containerd/cmd/ctr/commands/images/unmount.go
Sebastiaan van Stijn dd0542f7c1
cmd: don't alias context package, and use cliContext for cli.Context
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>
2024-06-20 02:15:13 +02:00

74 lines
2.1 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 images
import (
"errors"
"fmt"
"github.com/containerd/containerd/v2/cmd/ctr/commands"
"github.com/containerd/containerd/v2/core/leases"
"github.com/containerd/containerd/v2/core/mount"
"github.com/containerd/errdefs"
"github.com/urfave/cli/v2"
)
var unmountCommand = &cli.Command{
Name: "unmount",
Usage: "Unmount the image from the target",
ArgsUsage: "[flags] <target>",
Description: "Unmount the image rootfs from the specified target.",
Flags: append(append(commands.RegistryFlags, append(commands.SnapshotterFlags, commands.LabelFlag)...),
&cli.BoolFlag{
Name: "rm",
Usage: "Remove the snapshot after a successful unmount",
},
),
Action: func(cliContext *cli.Context) error {
var (
target = cliContext.Args().First()
)
if target == "" {
return errors.New("please provide a target path to unmount from")
}
client, ctx, cancel, err := commands.NewClient(cliContext)
if err != nil {
return err
}
defer cancel()
if err := mount.UnmountAll(target, 0); err != nil {
return err
}
if cliContext.Bool("rm") {
snapshotter := cliContext.String("snapshotter")
s := client.SnapshotService(snapshotter)
if err := client.LeasesService().Delete(ctx, leases.Lease{ID: target}); err != nil && !errdefs.IsNotFound(err) {
return fmt.Errorf("error deleting lease: %w", err)
}
if err := s.Remove(ctx, target); err != nil && !errdefs.IsNotFound(err) {
return fmt.Errorf("error removing snapshot: %w", err)
}
}
fmt.Fprintln(cliContext.App.Writer, target)
return nil
},
}