132485adb0
Followed the Migration Guide at https://cli.urfave.org/migrate-v1-to-v2/ The major changes not pointed out in the migration guide are: - context.Args() no longer produces a []slice, so context.Args().Slice() in substitued - All cli.Global***** are deprecated (the migration guide is somewhat unclear on this) Signed-off-by: Derek Nola <derek.nola@suse.com> Vendor in urfave cli/v2 Signed-off-by: Derek Nola <derek.nola@suse.com> Fix NewStringSlice calls Signed-off-by: Derek Nola <derek.nola@suse.com>
103 lines
2.4 KiB
Go
103 lines
2.4 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 containers
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import (
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"errors"
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"fmt"
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containerd "github.com/containerd/containerd/v2/client"
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"github.com/containerd/containerd/v2/cmd/ctr/commands"
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"github.com/containerd/errdefs"
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"github.com/urfave/cli/v2"
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)
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var checkpointCommand = &cli.Command{
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Name: "checkpoint",
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Usage: "Checkpoint a container",
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ArgsUsage: "CONTAINER REF",
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Flags: []cli.Flag{
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&cli.BoolFlag{
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Name: "rw",
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Usage: "Include the rw layer in the checkpoint",
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},
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&cli.BoolFlag{
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Name: "image",
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Usage: "Include the image in the checkpoint",
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},
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&cli.BoolFlag{
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Name: "task",
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Usage: "Checkpoint container task",
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},
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},
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Action: func(context *cli.Context) error {
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id := context.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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ref := context.Args().Get(1)
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if ref == "" {
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return errors.New("ref must be provided")
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}
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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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opts := []containerd.CheckpointOpts{
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containerd.WithCheckpointRuntime,
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}
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if context.Bool("image") {
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opts = append(opts, containerd.WithCheckpointImage)
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}
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if context.Bool("rw") {
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opts = append(opts, containerd.WithCheckpointRW)
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}
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if context.Bool("task") {
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opts = append(opts, containerd.WithCheckpointTask)
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}
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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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if !errdefs.IsNotFound(err) {
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return err
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}
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}
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// pause if running
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if task != nil {
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if err := task.Pause(ctx); err != nil {
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return err
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}
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defer func() {
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if err := task.Resume(ctx); err != nil {
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fmt.Println(fmt.Errorf("error resuming task: %w", err))
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}
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}()
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}
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if _, err := container.Checkpoint(ctx, ref, opts...); err != nil {
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return err
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}
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return nil
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},
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}
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