mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
I Hsin Cheng
83f9f18776
Originally, some of the commands' usage display didn't achieved to show newline, while some of them does, which are more user-friendly, and won't confuse the message if there're more which should be in the nextline. Fix this issue by returning usage string with a newline. Signed-off-by: I Hsin Cheng <richard120310@gmail.com>
70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
// Copyright 2018 The gVisor 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 cmd
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/google/subcommands"
|
|
"gvisor.dev/gvisor/runsc/cmd/util"
|
|
"gvisor.dev/gvisor/runsc/config"
|
|
"gvisor.dev/gvisor/runsc/container"
|
|
"gvisor.dev/gvisor/runsc/flag"
|
|
)
|
|
|
|
// Pause implements subcommands.Command for the "pause" command.
|
|
type Pause struct{}
|
|
|
|
// Name implements subcommands.Command.Name.
|
|
func (*Pause) Name() string {
|
|
return "pause"
|
|
}
|
|
|
|
// Synopsis implements subcommands.Command.Synopsis.
|
|
func (*Pause) Synopsis() string {
|
|
return "pause suspends all processes in a container"
|
|
}
|
|
|
|
// Usage implements subcommands.Command.Usage.
|
|
func (*Pause) Usage() string {
|
|
return "pause <container id> - pause process in instance of container.\n"
|
|
}
|
|
|
|
// SetFlags implements subcommands.Command.SetFlags.
|
|
func (*Pause) SetFlags(*flag.FlagSet) {
|
|
}
|
|
|
|
// Execute implements subcommands.Command.Execute.
|
|
func (*Pause) Execute(_ context.Context, f *flag.FlagSet, args ...any) subcommands.ExitStatus {
|
|
if f.NArg() != 1 {
|
|
f.Usage()
|
|
return subcommands.ExitUsageError
|
|
}
|
|
|
|
id := f.Arg(0)
|
|
conf := args[0].(*config.Config)
|
|
|
|
cont, err := container.Load(conf.RootDir, container.FullID{ContainerID: id}, container.LoadOpts{})
|
|
if err != nil {
|
|
util.Fatalf("loading container: %v", err)
|
|
}
|
|
|
|
if err := cont.Pause(); err != nil {
|
|
util.Fatalf("pause failed: %v", err)
|
|
}
|
|
|
|
return subcommands.ExitSuccess
|
|
}
|