Merge "Properly detect RBD in use on Cinder backends" into stable/ocata

playbooks/common-playbooks/cinder.yml

@@ -22,6 +22,18 @@
   tags:
     - cinder
   pre_tasks:
+    # Switch to glance api v2 if cinder uses RBD backends
+    - name: Set cinder RBD inuse fact
+      set_fact:
+        cinder_backends_rbd_inuse: "{{ True in groups['cinder_volume'] | map('extract', hostvars, 'cinder_backend_rbd_inuse') }}"
+      delegate_to: localhost
+      delegate_facts: True
+      when:
+        - "'cinder_all' in group_names"
+        - "inventory_hostname == ((groups['cinder_all'] | intersect(ansible_play_hosts)) | list)[0]"
+        - "hostvars['localhost']['cinder_backends_rbd_inuse'] is not defined"
+      tags:
+        - always
 
     # In order to ensure that any container, software or
     # config file changes which causes a container/service

playbooks/common-playbooks/nova.yml

@@ -24,6 +24,20 @@
   tags:
     - nova
   pre_tasks:
+    # Enable execution of ceph_client on the nova compute hosts if cinder RBD
+    # backends are used. This is necessary to ensure that volume-backed Nova
+    # instances can function when RBD is the volume backend.
+    - name: Set cinder RBD inuse fact
+      set_fact:
+        nova_cinder_rbd_inuse: "{{ True in groups['cinder_volume'] | map('extract', hostvars, 'cinder_backend_rbd_inuse') }}"
+      delegate_to: localhost
+      delegate_facts: True
+      when:
+        - "'nova_compute' in group_names"
+        - "inventory_hostname == ((groups['nova_compute'] | intersect(ansible_play_hosts)) | list)[0]"
+        - "hostvars['localhost']['nova_cinder_rbd_inuse'] is not defined"
+      tags:
+        - always
 
     # In order to ensure that any container, software or
     # config file changes which causes a container/service
@@ -122,7 +136,6 @@
       nova_spicehtml5_git_repo: "{{ openstack_repo_git_url }}/spice-html5"
       nova_spicehtml5_git_install_branch: "{{ spicehtml5_git_install_branch }}"
       nova_management_address: "{{ management_address }}"
-      nova_cinder_rbd_inuse: "{{ hostvars['localhost']['cinder_backends_rbd_inuse'] }}"
 
     - role: "openstack_openrc"
       tags:

playbooks/inventory/host_vars/localhost.yml

@@ -14,7 +14,3 @@
 # limitations under the License.
 
 ansible_python_interpreter: /usr/bin/python
-
-# cinder_backends_rbd_inuse: true if at least 1 cinder_backend on any
-# cinder_volume host uses Ceph RBD
-cinder_backends_rbd_inuse: "{{ True in groups['cinder_volume'] | map('extract', hostvars, 'cinder_backend_rbd_inuse') }}"