containerd/cmd/ctr/info.go
Yanqiang Miao b88b53212f Add 'ArgsUsage' for some ctr sub-cmds
Signed-off-by: Yanqiang Miao <miao.yanqiang@zte.com.cn>
2017-06-15 16:04:11 +08:00

42 lines
745 B
Go

package main
import (
"encoding/json"
"fmt"
"github.com/pkg/errors"
"github.com/urfave/cli"
)
var infoCommand = cli.Command{
Name: "info",
Usage: "get info about a container",
ArgsUsage: "CONTAINER",
Action: func(context *cli.Context) error {
var (
ctx, cancel = appContext(context)
id = context.Args().First()
)
defer cancel()
if id == "" {
return errors.New("container id must be provided")
}
client, err := newClient(context)
if err != nil {
return err
}
container, err := client.LoadContainer(ctx, id)
if err != nil {
return err
}
cjson, err := json.MarshalIndent(container, "", " ")
if err != nil {
return err
}
fmt.Println(string(cjson))
return nil
},
}