github.com/squaremo/docker@v1.3.2-0.20150516120342-42cfc9554972/daemon/config.go (about)

     1  package daemon
     2  
     3  import (
     4  	"github.com/docker/docker/daemon/networkdriver"
     5  	"github.com/docker/docker/daemon/networkdriver/bridge"
     6  	"github.com/docker/docker/opts"
     7  	flag "github.com/docker/docker/pkg/mflag"
     8  	"github.com/docker/docker/runconfig"
     9  )
    10  
    11  const (
    12  	defaultNetworkMtu    = 1500
    13  	disableNetworkBridge = "none"
    14  )
    15  
    16  // CommonConfig defines the configuration of a docker daemon which are
    17  // common across platforms.
    18  type CommonConfig struct {
    19  	AutoRestart    bool
    20  	Bridge         bridge.Config
    21  	Context        map[string][]string
    22  	CorsHeaders    string
    23  	DisableNetwork bool
    24  	Dns            []string
    25  	DnsSearch      []string
    26  	EnableCors     bool
    27  	ExecDriver     string
    28  	ExecRoot       string
    29  	GraphDriver    string
    30  	Labels         []string
    31  	LogConfig      runconfig.LogConfig
    32  	Mtu            int
    33  	Pidfile        string
    34  	Root           string
    35  	TrustKeyPath   string
    36  }
    37  
    38  // InstallCommonFlags adds command-line options to the top-level flag parser for
    39  // the current process.
    40  // Subsequent calls to `flag.Parse` will populate config with values parsed
    41  // from the command-line.
    42  
    43  func (config *Config) InstallCommonFlags() {
    44  	flag.StringVar(&config.Pidfile, []string{"p", "-pidfile"}, defaultPidFile, "Path to use for daemon PID file")
    45  	flag.StringVar(&config.Root, []string{"g", "-graph"}, defaultGraph, "Root of the Docker runtime")
    46  	flag.StringVar(&config.ExecRoot, []string{"-exec-root"}, "/var/run/docker", "Root of the Docker execdriver")
    47  	flag.BoolVar(&config.AutoRestart, []string{"#r", "#-restart"}, true, "--restart on the daemon has been deprecated in favor of --restart policies on docker run")
    48  	flag.BoolVar(&config.Bridge.EnableIptables, []string{"#iptables", "-iptables"}, true, "Enable addition of iptables rules")
    49  	flag.BoolVar(&config.Bridge.EnableIpForward, []string{"#ip-forward", "-ip-forward"}, true, "Enable net.ipv4.ip_forward")
    50  	flag.BoolVar(&config.Bridge.EnableIpMasq, []string{"-ip-masq"}, true, "Enable IP masquerading")
    51  	flag.BoolVar(&config.Bridge.EnableIPv6, []string{"-ipv6"}, false, "Enable IPv6 networking")
    52  	flag.StringVar(&config.Bridge.IP, []string{"#bip", "-bip"}, "", "Specify network bridge IP")
    53  	flag.StringVar(&config.Bridge.Iface, []string{"b", "-bridge"}, "", "Attach containers to a network bridge")
    54  	flag.StringVar(&config.Bridge.FixedCIDR, []string{"-fixed-cidr"}, "", "IPv4 subnet for fixed IPs")
    55  	flag.StringVar(&config.Bridge.FixedCIDRv6, []string{"-fixed-cidr-v6"}, "", "IPv6 subnet for fixed IPs")
    56  	flag.StringVar(&config.Bridge.DefaultGatewayIPv4, []string{"-default-gateway"}, "", "Container default gateway IPv4 address")
    57  	flag.StringVar(&config.Bridge.DefaultGatewayIPv6, []string{"-default-gateway-v6"}, "", "Container default gateway IPv6 address")
    58  	flag.BoolVar(&config.Bridge.InterContainerCommunication, []string{"#icc", "-icc"}, true, "Enable inter-container communication")
    59  	flag.StringVar(&config.GraphDriver, []string{"s", "-storage-driver"}, "", "Storage driver to use")
    60  	flag.StringVar(&config.ExecDriver, []string{"e", "-exec-driver"}, "native", "Exec driver to use")
    61  	flag.IntVar(&config.Mtu, []string{"#mtu", "-mtu"}, 0, "Set the containers network MTU")
    62  	flag.BoolVar(&config.EnableCors, []string{"#api-enable-cors", "#-api-enable-cors"}, false, "Enable CORS headers in the remote API, this is deprecated by --api-cors-header")
    63  	flag.StringVar(&config.CorsHeaders, []string{"-api-cors-header"}, "", "Set CORS headers in the remote API")
    64  	opts.IPVar(&config.Bridge.DefaultIp, []string{"#ip", "-ip"}, "0.0.0.0", "Default IP when binding container ports")
    65  	// FIXME: why the inconsistency between "hosts" and "sockets"?
    66  	opts.IPListVar(&config.Dns, []string{"#dns", "-dns"}, "DNS server to use")
    67  	opts.DnsSearchListVar(&config.DnsSearch, []string{"-dns-search"}, "DNS search domains to use")
    68  	opts.LabelListVar(&config.Labels, []string{"-label"}, "Set key=value labels to the daemon")
    69  	flag.StringVar(&config.LogConfig.Type, []string{"-log-driver"}, "json-file", "Default driver for container logs")
    70  	opts.LogOptsVar(config.LogConfig.Config, []string{"-log-opt"}, "Set log driver options")
    71  	flag.BoolVar(&config.Bridge.EnableUserlandProxy, []string{"-userland-proxy"}, true, "Use userland proxy for loopback traffic")
    72  
    73  }
    74  
    75  func getDefaultNetworkMtu() int {
    76  	if iface, err := networkdriver.GetDefaultRouteIface(); err == nil {
    77  		return iface.MTU
    78  	}
    79  	return defaultNetworkMtu
    80  }