73 lines
1.7 KiB
Go
73 lines
1.7 KiB
Go
/*
|
|
Copyright The containerd Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package tasks
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"os"
|
|
"text/tabwriter"
|
|
|
|
"github.com/containerd/containerd/v2/cmd/ctr/commands"
|
|
"github.com/containerd/typeurl/v2"
|
|
"github.com/urfave/cli"
|
|
)
|
|
|
|
var psCommand = cli.Command{
|
|
Name: "ps",
|
|
Usage: "List processes for container",
|
|
ArgsUsage: "CONTAINER",
|
|
Action: func(context *cli.Context) error {
|
|
id := context.Args().First()
|
|
if id == "" {
|
|
return errors.New("container id must be provided")
|
|
}
|
|
client, ctx, cancel, err := commands.NewClient(context)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer cancel()
|
|
container, err := client.LoadContainer(ctx, id)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
task, err := container.Task(ctx, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
processes, err := task.Pids(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
w := tabwriter.NewWriter(os.Stdout, 1, 8, 4, ' ', 0)
|
|
fmt.Fprintln(w, "PID\tINFO")
|
|
for _, ps := range processes {
|
|
var info interface{} = "-"
|
|
if ps.Info != nil {
|
|
info, err = typeurl.UnmarshalAny(ps.Info)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if _, err := fmt.Fprintf(w, "%d\t%+v\n", ps.Pid, info); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return w.Flush()
|
|
},
|
|
}
|