containerd/cmd/ctr/containers.go
Michael Crosby 00288bcb58 Update ctr containers and tasks command
This moves container and tasks commands under the containers and tasks
top level commands.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-08-07 14:45:21 -04:00

78 lines
1.6 KiB
Go

package main
import (
"fmt"
"os"
"strings"
"text/tabwriter"
"github.com/urfave/cli"
)
var containersCommand = cli.Command{
Name: "containers",
Usage: "manage containers (metadata)",
Aliases: []string{"c"},
Flags: []cli.Flag{
cli.BoolFlag{
Name: "quiet, q",
Usage: "print only the container id",
},
},
Subcommands: []cli.Command{
containersDeleteCommand,
containersSetLabelsCommand,
containerInfoCommand,
},
ArgsUsage: "[filter, ...]",
Action: func(context *cli.Context) error {
var (
filters = context.Args()
quiet = context.Bool("quiet")
ctx, cancel = appContext(context)
)
defer cancel()
client, err := newClient(context)
if err != nil {
return err
}
containers, err := client.Containers(ctx, filters...)
if err != nil {
return err
}
if quiet {
for _, c := range containers {
fmt.Printf("%s\n", c.ID())
}
return nil
}
w := tabwriter.NewWriter(os.Stdout, 4, 8, 4, ' ', 0)
fmt.Fprintln(w, "CONTAINER\tIMAGE\tRUNTIME\tLABELS\t")
for _, c := range containers {
var labelStrings []string
for k, v := range c.Info().Labels {
labelStrings = append(labelStrings, strings.Join([]string{k, v}, "="))
}
labels := strings.Join(labelStrings, ",")
if labels == "" {
labels = "-"
}
imageName := c.Info().Image
if imageName == "" {
imageName = "-"
}
record := c.Info()
if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%v\t\n",
c.ID(),
imageName,
record.Runtime.Name,
labels,
); err != nil {
return err
}
}
return w.Flush()
},
}