Place Conmon and Container in separate CGroups

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

Closes: #507
Approved by: baude

1 files changed, 6 insertions, 10 deletions

diff --git a/libpod/oci.go b/libpod/oci.go
index 3b24f2c23..4dbf5526d 100644
--- a/libpod/oci.go
+++ b/libpod/oci.go
@@ -328,19 +328,15 @@ func (r *OCIRuntime) createOCIContainer(ctr *Container, cgroupParent string) (er
 			logrus.Warnf("Failed to add conmon to systemd sandbox cgroup: %v", err)
 		}
 	} else {
-		cgroupPath, err := ctr.CGroupPath()
+		cgroupPath := filepath.Join(ctr.config.CgroupParent, fmt.Sprintf("libpod-%s", ctr.ID()), "conmon")
+		control, err := cgroups.New(cgroups.V1, cgroups.StaticPath(cgroupPath), &spec.LinuxResources{})
 		if err != nil {
-			logrus.Errorf("Failed to generate CGroup path for conmon: %v", err)
+			logrus.Warnf("Failed to add conmon to cgroupfs sandbox cgroup: %v", err)
 		} else {
-			control, err := cgroups.New(cgroups.V1, cgroups.StaticPath(cgroupPath), &spec.LinuxResources{})
-			if err != nil {
+			// we need to remove this defer and delete the cgroup once conmon exits
+			// maybe need a conmon monitor?
+			if err := control.Add(cgroups.Process{Pid: cmd.Process.Pid}); err != nil {
 				logrus.Warnf("Failed to add conmon to cgroupfs sandbox cgroup: %v", err)
-			} else {
-				// we need to remove this defer and delete the cgroup once conmon exits
-				// maybe need a conmon monitor?
-				if err := control.Add(cgroups.Process{Pid: cmd.Process.Pid}); err != nil {
-					logrus.Warnf("Failed to add conmon to cgroupfs sandbox cgroup: %v", err)
-				}
 			}
 		}
 	}