update ansible mysql dependencies

roles/database_init/tasks/mysql.yml

@@ -1,5 +1,17 @@
 ---
 
+- name: Make sure mariadb is present
+  become: true
+  yum:
+    name: mariadb
+    state: present
+
+- name: Make sure pymysql is present
+  become: true
+  pip:
+    name: pymysql
+    state: present
+
 - name: Create application DB user
   mysql_user:
     login_host: "{{ atl_db_host }}"
@@ -11,16 +23,6 @@
 
 - block:
 
-    - name: Update root privs for new user
-      postgresql_privs:
-        login_host: "{{ atl_db_host }}"
-        login_user: "{{ atl_db_root_user }}"
-        login_password: "{{ atl_db_root_password }}"
-        database: postgres
-        roles: "{{ atl_db_root_user }}"
-        objs: "{{ atl_jdbc_user }}"
-        type: group
-
 # RDS does not allow changing the collation on an existing DB, it only allows collation change on creation of db. If the db already exists, we need the “create new application database” task to be skipped, idempotence can not be relied upon as we cant be certain the collation of the existing db
     - name: Create new application database
       mysql_db:
@@ -31,8 +33,7 @@
         name: "{{ atl_jdbc_db_name }}"
         encoding: "{{ atl_jdbc_encoding }}"
         collation: "{{ atl_jdbc_collation }}"
-      register: db_created
-      when: "atl_jdbc_db_name not in (dbcluster_db_names.query_result | map(attribute='datname') )"
+      register: db_created 
 
   tags:
     - new_only