Example #1
0
func main() {
	var (
		justVersion      bool
		address          string
		nameserver       string
		meshAddress      string
		logLevel         string
		noMulticastRoute bool
	)

	flag.BoolVar(&justVersion, "version", false, "print version and exit")
	flag.StringVar(&logLevel, "log-level", "info", "logging level (debug, info, warning, error)")
	flag.StringVar(&address, "socket", "/run/docker/plugins/weave.sock", "socket on which to listen")
	flag.StringVar(&nameserver, "nameserver", "", "nameserver to provide to containers")
	flag.StringVar(&meshAddress, "meshsocket", "/run/docker/plugins/weavemesh.sock", "socket on which to listen in mesh mode")
	flag.BoolVar(&noMulticastRoute, "no-multicast-route", false, "do not add a multicast route to network endpoints")

	flag.Parse()

	if justVersion {
		fmt.Printf("weave plugin %s\n", version)
		os.Exit(0)
	}

	SetLogLevel(logLevel)

	// API 1.21 is the first version that supports docker network commands
	dockerClient, err := docker.NewVersionedClientFromEnv("1.21")
	if err != nil {
		Log.Fatalf("unable to connect to docker: %s", err)
	}

	Log.Println("Weave plugin", version, "Command line options:", os.Args[1:])
	Log.Info(dockerClient.Info())

	var globalListener, meshListener net.Listener
	endChan := make(chan error, 1)
	if address != "" {
		globalListener, err := listenAndServe(dockerClient, address, nameserver, noMulticastRoute, endChan, "global", false)
		if err != nil {
			Log.Fatalf("unable to create driver: %s", err)
		}
		defer globalListener.Close()
	}
	if meshAddress != "" {
		meshListener, err := listenAndServe(dockerClient, meshAddress, nameserver, noMulticastRoute, endChan, "local", true)
		if err != nil {
			Log.Fatalf("unable to create driver: %s", err)
		}
		defer meshListener.Close()
	}

	err = <-endChan
	if err != nil {
		Log.Errorf("Error from listener: %s", err)
		globalListener.Close()
		meshListener.Close()
		os.Exit(1)
	}
}
Example #2
0
File: main.go Project: n054/weave
func main() {
	var (
		justVersion      bool
		cniNet           bool
		cniIpam          bool
		address          string
		meshAddress      string
		logLevel         string
		noMulticastRoute bool
	)

	flag.BoolVar(&justVersion, "version", false, "print version and exit")
	flag.BoolVar(&cniNet, "cni-net", false, "act as a CNI network plugin")
	flag.BoolVar(&cniIpam, "cni-ipam", false, "act as a CNI IPAM plugin")
	flag.StringVar(&logLevel, "log-level", "info", "logging level (debug, info, warning, error)")
	flag.StringVar(&address, "socket", "/run/docker/plugins/weave.sock", "socket on which to listen")
	flag.StringVar(&meshAddress, "meshsocket", "/run/docker/plugins/weavemesh.sock", "socket on which to listen in mesh mode")
	flag.BoolVar(&noMulticastRoute, "no-multicast-route", false, "deprecated (this is now the default)")

	flag.Parse()

	if justVersion {
		fmt.Printf("weave plugin %s\n", version)
		os.Exit(0)
	}

	common.SetLogLevel(logLevel)

	weave := weaveapi.NewClient(os.Getenv("WEAVE_HTTP_ADDR"), Log)

	switch {
	case cniIpam || strings.HasSuffix(os.Args[0], "weave-ipam"):
		i := ipamplugin.NewIpam(weave)
		cni.PluginMain(i.CmdAdd, i.CmdDel)
		os.Exit(0)
	case cniNet || strings.HasSuffix(os.Args[0], "weave-net"):
		n := netplugin.NewCNIPlugin(weave)
		cni.PluginMain(n.CmdAdd, n.CmdDel)
		os.Exit(0)
	}

	// API 1.21 is the first version that supports docker network commands
	dockerClient, err := docker.NewVersionedClientFromEnv("1.21")
	if err != nil {
		Log.Fatalf("unable to connect to docker: %s", err)
	}

	Log.Println("Weave plugin", version, "Command line options:", os.Args[1:])
	if noMulticastRoute {
		Log.Warning("--no-multicast-route option has been removed; multicast is off by default")
	}
	Log.Info(dockerClient.Info())

	err = run(dockerClient, weave, address, meshAddress)
	if err != nil {
		Log.Fatal(err)
	}
}
Example #3
0
File: main.go Project: brb/weave
func main() {
	var (
		justVersion      bool
		address          string
		meshAddress      string
		logLevel         string
		noMulticastRoute bool
	)

	flag.BoolVar(&justVersion, "version", false, "print version and exit")
	flag.StringVar(&logLevel, "log-level", "info", "logging level (debug, info, warning, error)")
	flag.StringVar(&address, "socket", "/run/docker/plugins/weave.sock", "socket on which to listen")
	flag.StringVar(&meshAddress, "meshsocket", "/run/docker/plugins/weavemesh.sock", "socket on which to listen in mesh mode")
	flag.BoolVar(&noMulticastRoute, "no-multicast-route", false, "do not add a multicast route to network endpoints")

	flag.Parse()

	if justVersion {
		fmt.Printf("weave plugin %s\n", version)
		os.Exit(0)
	}

	SetLogLevel(logLevel)

	// API 1.21 is the first version that supports docker network commands
	dockerClient, err := docker.NewVersionedClientFromEnv("1.21")
	if err != nil {
		Log.Fatalf("unable to connect to docker: %s", err)
	}

	weave := weaveapi.NewClient(os.Getenv("WEAVE_HTTP_ADDR"))

	Log.Println("Weave plugin", version, "Command line options:", os.Args[1:])
	Log.Info(dockerClient.Info())

	err = run(dockerClient, weave, address, meshAddress, noMulticastRoute)
	if err != nil {
		Log.Fatal(err)
	}
}
Example #4
0
func main() {
	var (
		justVersion      bool
		address          string
		nameserver       string
		meshAddress      string
		logLevel         string
		meshNetworkName  string
		noMulticastRoute bool
		removeNetwork    bool
	)

	flag.BoolVar(&justVersion, "version", false, "print version and exit")
	flag.StringVar(&logLevel, "log-level", "info", "logging level (debug, info, warning, error)")
	flag.StringVar(&address, "socket", "/run/docker/plugins/weave.sock", "socket on which to listen")
	flag.StringVar(&nameserver, "nameserver", "", "nameserver to provide to containers")
	flag.StringVar(&meshAddress, "meshsocket", "/run/docker/plugins/weavemesh.sock", "socket on which to listen in mesh mode")
	flag.StringVar(&meshNetworkName, "mesh-network-name", "weave", "network name to create in mesh mode")
	flag.BoolVar(&noMulticastRoute, "no-multicast-route", false, "do not add a multicast route to network endpoints")
	flag.BoolVar(&removeNetwork, "remove-network", false, "remove mesh network and exit")

	flag.Parse()

	if justVersion {
		fmt.Printf("weave plugin %s\n", version)
		os.Exit(0)
	}

	SetLogLevel(logLevel)

	// API 1.21 is the first version that supports docker network commands
	dockerClient, err := docker.NewVersionedClientFromEnv("1.21")
	if err != nil {
		Log.Fatalf("unable to connect to docker: %s", err)
	}

	if removeNetwork {
		if _, err = dockerClient.Client.NetworkInfo(meshNetworkName); err == nil {
			err = dockerClient.Client.RemoveNetwork(meshNetworkName)
			if err != nil {
				Log.Fatalf("unable to remove network: %s", err)
			}
		}
		os.Exit(0)
	}

	Log.Println("Weave plugin", version, "Command line options:", os.Args[1:])
	Log.Info(dockerClient.Info())

	var globalListener, meshListener net.Listener
	endChan := make(chan error, 1)
	if address != "" {
		globalListener, err := listenAndServe(dockerClient, address, nameserver, noMulticastRoute, endChan, "global", false)
		if err != nil {
			Log.Fatalf("unable to create driver: %s", err)
		}
		defer globalListener.Close()
	}
	if meshAddress != "" {
		meshListener, err := listenAndServe(dockerClient, meshAddress, nameserver, noMulticastRoute, endChan, "local", true)
		if err != nil {
			Log.Fatalf("unable to create driver: %s", err)
		}
		defer meshListener.Close()
	}

	if meshNetworkName != "" {
		createNetwork(dockerClient, meshNetworkName, meshAddress)
	}

	sigChan := make(chan os.Signal, 1)
	signal.Notify(sigChan, os.Interrupt, os.Kill, syscall.SIGTERM)

	select {
	case sig := <-sigChan:
		Log.Debugf("Caught signal %s; shutting down", sig)
		if err := dockerClient.Client.RemoveNetwork(meshNetworkName); err != nil {
			Log.Fatal(err)
		}
	case err := <-endChan:
		if err != nil {
			Log.Errorf("Error from listener: %s", err)
			globalListener.Close()
			meshListener.Close()
			os.Exit(1)
		}
	}
}