func (opts *nodeOptions) ToNodeSpec() (swarm.NodeSpec, error) {
var spec swarm.NodeSpec
spec.Annotations.Name = opts.annotations.name
spec.Annotations.Labels = runconfigopts.ConvertKVStringsToMap(opts.annotations.labels.GetAll())
switch swarm.NodeRole(strings.ToLower(opts.role)) {
case swarm.NodeRoleWorker:
spec.Role = swarm.NodeRoleWorker
case swarm.NodeRoleManager:
spec.Role = swarm.NodeRoleManager
case "":
default:
return swarm.NodeSpec{}, fmt.Errorf("invalid role %q, only worker and manager are supported", opts.role)
}
switch swarm.NodeAvailability(strings.ToLower(opts.availability)) {
case swarm.NodeAvailabilityActive:
spec.Availability = swarm.NodeAvailabilityActive
case swarm.NodeAvailabilityPause:
spec.Availability = swarm.NodeAvailabilityPause
case swarm.NodeAvailabilityDrain:
spec.Availability = swarm.NodeAvailabilityDrain
case "":
default:
return swarm.NodeSpec{}, fmt.Errorf("invalid availability %q, only active, pause and drain are supported", opts.availability)
}
return spec, nil
}
// NodeFromGRPC converts a grpc Node to a Node.
func NodeFromGRPC(n swarmapi.Node) types.Node {
node := types.Node{
ID: n.ID,
Spec: types.NodeSpec{
Role: types.NodeRole(strings.ToLower(n.Spec.Role.String())),
Availability: types.NodeAvailability(strings.ToLower(n.Spec.Availability.String())),
},
Status: types.NodeStatus{
State: types.NodeState(strings.ToLower(n.Status.State.String())),
Message: n.Status.Message,
Addr: n.Status.Addr,
},
}
// Meta
node.Version.Index = n.Meta.Version.Index
node.CreatedAt, _ = ptypes.Timestamp(n.Meta.CreatedAt)
node.UpdatedAt, _ = ptypes.Timestamp(n.Meta.UpdatedAt)
//Annotations
node.Spec.Name = n.Spec.Annotations.Name
node.Spec.Labels = n.Spec.Annotations.Labels
//Description
if n.Description != nil {
node.Description.Hostname = n.Description.Hostname
if n.Description.Platform != nil {
node.Description.Platform.Architecture = n.Description.Platform.Architecture
node.Description.Platform.OS = n.Description.Platform.OS
}
if n.Description.Resources != nil {
node.Description.Resources.NanoCPUs = n.Description.Resources.NanoCPUs
node.Description.Resources.MemoryBytes = n.Description.Resources.MemoryBytes
}
if n.Description.Engine != nil {
node.Description.Engine.EngineVersion = n.Description.Engine.EngineVersion
node.Description.Engine.Labels = n.Description.Engine.Labels
for _, plugin := range n.Description.Engine.Plugins {
node.Description.Engine.Plugins = append(node.Description.Engine.Plugins, types.PluginDescription{Type: plugin.Type, Name: plugin.Name})
}
}
}
//Manager
if n.ManagerStatus != nil {
node.ManagerStatus = &types.ManagerStatus{
Leader: n.ManagerStatus.Leader,
Reachability: types.Reachability(strings.ToLower(n.ManagerStatus.Reachability.String())),
Addr: n.ManagerStatus.Addr,
}
}
return node
}
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
}
func mergeNodeUpdate(flags *pflag.FlagSet) func(*swarm.Node) error {
return func(node *swarm.Node) error {
spec := &node.Spec
if flags.Changed(flagRole) {
str, err := flags.GetString(flagRole)
if err != nil {
return err
}
spec.Role = swarm.NodeRole(str)
}
if flags.Changed(flagAvailability) {
str, err := flags.GetString(flagAvailability)
if err != nil {
return err
}
spec.Availability = swarm.NodeAvailability(str)
}
if spec.Annotations.Labels == nil {
spec.Annotations.Labels = make(map[string]string)
}
if flags.Changed(flagLabelAdd) {
labels := flags.Lookup(flagLabelAdd).Value.(*opts.ListOpts).GetAll()
for k, v := range runconfigopts.ConvertKVStringsToMap(labels) {
spec.Annotations.Labels[k] = v
}
}
if flags.Changed(flagLabelRemove) {
keys := flags.Lookup(flagLabelRemove).Value.(*opts.ListOpts).GetAll()
for _, k := range keys {
// if a key doesn't exist, fail the command explicitly
if _, exists := spec.Annotations.Labels[k]; !exists {
return fmt.Errorf("key %s doesn't exist in node's labels", k)
}
delete(spec.Annotations.Labels, k)
}
}
return nil
}
}
func runJoin(dockerCli command.Cli, flags *pflag.FlagSet, opts joinOptions) error {
client := dockerCli.Client()
ctx := context.Background()
req := swarm.JoinRequest{
JoinToken: opts.token,
ListenAddr: opts.listenAddr.String(),
AdvertiseAddr: opts.advertiseAddr,
RemoteAddrs: []string{opts.remote},
}
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)
}
}
err := client.SwarmJoin(ctx, req)
if err != nil {
return err
}
info, err := client.Info(ctx)
if err != nil {
return err
}
if info.Swarm.ControlAvailable {
fmt.Fprintln(dockerCli.Out(), "This node joined a swarm as a manager.")
} else {
fmt.Fprintln(dockerCli.Out(), "This node joined a swarm as a worker.")
}
return nil
}