package main import ( "flag" "fmt" "github.com/dotcloud/docker" "github.com/dotcloud/docker/engine" "github.com/dotcloud/docker/sysinit" "github.com/dotcloud/docker/utils" "log" "os" "strings" ) var ( GITCOMMIT string VERSION string ) func main() { if selfPath := utils.SelfPath(); selfPath == "/sbin/init" || selfPath == "/.dockerinit" { // Running in init mode sysinit.SysInit() return } var ( flVersion = flag.Bool("v", false, "Print version information and quit") flDaemon = flag.Bool("d", false, "Enable daemon mode") flDebug = flag.Bool("D", false, "Enable debug mode") flAutoRestart = flag.Bool("r", true, "Restart previously running containers") bridgeName = flag.String("b", "", "Attach containers to a pre-existing network bridge; use 'none' to disable container networking") pidfile = flag.String("p", "/var/run/docker.pid", "Path to use for daemon PID file") flRoot = flag.String("g", "/var/lib/docker", "Path to use as the root of the docker runtime") flEnableCors = flag.Bool("api-enable-cors", false, "Enable CORS headers in the remote API") flDns = docker.NewListOpts(docker.ValidateIp4Address) flEnableIptables = flag.Bool("iptables", true, "Disable docker's addition of iptables rules") flDefaultIp = flag.String("ip", "0.0.0.0", "Default IP address to use when binding container ports") flInterContainerComm = flag.Bool("icc", true, "Enable inter-container communication") flGraphDriver = flag.String("s", "", "Force the docker runtime to use a specific storage driver") flHosts = docker.NewListOpts(docker.ValidateHost) ) flag.Var(&flDns, "dns", "Force docker to use specific DNS servers") flag.Var(&flHosts, "H", "Multiple tcp://host:port or unix://path/to/socket to bind in daemon mode, single connection otherwise") flag.Parse() if *flVersion { showVersion() return } if flHosts.Len() == 0 { // If we do not have a host, default to unix socket flHosts.Set(fmt.Sprintf("unix://%s", docker.DEFAULTUNIXSOCKET)) } if *flDebug { os.Setenv("DEBUG", "1") } docker.GITCOMMIT = GITCOMMIT docker.VERSION = VERSION if *flDaemon { if flag.NArg() != 0 { flag.Usage() return } eng, err := engine.New(*flRoot) if err != nil { log.Fatal(err) } // Load plugin: httpapi job := eng.Job("initapi") job.Setenv("Pidfile", *pidfile) job.Setenv("Root", *flRoot) job.SetenvBool("AutoRestart", *flAutoRestart) job.SetenvBool("EnableCors", *flEnableCors) job.SetenvList("Dns", flDns.GetAll()) job.SetenvBool("EnableIptables", *flEnableIptables) job.Setenv("BridgeIface", *bridgeName) job.Setenv("DefaultIp", *flDefaultIp) job.SetenvBool("InterContainerCommunication", *flInterContainerComm) job.Setenv("GraphDriver", *flGraphDriver) if err := job.Run(); err != nil { log.Fatal(err) } // Serve api job = eng.Job("serveapi", flHosts.GetAll()...) job.SetenvBool("Logging", true) if err := job.Run(); err != nil { log.Fatal(err) } } else { if flHosts.Len() > 1 { log.Fatal("Please specify only one -H") } protoAddrParts := strings.SplitN(flHosts.GetAll()[0], "://", 2) if err := docker.ParseCommands(protoAddrParts[0], protoAddrParts[1], flag.Args()...); err != nil { if sterr, ok := err.(*utils.StatusError); ok { if sterr.Status != "" { log.Println(sterr.Status) } os.Exit(sterr.StatusCode) } log.Fatal(err) } } } func showVersion() { fmt.Printf("Docker version %s, build %s\n", VERSION, GITCOMMIT) }