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moby--moby/cmd/dockerd/config.go
Flavio Crisciani f9f25ca5e4
Allow to set the control plane MTU
Add daemon config to allow the user to specify the MTU of the control plane network.
The first user of this new parameter is actually libnetwork that can seed the
gossip with the proper MTU value allowing to pack multiple messages per UDP packet sent.
If the value is not specified or is lower than 1500 the logic will set it to the default.

Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
2017-07-28 13:52:03 -07:00

77 lines
4.7 KiB
Go

package main
import (
"runtime"
"github.com/docker/docker/daemon/config"
"github.com/docker/docker/opts"
"github.com/spf13/pflag"
)
const (
// defaultShutdownTimeout is the default shutdown timeout for the daemon
defaultShutdownTimeout = 15
// defaultTrustKeyFile is the default filename for the trust key
defaultTrustKeyFile = "key.json"
)
// installCommonConfigFlags adds flags to the pflag.FlagSet to configure the daemon
func installCommonConfigFlags(conf *config.Config, flags *pflag.FlagSet) {
var maxConcurrentDownloads, maxConcurrentUploads int
conf.ServiceOptions.InstallCliFlags(flags)
flags.Var(opts.NewNamedListOptsRef("storage-opts", &conf.GraphOptions, nil), "storage-opt", "Storage driver options")
flags.Var(opts.NewNamedListOptsRef("authorization-plugins", &conf.AuthorizationPlugins, nil), "authorization-plugin", "Authorization plugins to load")
flags.Var(opts.NewNamedListOptsRef("exec-opts", &conf.ExecOptions, nil), "exec-opt", "Runtime execution options")
flags.StringVarP(&conf.Pidfile, "pidfile", "p", defaultPidFile, "Path to use for daemon PID file")
flags.StringVarP(&conf.Root, "graph", "g", defaultDataRoot, "Root of the Docker runtime")
// "--graph" is "soft-deprecated" in favor of "data-root". This flag was added
// before Docker 1.0, so won't be removed, only hidden, to discourage its usage.
flags.MarkHidden("graph")
flags.StringVar(&conf.Root, "data-root", defaultDataRoot, "Root directory of persistent Docker state")
flags.BoolVarP(&conf.AutoRestart, "restart", "r", true, "--restart on the daemon has been deprecated in favor of --restart policies on docker run")
flags.MarkDeprecated("restart", "Please use a restart policy on docker run")
// Windows doesn't support setting the storage driver - there is no choice as to which ones to use.
if runtime.GOOS != "windows" {
flags.StringVarP(&conf.GraphDriver, "storage-driver", "s", "", "Storage driver to use")
}
flags.IntVar(&conf.Mtu, "mtu", 0, "Set the containers network MTU")
flags.BoolVar(&conf.RawLogs, "raw-logs", false, "Full timestamps without ANSI coloring")
flags.Var(opts.NewListOptsRef(&conf.DNS, opts.ValidateIPAddress), "dns", "DNS server to use")
flags.Var(opts.NewNamedListOptsRef("dns-opts", &conf.DNSOptions, nil), "dns-opt", "DNS options to use")
flags.Var(opts.NewListOptsRef(&conf.DNSSearch, opts.ValidateDNSSearch), "dns-search", "DNS search domains to use")
flags.Var(opts.NewNamedListOptsRef("labels", &conf.Labels, opts.ValidateLabel), "label", "Set key=value labels to the daemon")
flags.StringVar(&conf.LogConfig.Type, "log-driver", "json-file", "Default driver for container logs")
flags.Var(opts.NewNamedMapOpts("log-opts", conf.LogConfig.Config, nil), "log-opt", "Default log driver options for containers")
flags.StringVar(&conf.ClusterAdvertise, "cluster-advertise", "", "Address or interface name to advertise")
flags.StringVar(&conf.ClusterStore, "cluster-store", "", "URL of the distributed storage backend")
flags.Var(opts.NewNamedMapOpts("cluster-store-opts", conf.ClusterOpts, nil), "cluster-store-opt", "Set cluster store options")
flags.StringVar(&conf.CorsHeaders, "api-cors-header", "", "Set CORS headers in the Engine API")
flags.IntVar(&maxConcurrentDownloads, "max-concurrent-downloads", config.DefaultMaxConcurrentDownloads, "Set the max concurrent downloads for each pull")
flags.IntVar(&maxConcurrentUploads, "max-concurrent-uploads", config.DefaultMaxConcurrentUploads, "Set the max concurrent uploads for each push")
flags.IntVar(&conf.ShutdownTimeout, "shutdown-timeout", defaultShutdownTimeout, "Set the default shutdown timeout")
flags.StringVar(&conf.SwarmDefaultAdvertiseAddr, "swarm-default-advertise-addr", "", "Set default address or interface for swarm advertised address")
flags.BoolVar(&conf.Experimental, "experimental", false, "Enable experimental features")
flags.StringVar(&conf.MetricsAddress, "metrics-addr", "", "Set default address and port to serve the metrics api on")
flags.StringVar(&conf.NodeGenericResources, "node-generic-resources", "", "user defined resources (e.g. fpga=2;gpu={UUID1,UUID2,UUID3})")
flags.IntVar(&conf.NetworkControlPlaneMTU, "network-control-plane-mtu", config.DefaultNetworkMtu, "Network Control plane MTU")
// "--deprecated-key-path" is to allow configuration of the key used
// for the daemon ID and the deprecated image signing. It was never
// exposed as a command line option but is added here to allow
// overriding the default path in configuration.
flags.Var(opts.NewQuotedString(&conf.TrustKeyPath), "deprecated-key-path", "Path to key file for ID and image signing")
flags.MarkHidden("deprecated-key-path")
conf.MaxConcurrentDownloads = &maxConcurrentDownloads
conf.MaxConcurrentUploads = &maxConcurrentUploads
}