github.com/kobeld/docker@v1.12.0-rc1/api/client/node/promote.go (about)

     1  package node
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"github.com/docker/docker/api/client"
     7  	"github.com/docker/docker/cli"
     8  	"github.com/docker/engine-api/types/swarm"
     9  	"github.com/spf13/cobra"
    10  	"github.com/spf13/pflag"
    11  )
    12  
    13  func newPromoteCommand(dockerCli *client.DockerCli) *cobra.Command {
    14  	var flags *pflag.FlagSet
    15  
    16  	cmd := &cobra.Command{
    17  		Use:   "promote NODE [NODE...]",
    18  		Short: "Promote a node to a manager in the swarm",
    19  		Args:  cli.RequiresMinArgs(1),
    20  		RunE: func(cmd *cobra.Command, args []string) error {
    21  			return runPromote(dockerCli, flags, args)
    22  		},
    23  	}
    24  
    25  	flags = cmd.Flags()
    26  	return cmd
    27  }
    28  
    29  func runPromote(dockerCli *client.DockerCli, flags *pflag.FlagSet, args []string) error {
    30  	for _, id := range args {
    31  		if err := runUpdate(dockerCli, id, func(node *swarm.Node) {
    32  			node.Spec.Role = swarm.NodeRoleManager
    33  		}); err != nil {
    34  			return err
    35  		}
    36  		fmt.Println(id, "attempting to promote a node to a manager in the swarm.")
    37  	}
    38  
    39  	return nil
    40  }