dd0542f7c1
Unfortunately, this is a rather large diff, but perhaps worth a one-time "rip off the bandaid" for v2. This patch removes the use of "gocontext" as alias for stdLib's "context", and uses "cliContext" for uses of cli.context. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
73 lines
1.7 KiB
Go
73 lines
1.7 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package tasks
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import (
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"errors"
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"fmt"
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"os"
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"text/tabwriter"
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"github.com/containerd/containerd/v2/cmd/ctr/commands"
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"github.com/containerd/typeurl/v2"
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"github.com/urfave/cli/v2"
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)
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var psCommand = &cli.Command{
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Name: "ps",
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Usage: "List processes for container",
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ArgsUsage: "CONTAINER",
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Action: func(cliContext *cli.Context) error {
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id := cliContext.Args().First()
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if id == "" {
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return errors.New("container id must be provided")
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}
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client, ctx, cancel, err := commands.NewClient(cliContext)
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if err != nil {
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return err
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}
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defer cancel()
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container, err := client.LoadContainer(ctx, id)
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if err != nil {
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return err
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}
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task, err := container.Task(ctx, nil)
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if err != nil {
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return err
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}
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processes, err := task.Pids(ctx)
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if err != nil {
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return err
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}
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w := tabwriter.NewWriter(os.Stdout, 1, 8, 4, ' ', 0)
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fmt.Fprintln(w, "PID\tINFO")
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for _, ps := range processes {
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var info interface{} = "-"
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if ps.Info != nil {
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info, err = typeurl.UnmarshalAny(ps.Info)
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if err != nil {
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return err
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}
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}
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if _, err := fmt.Fprintf(w, "%d\t%+v\n", ps.Pid, info); err != nil {
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return err
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}
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}
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return w.Flush()
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},
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}
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