package daemonconfig import ( "github.com/dotcloud/docker/daemon/networkdriver" "github.com/dotcloud/docker/engine" "net" ) const ( defaultNetworkMtu = 1500 DisableNetworkBridge = "none" ) // FIXME: separate runtime configuration from http api configuration type Config struct { Pidfile string Root string AutoRestart bool Dns []string DnsSearch []string EnableIptables bool EnableIpForward bool DefaultIp net.IP BridgeIface string BridgeIP string InterContainerCommunication bool GraphDriver string ExecDriver string Mtu int DisableNetwork bool EnableSelinuxSupport bool } // ConfigFromJob creates and returns a new DaemonConfig object // by parsing the contents of a job's environment. func ConfigFromJob(job *engine.Job) *Config { config := &Config{ Pidfile: job.Getenv("Pidfile"), Root: job.Getenv("Root"), AutoRestart: job.GetenvBool("AutoRestart"), EnableIptables: job.GetenvBool("EnableIptables"), EnableIpForward: job.GetenvBool("EnableIpForward"), BridgeIP: job.Getenv("BridgeIP"), BridgeIface: job.Getenv("BridgeIface"), DefaultIp: net.ParseIP(job.Getenv("DefaultIp")), InterContainerCommunication: job.GetenvBool("InterContainerCommunication"), GraphDriver: job.Getenv("GraphDriver"), ExecDriver: job.Getenv("ExecDriver"), EnableSelinuxSupport: false, // FIXME: hardcoded default to disable selinux for .10 release } if dns := job.GetenvList("Dns"); dns != nil { config.Dns = dns } if dnsSearch := job.GetenvList("DnsSearch"); dnsSearch != nil { config.DnsSearch = dnsSearch } if mtu := job.GetenvInt("Mtu"); mtu != 0 { config.Mtu = mtu } else { config.Mtu = GetDefaultNetworkMtu() } config.DisableNetwork = config.BridgeIface == DisableNetworkBridge return config } func GetDefaultNetworkMtu() int { if iface, err := networkdriver.GetDefaultRouteIface(); err == nil { return iface.MTU } return defaultNetworkMtu }