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 3fdab7ef0e604ccf2a939a1f59d382a409e8be92..4d0ba64c3849f7f2d497d239c87ff7805b8678c1 100644 (file)
--- 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 7acb8022536f2c11c0d938576c55fd249a521794..5dfffda81796eabc8000d6278e6ebf07351ecb6c 100644 (file)
--- 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