forked from openshift/geard
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request openshift#56 from crosbymichael/nsinit-pause
Add pause and unpause commands to nsinit
- Loading branch information
Showing
2 changed files
with
51 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,49 @@ | ||
package main | ||
|
||
import ( | ||
"log" | ||
|
||
"github.com/codegangsta/cli" | ||
"github.com/docker/libcontainer/cgroups" | ||
"github.com/docker/libcontainer/cgroups/fs" | ||
"github.com/docker/libcontainer/cgroups/systemd" | ||
) | ||
|
||
var pauseCommand = cli.Command{ | ||
Name: "pause", | ||
Usage: "pause the container's processes", | ||
Action: pauseAction, | ||
} | ||
|
||
var unpauseCommand = cli.Command{ | ||
Name: "unpause", | ||
Usage: "unpause the container's processes", | ||
Action: unpauseAction, | ||
} | ||
|
||
func pauseAction(context *cli.Context) { | ||
if err := toggle(cgroups.Frozen); err != nil { | ||
log.Fatal(err) | ||
} | ||
} | ||
|
||
func unpauseAction(context *cli.Context) { | ||
if err := toggle(cgroups.Thawed); err != nil { | ||
log.Fatal(err) | ||
} | ||
} | ||
|
||
func toggle(state cgroups.FreezerState) error { | ||
container, err := loadContainer() | ||
if err != nil { | ||
return err | ||
} | ||
|
||
if systemd.UseSystemd() { | ||
err = systemd.Freeze(container.Cgroups, state) | ||
} else { | ||
err = fs.Freeze(container.Cgroups, state) | ||
} | ||
|
||
return err | ||
} |