Refactor ceph-ansible upgrade

ceph-ansible and python-tripleoclient have different "minimum" required
version of ansible in specification. This patch upgrades ceph-ansible as
prerequisite so all dependencies will be met. In fast-forward script
checks if ceph-ansible is installed.If yes, it will upgrade it to latest
versions in repositories.

Change-Id: I3eadfad34aa563084fd4cc68990cb247e734d508
Related-Bug: 1885637

tasks/common/undercloud_prerequisites.yaml

@@ -9,3 +9,14 @@
     name:
       - "{{ 'python-tripleoclient' if use_oooq|bool else 'python3-tripleoclient' }}"
     state: latest
+
+- name: get installed package fact
+  package_facts:
+    manager: "auto"
+
+- name: Update Ceph Ansible prior upgrade
+  package:
+    name:
+      - "ceph-ansible"
+    state: latest
+  when: "'ceph-ansible' in ansible_facts.packages"

tasks/upgrade/overcloud_upgrade_prepare.yml

@@ -1,12 +1,4 @@
 ---
-- name: Make sure ceph-ansible is installed if ceph is deployed
-  package:
-    name: ceph-ansible
-    state: latest
-  become: true
-  become_user: root
-  when: ceph_osd_enabled|bool
-
 - name: adjust role-data for upgrade
   include_tasks: ../common/adjust-roles-data.yaml
   when: custom_roles_used|bool

templates/fast-forward-upgrade/undercloud_upgrade.sh.j2

@@ -14,7 +14,7 @@ sudo tripleo-repos {{ cmd_args }} ceph
 sudo systemctl stop openstack-* neutron-* httpd
 sudo yum update -y instack-undercloud openstack-puppet-modules openstack-tripleo-common python-tripleoclient
 {% else %}
-sudo yum -y install ceph-ansible
+rpm -q ceph-ansible && yum -y upgrade ceph-ansible || yum install -y ceph-ansible
 sudo yum -y update {{ (current_release < 15) | ternary('python-tripleoclient', 'python3-tripleoclient') }}
 {% endif %}