Kir Kolyshkin 6f8070deb2 Switch from x/net/context to context
Since go 1.7, "context" is a standard package. Since go 1.9,
x/net/context merely provides some types aliased to those in
the standard context package.

The changes were performed by the following script:

for f in $(git ls-files \*.go | grep -v ^vendor/); do
	sed -i 's|golang.org/x/net/context|context|' $f
	goimports -w $f
	for i in 1 2; do
		awk '/^$/ {e=1; next;}
			/\t"context"$/ {e=0;}
			{if (e) {print ""; e=0}; print;}' < $f > $f.new && \
				mv $f.new $f
		goimports -w $f
	done
done

[v2: do awk/goimports fixup twice]
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
2018-05-11 16:49:43 -07:00

61 lines
1.6 KiB
Go

package node
import (
"context"
"errors"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/docker/api/types"
apiclient "github.com/docker/docker/client"
"github.com/spf13/cobra"
)
// NewNodeCommand returns a cobra command for `node` subcommands
func NewNodeCommand(dockerCli command.Cli) *cobra.Command {
cmd := &cobra.Command{
Use: "node",
Short: "Manage Swarm nodes",
Args: cli.NoArgs,
RunE: command.ShowHelp(dockerCli.Err()),
Annotations: map[string]string{
"version": "1.24",
"swarm": "",
},
}
cmd.AddCommand(
newDemoteCommand(dockerCli),
newInspectCommand(dockerCli),
newListCommand(dockerCli),
newPromoteCommand(dockerCli),
newRemoveCommand(dockerCli),
newPsCommand(dockerCli),
newUpdateCommand(dockerCli),
)
return cmd
}
// Reference returns the reference of a node. The special value "self" for a node
// reference is mapped to the current node, hence the node ID is retrieved using
// the `/info` endpoint.
func Reference(ctx context.Context, client apiclient.APIClient, ref string) (string, error) {
if ref == "self" {
info, err := client.Info(ctx)
if err != nil {
return "", err
}
if info.Swarm.NodeID == "" {
// If there's no node ID in /info, the node probably
// isn't a manager. Call a swarm-specific endpoint to
// get a more specific error message.
_, err = client.NodeList(ctx, types.NodeListOptions{})
if err != nil {
return "", err
}
return "", errors.New("node ID not found in /info")
}
return info.Swarm.NodeID, nil
}
return ref, nil
}