkMode(*flNetMode),
		IpcMode:        ipcMode,
		PidMode:        pidMode,
		UTSMode:        utsMode,
		UsernsMode:     usernsMode,
		CapAdd:         strslice.StrSlice(flCapAdd.GetAll()),
		CapDrop:        strslice.StrSlice(flCapDrop.GetAll()),
		GroupAdd:       flGroupAdd.GetAll(),
		RestartPolicy:  restartPolicy,
		SecurityOpt:    securityOpts,
		ReadonlyRootfs: *flReadonlyRootfs,
		LogConfig:      container.LogConfig{Type: *flLoggingDriver, Config: loggingOpts},
		VolumeDriver:   *flVolumeDriver,
		Isolation:      container.Isolation(*flIsolation),
		ShmSize:        shmSize,
		Resources:      resources,
		Tmpfs:          tmpfs,
	}

	// When allocating stdin in attached mode, close stdin at client disconnect
	if config.OpenStdin && config.AttachStdin {
		config.StdinOnce = true
	}

	networkingConfig := &networktypes.NetworkingConfig{
		EndpointsConfig: make(map[string]*networktypes.EndpointSettings),
	}

	if *flIPv4Address != "" || *flIPv6Address != "" {
		networkingConfig.EndpointsConfig[string(hostConfig.NetworkMode)] = &networktypes.EndpointSettings{
			IPAMConfig: &networktypes.EndpointIPAMConfig{
				IPv4Address: *flIPv4Address,
				IPv6Address: *flIPv6Address,
			},
		}
	}

	if hostConfig.NetworkMode.IsUserDefined() && len(hostConfig.Links) > 0 {
		epConfig := networkingConfig.EndpointsConfig[string(hostConfig.NetworkMode)]
		if epConfig == nil {
			epConfig = &networktypes.EndpointSettings{}
		}
		epConfig.Links = make([]string, len(hostConfig.Links))
		copy(epConfig.Links, hostConfig.Links)
		networkingConfig.EndpointsConfig[string(hostConfig.NetworkMode)] = epConfig
	}

	if flAliases.Len() > 0 {
		epConfig := networkingConfig.EndpointsConfig[string(hostConfig.NetworkMode)]
		if epConfig == nil {
			epConfig = &networktypes.EndpointSettings{}
		}
		epConfig.Aliases = make([]string, flAliases.Len())
		copy(epConfig.Aliases, flAliases.GetAll())
		networkingConfig.EndpointsConfig[string(hostConfig.NetworkMode)] = epConfig
	}

	return config, hostConfig, networkingConfig, cmd, nil
}
Beispiel #29
0
// CreateContainer creates a new container in the given PodSandbox
// Note: docker doesn't use LogPath yet.
// TODO: check if the default values returned by the runtime API are ok.
func (ds *dockerService) CreateContainer(podSandboxID string, config *runtimeApi.ContainerConfig, sandboxConfig *runtimeApi.PodSandboxConfig) (string, error) {
	if config == nil {
		return "", fmt.Errorf("container config is nil")
	}
	if sandboxConfig == nil {
		return "", fmt.Errorf("sandbox config is nil for container %q", config.Metadata.GetName())
	}

	labels := makeLabels(config.GetLabels(), config.GetAnnotations())
	// Apply a the container type label.
	labels[containerTypeLabelKey] = containerTypeLabelContainer
	// Write the sandbox ID in the labels.
	labels[sandboxIDLabelKey] = podSandboxID

	image := ""
	if iSpec := config.GetImage(); iSpec != nil {
		image = iSpec.GetImage()
	}
	createConfig := dockertypes.ContainerCreateConfig{
		Name: makeContainerName(sandboxConfig, config),
		Config: &dockercontainer.Config{
			// TODO: set User.
			Entrypoint: dockerstrslice.StrSlice(config.GetCommand()),
			Cmd:        dockerstrslice.StrSlice(config.GetArgs()),
			Env:        generateEnvList(config.GetEnvs()),
			Image:      image,
			WorkingDir: config.GetWorkingDir(),
			Labels:     labels,
			// Interactive containers:
			OpenStdin: config.GetStdin(),
			StdinOnce: config.GetStdinOnce(),
			Tty:       config.GetTty(),
		},
	}

	// Fill the HostConfig.
	hc := &dockercontainer.HostConfig{
		Binds:          generateMountBindings(config.GetMounts()),
		ReadonlyRootfs: config.GetReadonlyRootfs(),
		Privileged:     config.GetPrivileged(),
	}

	// Apply options derived from the sandbox config.
	if lc := sandboxConfig.GetLinux(); lc != nil {
		// Apply Cgroup options.
		// TODO: Check if this works with per-pod cgroups.
		hc.CgroupParent = lc.GetCgroupParent()

		// Apply namespace options.
		sandboxNSMode := fmt.Sprintf("container:%v", podSandboxID)
		hc.NetworkMode = dockercontainer.NetworkMode(sandboxNSMode)
		hc.IpcMode = dockercontainer.IpcMode(sandboxNSMode)
		hc.UTSMode = ""
		hc.PidMode = ""

		nsOpts := lc.GetNamespaceOptions()
		if nsOpts != nil {
			if nsOpts.GetHostNetwork() {
				hc.UTSMode = namespaceModeHost
			}
			if nsOpts.GetHostPid() {
				hc.PidMode = namespaceModeHost
			}
		}
	}

	// Apply Linux-specific options if applicable.
	if lc := config.GetLinux(); lc != nil {
		// Apply resource options.
		// TODO: Check if the units are correct.
		// TODO: Can we assume the defaults are sane?
		rOpts := lc.GetResources()
		if rOpts != nil {
			hc.Resources = dockercontainer.Resources{
				Memory:     rOpts.GetMemoryLimitInBytes(),
				MemorySwap: -1, // Always disable memory swap.
				CPUShares:  rOpts.GetCpuShares(),
				CPUQuota:   rOpts.GetCpuQuota(),
				CPUPeriod:  rOpts.GetCpuPeriod(),
				// TODO: Need to set devices.
			}
			hc.OomScoreAdj = int(rOpts.GetOomScoreAdj())
		}
		// Note: ShmSize is handled in kube_docker_client.go
	}

	var err error
	hc.SecurityOpt, err = getContainerSecurityOpts(config.Metadata.GetName(), sandboxConfig, ds.seccompProfileRoot)
	if err != nil {
		return "", fmt.Errorf("failed to generate container security options for container %q: %v", config.Metadata.GetName(), err)
	}
	// TODO: Add or drop capabilities.

	createConfig.HostConfig = hc
	createResp, err := ds.client.CreateContainer(createConfig)
	if createResp != nil {
		return createResp.ID, err
	}
	return "", err
}
Beispiel #30
0
// BuildCreateEndpointOptions builds endpoint options from a given network.
func (container *Container) BuildCreateEndpointOptions(n libnetwork.Network, epConfig *network.EndpointSettings, sb libnetwork.Sandbox) ([]libnetwork.EndpointOption, error) {
	var (
		portSpecs     = make(nat.PortSet)
		bindings      = make(nat.PortMap)
		pbList        []types.PortBinding
		exposeList    []types.TransportPort
		createOptions []libnetwork.EndpointOption
	)

	if n.Name() == "bridge" || container.NetworkSettings.IsAnonymousEndpoint {
		createOptions = append(createOptions, libnetwork.CreateOptionAnonymous())
	}

	if epConfig != nil {
		ipam := epConfig.IPAMConfig
		if ipam != nil && (ipam.IPv4Address != "" || ipam.IPv6Address != "") {
			createOptions = append(createOptions,
				libnetwork.CreateOptionIpam(net.ParseIP(ipam.IPv4Address), net.ParseIP(ipam.IPv6Address), nil))
		}

		for _, alias := range epConfig.Aliases {
			createOptions = append(createOptions, libnetwork.CreateOptionMyAlias(alias))
		}
	}

	if !containertypes.NetworkMode(n.Name()).IsUserDefined() {
		createOptions = append(createOptions, libnetwork.CreateOptionDisableResolution())
	}

	// configs that are applicable only for the endpoint in the network
	// to which container was connected to on docker run.
	// Ideally all these network-specific endpoint configurations must be moved under
	// container.NetworkSettings.Networks[n.Name()]
	if n.Name() == container.HostConfig.NetworkMode.NetworkName() ||
		(n.Name() == "bridge" && container.HostConfig.NetworkMode.IsDefault()) {
		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))
		}
	}

	// Port-mapping rules belong to the container & applicable only to non-internal networks
	portmaps := getSandboxPortMapInfo(sb)
	if n.Info().Internal() || len(portmaps) > 0 {
		return createOptions, nil
	}

	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,
				})
			}
		}
	}

	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()
			newP, err := nat.NewPort(nat.SplitProtoPort(binding[i].HostPort))
			var portStart, portEnd int
			if err == nil {
				portStart, portEnd, err = newP.Range()
			}
			if err != nil {
				return nil, derr.ErrorCodeHostPort.WithArgs(binding[i].HostPort, err)
			}
			pbCopy.HostPort = uint16(portStart)
			pbCopy.HostPortEnd = uint16(portEnd)
			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))

	return createOptions, nil
}