Merge pull request #101 from cloudnull/Issue99

Resolves Issue 99 which provides for lvm snapshots.

rpc_deployment/inventory/group_vars/all.yml

@@ -64,6 +64,13 @@ excluded_user_create:
   - rabbitmq
 
 
+## Kernel modules loaded on all hosts
+host_kernel_modules:
+  - scsi_dh
+  - dm_multipath
+  - dm_snapshot
+
+
 ## Base Packages
 apt_common_packages:
   - vlan
@@ -73,6 +80,9 @@ apt_common_packages:
   - git-core
   - rsyslog
   - lvm2
+  - dmeventd
+  - libkmod-dev
+  - libkmod2
   - libssl-dev
   - bridge-utils
   - cgroup-lite

rpc_deployment/inventory/group_vars/cinder_all.yml

@@ -89,4 +89,3 @@ container_packages:
   - libkmod-dev
   - libkmod2
   - dmeventd
-

rpc_deployment/roles/host_common/tasks/kernel_modules.yml

@@ -0,0 +1,27 @@
+---
+# Copyright 2014, Rackspace US, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- name: "Ensure kernel module(s)"
+  modprobe:
+    name: "{{ item }}"
+  with_items: host_kernel_modules
+  when: host_kernel_modules is defined
+
+- name: "Ensure kernel module(s) loaded at boot"
+  lineinfile:
+    dest: /etc/modules
+    line: "{{ item }}"
+  with_items: host_kernel_modules
+  when: host_kernel_modules is defined

rpc_deployment/roles/host_common/tasks/main.yml

@@ -16,3 +16,4 @@
 - include: sysstat.yml
 - include: updatehostsfile.yml
 - include: authorized_keys.yml
+- include: kernel_modules.yml

rpc_deployment/vars/config_vars/container_config_nova_compute.yml

@@ -50,6 +50,9 @@ kernel_modules:
   - nf_conntrack
   - x_tables
   - iscsi_tcp
+  - scsi_dh
+  - dm_multipath
+  - dm_snapshot
 
 sysctl_options:
   - { key: 'net.ipv4.conf.all.rp_filter', value: 0 }