github.com/flavio/docker@v0.1.3-0.20170117145210-f63d1a6eec47/daemon/config_unix.go (about) 1 // +build linux freebsd 2 3 package daemon 4 5 import ( 6 "fmt" 7 8 "github.com/docker/docker/opts" 9 units "github.com/docker/go-units" 10 "github.com/spf13/pflag" 11 ) 12 13 var ( 14 defaultPidFile = "/var/run/docker.pid" 15 defaultGraph = "/var/lib/docker" 16 defaultExecRoot = "/var/run/docker" 17 ) 18 19 // Config defines the configuration of a docker daemon. 20 // It includes json tags to deserialize configuration from a file 21 // using the same names that the flags in the command line uses. 22 type Config struct { 23 CommonConfig 24 25 // These fields are common to all unix platforms. 26 CommonUnixConfig 27 28 // Fields below here are platform specific. 29 CgroupParent string `json:"cgroup-parent,omitempty"` 30 EnableSelinuxSupport bool `json:"selinux-enabled,omitempty"` 31 RemappedRoot string `json:"userns-remap,omitempty"` 32 Ulimits map[string]*units.Ulimit `json:"default-ulimits,omitempty"` 33 CPURealtimePeriod int64 `json:"cpu-rt-period,omitempty"` 34 CPURealtimeRuntime int64 `json:"cpu-rt-runtime,omitempty"` 35 OOMScoreAdjust int `json:"oom-score-adjust,omitempty"` 36 Init bool `json:"init,omitempty"` 37 InitPath string `json:"init-path,omitempty"` 38 SeccompProfile string `json:"seccomp-profile,omitempty"` 39 } 40 41 // bridgeConfig stores all the bridge driver specific 42 // configuration. 43 type bridgeConfig struct { 44 commonBridgeConfig 45 46 // These fields are common to all unix platforms. 47 commonUnixBridgeConfig 48 49 // Fields below here are platform specific. 50 EnableIPv6 bool `json:"ipv6,omitempty"` 51 EnableIPTables bool `json:"iptables,omitempty"` 52 EnableIPForward bool `json:"ip-forward,omitempty"` 53 EnableIPMasq bool `json:"ip-masq,omitempty"` 54 EnableUserlandProxy bool `json:"userland-proxy,omitempty"` 55 UserlandProxyPath string `json:"userland-proxy-path,omitempty"` 56 FixedCIDRv6 string `json:"fixed-cidr-v6,omitempty"` 57 } 58 59 // InstallFlags adds flags to the pflag.FlagSet to configure the daemon 60 func (config *Config) InstallFlags(flags *pflag.FlagSet) { 61 // First handle install flags which are consistent cross-platform 62 config.InstallCommonFlags(flags) 63 64 // Then install flags common to unix platforms 65 config.InstallCommonUnixFlags(flags) 66 67 config.Ulimits = make(map[string]*units.Ulimit) 68 69 // Then platform-specific install flags 70 flags.BoolVar(&config.EnableSelinuxSupport, "selinux-enabled", false, "Enable selinux support") 71 flags.Var(opts.NewUlimitOpt(&config.Ulimits), "default-ulimit", "Default ulimits for containers") 72 flags.BoolVar(&config.bridgeConfig.EnableIPTables, "iptables", true, "Enable addition of iptables rules") 73 flags.BoolVar(&config.bridgeConfig.EnableIPForward, "ip-forward", true, "Enable net.ipv4.ip_forward") 74 flags.BoolVar(&config.bridgeConfig.EnableIPMasq, "ip-masq", true, "Enable IP masquerading") 75 flags.BoolVar(&config.bridgeConfig.EnableIPv6, "ipv6", false, "Enable IPv6 networking") 76 flags.StringVar(&config.ExecRoot, "exec-root", defaultExecRoot, "Root directory for execution state files") 77 flags.StringVar(&config.bridgeConfig.FixedCIDRv6, "fixed-cidr-v6", "", "IPv6 subnet for fixed IPs") 78 flags.BoolVar(&config.bridgeConfig.EnableUserlandProxy, "userland-proxy", true, "Use userland proxy for loopback traffic") 79 flags.StringVar(&config.bridgeConfig.UserlandProxyPath, "userland-proxy-path", "", "Path to the userland proxy binary") 80 flags.BoolVar(&config.EnableCors, "api-enable-cors", false, "Enable CORS headers in the Engine API, this is deprecated by --api-cors-header") 81 flags.MarkDeprecated("api-enable-cors", "Please use --api-cors-header") 82 flags.StringVar(&config.CgroupParent, "cgroup-parent", "", "Set parent cgroup for all containers") 83 flags.StringVar(&config.RemappedRoot, "userns-remap", "", "User/Group setting for user namespaces") 84 flags.StringVar(&config.ContainerdAddr, "containerd", "", "Path to containerd socket") 85 flags.BoolVar(&config.LiveRestoreEnabled, "live-restore", false, "Enable live restore of docker when containers are still running") 86 flags.IntVar(&config.OOMScoreAdjust, "oom-score-adjust", -500, "Set the oom_score_adj for the daemon") 87 flags.BoolVar(&config.Init, "init", false, "Run an init in the container to forward signals and reap processes") 88 flags.StringVar(&config.InitPath, "init-path", "", "Path to the docker-init binary") 89 flags.Int64Var(&config.CPURealtimePeriod, "cpu-rt-period", 0, "Limit the CPU real-time period in microseconds") 90 flags.Int64Var(&config.CPURealtimeRuntime, "cpu-rt-runtime", 0, "Limit the CPU real-time runtime in microseconds") 91 flags.StringVar(&config.SeccompProfile, "seccomp-profile", "", "Path to seccomp profile") 92 93 config.attachExperimentalFlags(flags) 94 } 95 96 func (config *Config) isSwarmCompatible() error { 97 if config.ClusterStore != "" || config.ClusterAdvertise != "" { 98 return fmt.Errorf("--cluster-store and --cluster-advertise daemon configurations are incompatible with swarm mode") 99 } 100 if config.LiveRestoreEnabled { 101 return fmt.Errorf("--live-restore daemon configuration is incompatible with swarm mode") 102 } 103 return nil 104 }