traefik/vendor/github.com/opencontainers/runc/state.go
Emile Vauge aeb17182b4
Merge v1.2.1-master
Signed-off-by: Emile Vauge <emile@vauge.com>
2017-04-11 22:36:56 +02:00

60 lines
1.4 KiB
Go

// +build linux
package main
import (
"encoding/json"
"os"
"github.com/opencontainers/runc/libcontainer"
"github.com/opencontainers/runc/libcontainer/utils"
"github.com/urfave/cli"
)
var stateCommand = cli.Command{
Name: "state",
Usage: "output the state of a container",
ArgsUsage: `<container-id>
Where "<container-id>" is your name for the instance of the container.`,
Description: `The state command outputs current state information for the
instance of a container.`,
Action: func(context *cli.Context) error {
if err := checkArgs(context, 1, exactArgs); err != nil {
return err
}
container, err := getContainer(context)
if err != nil {
return err
}
containerStatus, err := container.Status()
if err != nil {
return err
}
state, err := container.State()
if err != nil {
return err
}
pid := state.BaseState.InitProcessPid
if containerStatus == libcontainer.Stopped {
pid = 0
}
bundle, annotations := utils.Annotations(state.Config.Labels)
cs := containerState{
Version: state.BaseState.Config.Version,
ID: state.BaseState.ID,
InitProcessPid: pid,
Status: containerStatus.String(),
Bundle: bundle,
Rootfs: state.BaseState.Config.Rootfs,
Created: state.BaseState.Created,
Annotations: annotations,
}
data, err := json.MarshalIndent(cs, "", " ")
if err != nil {
return err
}
os.Stdout.Write(data)
return nil
},
}