Extract daemon configuration and discovery to their own package

This also moves some cli specific in `cmd/dockerd` as it does not
really belong to the `daemon/config` package.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

1 files changed, 51 insertions, 0 deletions

diff --git a/cmd/dockerd/config_unix.go b/cmd/dockerd/config_unix.go
new file mode 100644
index 0000000000..d79f0b5c9a
--- /dev/null
+++ b/cmd/dockerd/config_unix.go
@@ -0,0 +1,51 @@
+// +build linux,!solaris freebsd,!solaris
+
+package main
+
+import (
+	"github.com/docker/docker/daemon/config"
+	"github.com/docker/docker/opts"
+	units "github.com/docker/go-units"
+	"github.com/spf13/pflag"
+)
+
+// installConfigFlags adds flags to the pflag.FlagSet to configure the daemon
+func installConfigFlags(conf *config.Config, flags *pflag.FlagSet) {
+	// First handle install flags which are consistent cross-platform
+	installCommonConfigFlags(conf, flags)
+
+	// Then install flags common to unix platforms
+	installUnixConfigFlags(conf, flags)
+
+	conf.Ulimits = make(map[string]*units.Ulimit)
+
+	// Set default value for `--default-shm-size`
+	conf.ShmSize = opts.MemBytes(config.DefaultShmSize)
+
+	// Then platform-specific install flags
+	flags.BoolVar(&conf.EnableSelinuxSupport, "selinux-enabled", false, "Enable selinux support")
+	flags.Var(opts.NewUlimitOpt(&conf.Ulimits), "default-ulimit", "Default ulimits for containers")
+	flags.BoolVar(&conf.BridgeConfig.EnableIPTables, "iptables", true, "Enable addition of iptables rules")
+	flags.BoolVar(&conf.BridgeConfig.EnableIPForward, "ip-forward", true, "Enable net.ipv4.ip_forward")
+	flags.BoolVar(&conf.BridgeConfig.EnableIPMasq, "ip-masq", true, "Enable IP masquerading")
+	flags.BoolVar(&conf.BridgeConfig.EnableIPv6, "ipv6", false, "Enable IPv6 networking")
+	flags.StringVar(&conf.ExecRoot, "exec-root", defaultExecRoot, "Root directory for execution state files")
+	flags.StringVar(&conf.BridgeConfig.FixedCIDRv6, "fixed-cidr-v6", "", "IPv6 subnet for fixed IPs")
+	flags.BoolVar(&conf.BridgeConfig.EnableUserlandProxy, "userland-proxy", true, "Use userland proxy for loopback traffic")
+	flags.StringVar(&conf.BridgeConfig.UserlandProxyPath, "userland-proxy-path", "", "Path to the userland proxy binary")
+	flags.BoolVar(&conf.EnableCors, "api-enable-cors", false, "Enable CORS headers in the Engine API, this is deprecated by --api-cors-header")
+	flags.MarkDeprecated("api-enable-cors", "Please use --api-cors-header")
+	flags.StringVar(&conf.CgroupParent, "cgroup-parent", "", "Set parent cgroup for all containers")
+	flags.StringVar(&conf.RemappedRoot, "userns-remap", "", "User/Group setting for user namespaces")
+	flags.StringVar(&conf.ContainerdAddr, "containerd", "", "Path to containerd socket")
+	flags.BoolVar(&conf.LiveRestoreEnabled, "live-restore", false, "Enable live restore of docker when containers are still running")
+	flags.IntVar(&conf.OOMScoreAdjust, "oom-score-adjust", -500, "Set the oom_score_adj for the daemon")
+	flags.BoolVar(&conf.Init, "init", false, "Run an init in the container to forward signals and reap processes")
+	flags.StringVar(&conf.InitPath, "init-path", "", "Path to the docker-init binary")
+	flags.Int64Var(&conf.CPURealtimePeriod, "cpu-rt-period", 0, "Limit the CPU real-time period in microseconds")
+	flags.Int64Var(&conf.CPURealtimeRuntime, "cpu-rt-runtime", 0, "Limit the CPU real-time runtime in microseconds")
+	flags.StringVar(&conf.SeccompProfile, "seccomp-profile", "", "Path to seccomp profile")
+	flags.Var(&conf.ShmSize, "default-shm-size", "Default shm size for containers")
+
+	attachExperimentalFlags(conf, flags)
+}