Allow specifying erasure as the pool type

Change-Id: I581efd7c0d138cb78ab3afd755521f3fb375c0ee
Partially-Implements: blueprint ceph-improvements

ansible/group_vars/all.yml

@@ -151,6 +151,7 @@ enable_ironic: "no"
 
 ironic_keystone_user: "ironic"
 
+
 ####################
 # RabbitMQ options
 ####################
@@ -167,3 +168,11 @@ haproxy_user: "openstack"
 # Cinder - Block Storage options
 #################################
 cinder_volume_driver: "{{ 'ceph' if enable_ceph | bool else 'lvm' }}"
+
+
+###################
+# Ceph options
+###################
+# A requirement for using the erasure-coded pools is you must setup a cache tier
+# Valid options are [ erasure, replicated ]
+ceph_pool_type: "replicated"

ansible/roles/cinder/tasks/ceph.yml

@@ -19,7 +19,7 @@
 
 # TODO(SamYaple): Improve failed_when and changed_when tests
 - name: Creating ceph pool for cinder
-  command: docker exec ceph_mon ceph osd pool create volumes 128
+  command: docker exec ceph_mon ceph osd pool create volumes 128 {{ ceph_pool_type }}
   delegate_to: "{{ groups['ceph-mon'][0] }}"
   changed_when: False
   failed_when: False
@@ -27,7 +27,7 @@
 
 # TODO(SamYaple): Improve failed_when and changed_when tests
 - name: Creating ceph pool for cinder-backup
-  command: docker exec ceph_mon ceph osd pool create backups 128
+  command: docker exec ceph_mon ceph osd pool create backups 128 {{ ceph_pool_type }}
   delegate_to: "{{ groups['ceph-mon'][0] }}"
   changed_when: False
   failed_when: False

ansible/roles/glance/tasks/ceph.yml

@@ -13,7 +13,7 @@
 
 # TODO(SamYaple): Improve failed_when and changed_when tests
 - name: Creating ceph pool for glance
-  command: docker exec ceph_mon ceph osd pool create images 128
+  command: docker exec ceph_mon ceph osd pool create images 128 {{ ceph_pool_type }}
   delegate_to: "{{ groups['ceph-mon'][0] }}"
   changed_when: False
   failed_when: False

ansible/roles/nova/tasks/ceph.yml

@@ -19,7 +19,7 @@
 
 # TODO(SamYaple): Improve failed_when and changed_when tests
 - name: Creating ceph pool for vms
-  command: docker exec ceph_mon ceph osd pool create vms 128
+  command: docker exec ceph_mon ceph osd pool create vms 128 {{ ceph_pool_type }}
   delegate_to: "{{ groups['ceph-mon'][0] }}"
   changed_when: False
   failed_when: False

etc/kolla/globals.yml

@@ -84,3 +84,11 @@ neutron_external_interface: "eth1"
 # OpenStack services can be enabled or disabled with these options
 #enable_cinder: "yes"
 #enable_heat: "no"
+
+
+###################
+# Ceph options
+###################
+# A requirement for using the erasure-coded pools is you must setup a cache tier
+# Valid options are [ erasure, replicated ]
+# ceph_pool_type: "replicated"