87 lines
2.0 KiB
Go
87 lines
2.0 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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"github.com/containerd/console"
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"github.com/containerd/containerd/cio"
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"github.com/containerd/containerd/cmd/ctr/commands"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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var attachCommand = cli.Command{
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Name: "attach",
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Usage: "attach to the IO of a running container",
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ArgsUsage: "CONTAINER",
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Action: func(context *cli.Context) error {
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client, ctx, cancel, err := commands.NewClient(context)
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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, context.Args().First())
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if err != nil {
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return err
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}
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spec, err := container.Spec(ctx)
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if err != nil {
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return err
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}
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var (
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con console.Console
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tty = spec.Process.Terminal
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)
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if tty {
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con = console.Current()
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defer con.Reset()
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if err := con.SetRaw(); err != nil {
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return err
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}
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}
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task, err := container.Task(ctx, cio.NewAttach(cio.WithStdio))
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if err != nil {
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return err
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}
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defer task.Delete(ctx)
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statusC, err := task.Wait(ctx)
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if err != nil {
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return err
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}
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if tty {
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if err := HandleConsoleResize(ctx, task, con); err != nil {
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logrus.WithError(err).Error("console resize")
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}
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} else {
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sigc := commands.ForwardAllSignals(ctx, task)
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defer commands.StopCatch(sigc)
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}
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ec := <-statusC
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code, _, err := ec.Result()
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if err != nil {
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return err
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}
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if code != 0 {
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return cli.NewExitError("", int(code))
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}
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return nil
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},
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}
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