520e601dc2
Implementation of https://github.com/docker/docker/issues/28319
Signed-off-by: Ben Firshman <ben@firshman.co.uk>
(cherry picked from commit f0d55cd081)
Signed-off-by: Victor Vieux <victorvieux@gmail.com>
104 lines
5.1 KiB
Go
104 lines
5.1 KiB
Go
// +build linux freebsd
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package daemon
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import (
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"fmt"
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runconfigopts "github.com/docker/docker/runconfig/opts"
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units "github.com/docker/go-units"
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"github.com/spf13/pflag"
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)
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var (
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defaultPidFile = "/var/run/docker.pid"
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defaultGraph = "/var/lib/docker"
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defaultExecRoot = "/var/run/docker"
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)
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// Config defines the configuration of a docker daemon.
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// It includes json tags to deserialize configuration from a file
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// using the same names that the flags in the command line uses.
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type Config struct {
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CommonConfig
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// These fields are common to all unix platforms.
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CommonUnixConfig
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// Fields below here are platform specific.
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CgroupParent string `json:"cgroup-parent,omitempty"`
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EnableSelinuxSupport bool `json:"selinux-enabled,omitempty"`
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RemappedRoot string `json:"userns-remap,omitempty"`
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Ulimits map[string]*units.Ulimit `json:"default-ulimits,omitempty"`
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CPURealtimePeriod int64 `json:"cpu-rt-period,omitempty"`
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CPURealtimeRuntime int64 `json:"cpu-rt-runtime,omitempty"`
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OOMScoreAdjust int `json:"oom-score-adjust,omitempty"`
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Init bool `json:"init,omitempty"`
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InitPath string `json:"init-path,omitempty"`
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SeccompProfile string `json:"seccomp-profile,omitempty"`
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}
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// bridgeConfig stores all the bridge driver specific
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// configuration.
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type bridgeConfig struct {
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commonBridgeConfig
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// These fields are common to all unix platforms.
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commonUnixBridgeConfig
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// Fields below here are platform specific.
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EnableIPv6 bool `json:"ipv6,omitempty"`
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EnableIPTables bool `json:"iptables,omitempty"`
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EnableIPForward bool `json:"ip-forward,omitempty"`
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EnableIPMasq bool `json:"ip-masq,omitempty"`
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EnableUserlandProxy bool `json:"userland-proxy,omitempty"`
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UserlandProxyPath string `json:"userland-proxy-path,omitempty"`
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FixedCIDRv6 string `json:"fixed-cidr-v6,omitempty"`
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}
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// InstallFlags adds flags to the pflag.FlagSet to configure the daemon
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func (config *Config) InstallFlags(flags *pflag.FlagSet) {
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// First handle install flags which are consistent cross-platform
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config.InstallCommonFlags(flags)
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// Then install flags common to unix platforms
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config.InstallCommonUnixFlags(flags)
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config.Ulimits = make(map[string]*units.Ulimit)
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// Then platform-specific install flags
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flags.BoolVar(&config.EnableSelinuxSupport, "selinux-enabled", false, "Enable selinux support")
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flags.Var(runconfigopts.NewUlimitOpt(&config.Ulimits), "default-ulimit", "Default ulimits for containers")
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flags.BoolVar(&config.bridgeConfig.EnableIPTables, "iptables", true, "Enable addition of iptables rules")
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flags.BoolVar(&config.bridgeConfig.EnableIPForward, "ip-forward", true, "Enable net.ipv4.ip_forward")
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flags.BoolVar(&config.bridgeConfig.EnableIPMasq, "ip-masq", true, "Enable IP masquerading")
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flags.BoolVar(&config.bridgeConfig.EnableIPv6, "ipv6", false, "Enable IPv6 networking")
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flags.StringVar(&config.ExecRoot, "exec-root", defaultExecRoot, "Root directory for execution state files")
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flags.StringVar(&config.bridgeConfig.FixedCIDRv6, "fixed-cidr-v6", "", "IPv6 subnet for fixed IPs")
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flags.BoolVar(&config.bridgeConfig.EnableUserlandProxy, "userland-proxy", true, "Use userland proxy for loopback traffic")
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flags.StringVar(&config.bridgeConfig.UserlandProxyPath, "userland-proxy-path", "", "Path to the userland proxy binary")
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flags.BoolVar(&config.EnableCors, "api-enable-cors", false, "Enable CORS headers in the Engine API, this is deprecated by --api-cors-header")
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flags.MarkDeprecated("api-enable-cors", "Please use --api-cors-header")
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flags.StringVar(&config.CgroupParent, "cgroup-parent", "", "Set parent cgroup for all containers")
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flags.StringVar(&config.RemappedRoot, "userns-remap", "", "User/Group setting for user namespaces")
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flags.StringVar(&config.ContainerdAddr, "containerd", "", "Path to containerd socket")
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flags.BoolVar(&config.LiveRestoreEnabled, "live-restore", false, "Enable live restore of docker when containers are still running")
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flags.IntVar(&config.OOMScoreAdjust, "oom-score-adjust", -500, "Set the oom_score_adj for the daemon")
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flags.BoolVar(&config.Init, "init", false, "Run an init in the container to forward signals and reap processes")
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flags.StringVar(&config.InitPath, "init-path", "", "Path to the docker-init binary")
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flags.Int64Var(&config.CPURealtimePeriod, "cpu-rt-period", 0, "Limit the CPU real-time period in microseconds")
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flags.Int64Var(&config.CPURealtimeRuntime, "cpu-rt-runtime", 0, "Limit the CPU real-time runtime in microseconds")
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flags.StringVar(&config.SeccompProfile, "seccomp-profile", "", "Path to seccomp profile")
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config.attachExperimentalFlags(flags)
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}
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func (config *Config) isSwarmCompatible() error {
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if config.ClusterStore != "" || config.ClusterAdvertise != "" {
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return fmt.Errorf("--cluster-store and --cluster-advertise daemon configurations are incompatible with swarm mode")
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}
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if config.LiveRestoreEnabled {
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return fmt.Errorf("--live-restore daemon configuration is incompatible with swarm mode")
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}
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return nil
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}
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