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cmd.go
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cmd.go
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package node
import (
"fmt"
"golang.org/x/net/context"
"github.com/spf13/cobra"
"github.com/docker/docker/api/client"
"github.com/docker/docker/cli"
apiclient "github.com/docker/engine-api/client"
)
// NewNodeCommand returns a cobra command for `node` subcommands
func NewNodeCommand(dockerCli *client.DockerCli) *cobra.Command {
cmd := &cobra.Command{
Use: "node",
Short: "Manage Docker Swarm nodes",
Args: cli.NoArgs,
Run: func(cmd *cobra.Command, args []string) {
fmt.Fprintf(dockerCli.Err(), "\n"+cmd.UsageString())
},
}
cmd.AddCommand(
newAcceptCommand(dockerCli),
newDemoteCommand(dockerCli),
newInspectCommand(dockerCli),
newListCommand(dockerCli),
newPromoteCommand(dockerCli),
newRemoveCommand(dockerCli),
newTasksCommand(dockerCli),
newUpdateCommand(dockerCli),
)
return cmd
}
func nodeReference(client apiclient.APIClient, ctx context.Context, ref string) (string, error) {
// The special value "self" for a node reference is mapped to the current
// node, hence the node ID is retrieved using the `/info` endpoint.
if ref == "self" {
info, err := client.Info(ctx)
if err != nil {
return "", err
}
return info.Swarm.NodeID, nil
}
return ref, nil
}