From: Ivo Jimenez <ivo.jimenez@gmail.com>
Date: Fri, 24 Jul 2015 20:15:56 +0000 (-0700)
Subject: Adds cgroups packages and net_cls kernel module to ubuntu systems
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=369631b1646f9fddc65a7a8b1996f4622138693d;p=ceph-cm-ansible.git

Adds cgroups packages and net_cls kernel module to ubuntu systems

This commit is part of the work for http://tracker.ceph.com/issues/12424
which enables the ceph task in ceph/ceph-qa-suite to create and place
osd/mon/mds in control groups.

For ubuntu, kernels for precise and up have CONFIG_CGROUP_* enabled, so
the only thing that it's required is to install cgroup-lite which is a
service that mounts the cgroups virtual FS. The cgroup-bin package will
also be used from the ceph task to manipulate (create/modify/delete)
control groups.

The net_cls subsystem is included as a module (cls_cgroup) and is not
enabled by cgroup-lite, i.e. it has to be explicitly loaded. so we add
it to /etc/modules
---

diff --git a/roles/testnode/templates/modules b/roles/testnode/templates/modules
index 3fdab7e..4d0ba64 100644
--- a/roles/testnode/templates/modules
+++ b/roles/testnode/templates/modules
@@ -8,3 +8,4 @@ loop
 lp
 rtc
 scsi_transport_iscsi
+cls_cgroup
diff --git a/roles/testnode/vars/ubuntu.yml b/roles/testnode/vars/ubuntu.yml
index 7acb802..5dfffda 100644
--- a/roles/testnode/vars/ubuntu.yml
+++ b/roles/testnode/vars/ubuntu.yml
@@ -103,6 +103,9 @@ common_packages:
   # nfs
   - nfs-common
   - nfs-kernel-server
+  # cgroups
+  - cgroup-lite
+  - cgroup-bin
 
 packages_to_upgrade:
   - apt