func runInit(dockerCli command.Cli, flags *pflag.FlagSet, opts initOptions) error {
client := dockerCli.Client()
ctx := context.Background()
req := swarm.InitRequest{
ListenAddr: opts.listenAddr.String(),
AdvertiseAddr: opts.advertiseAddr,
ForceNewCluster: opts.forceNewCluster,
Spec: opts.swarmOptions.ToSpec(flags),
AutoLockManagers: opts.swarmOptions.autolock,
}
if flags.Changed(flagAvailability) {
availability := swarm.NodeAvailability(strings.ToLower(opts.availability))
switch availability {
case swarm.NodeAvailabilityActive, swarm.NodeAvailabilityPause, swarm.NodeAvailabilityDrain:
req.Availability = availability
default:
return fmt.Errorf("invalid availability %q, only active, pause and drain are supported", opts.availability)
}
}
nodeID, err := client.SwarmInit(ctx, req)
if err != nil {
if strings.Contains(err.Error(), "could not choose an IP address to advertise") || strings.Contains(err.Error(), "could not find the system's IP address") {
return errors.New(err.Error() + " - specify one with --advertise-addr")
}
return err
}
fmt.Fprintf(dockerCli.Out(), "Swarm initialized: current node (%s) is now a manager.\n\n", nodeID)
if err := printJoinCommand(ctx, dockerCli, nodeID, false, true); err != nil {
return err
}
fmt.Fprint(dockerCli.Out(), "To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.\n\n")
if req.AutoLockManagers {
unlockKeyResp, err := client.SwarmGetUnlockKey(ctx)
if err != nil {
return errors.Wrap(err, "could not fetch unlock key")
}
printUnlockCommand(ctx, dockerCli, unlockKeyResp.UnlockKey)
}
return nil
}
// Init initializes a new swarm cluster.
func (d *SwarmDaemon) Init(req swarm.InitRequest) error {
if req.ListenAddr == "" {
req.ListenAddr = d.listenAddr
}
status, out, err := d.SockRequest("POST", "/swarm/init", req)
if status != http.StatusOK {
return fmt.Errorf("initializing swarm: invalid statuscode %v, %q", status, out)
}
if err != nil {
return fmt.Errorf("initializing swarm: %v", err)
}
info, err := d.info()
if err != nil {
return err
}
d.Info = info
return nil
}