mirror of
https://github.com/hanzoai/visor.git
synced 2026-09-24 17:04:14 +00:00
I Hsin Cheng
04bfee4427
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 <[email protected]>
89 lines
2.2 KiB
Go
89 lines
2.2 KiB
Go
// Copyright 2022 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 trace
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
|
|
"github.com/google/subcommands"
|
|
"gvisor.dev/gvisor/pkg/log"
|
|
"gvisor.dev/gvisor/runsc/cmd/util"
|
|
"gvisor.dev/gvisor/runsc/config"
|
|
"gvisor.dev/gvisor/runsc/container"
|
|
"gvisor.dev/gvisor/runsc/flag"
|
|
)
|
|
|
|
// procfs implements subcommands.Command for the "procfs" command.
|
|
type procfs struct {
|
|
}
|
|
|
|
// Name implements subcommands.Command.
|
|
func (*procfs) Name() string {
|
|
return "procfs"
|
|
}
|
|
|
|
// Synopsis implements subcommands.Command.
|
|
func (*procfs) Synopsis() string {
|
|
return "dump procfs state for sandbox"
|
|
}
|
|
|
|
// Usage implements subcommands.Command.
|
|
func (*procfs) Usage() string {
|
|
return "procfs <sandbox id> - get procfs dump for a trace session\n"
|
|
}
|
|
|
|
// SetFlags implements subcommands.Command.
|
|
func (*procfs) SetFlags(*flag.FlagSet) {}
|
|
|
|
// Execute implements subcommands.Command.
|
|
func (*procfs) 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)
|
|
|
|
opts := container.LoadOpts{
|
|
SkipCheck: true,
|
|
RootContainer: true,
|
|
}
|
|
c, err := container.Load(conf.RootDir, container.FullID{ContainerID: id}, opts)
|
|
if err != nil {
|
|
util.Fatalf("loading sandbox: %v", err)
|
|
}
|
|
|
|
dump, err := c.Sandbox.ProcfsDump()
|
|
if err != nil {
|
|
util.Fatalf("procfs dump: %v", err)
|
|
}
|
|
|
|
fmt.Println("PROCFS DUMP")
|
|
for _, procDump := range dump {
|
|
out, err := json.Marshal(procDump)
|
|
if err != nil {
|
|
log.Warningf("json.Marshal failed to marshal %+v: %v", procDump, err)
|
|
continue
|
|
}
|
|
|
|
fmt.Println("")
|
|
fmt.Println(string(out))
|
|
}
|
|
return subcommands.ExitSuccess
|
|
}
|