library/roles/postgresql: Various fixes for some complex cases.

postgresql/tasks/main.yml

@@ -28,7 +28,6 @@
 - include: postgresql-backup.yml
   when:
     - psql_postgresql_install
-    - psql_db_data is defined
 - include: pgpool-ii.yml
   when: psql_pgpool_service_install
 - include: postgresql-letsencrypt-acmetool.yml

postgresql/tasks/postgresql-config.yml

@@ -5,12 +5,16 @@
   tags: [ 'postgresql', 'postgres', 'pg_conf' ]
 
 - name: Set the postgresql data dir if it is different from the default
+  become: True
+  become_user: postgres
   action: configfile path={{ psql_conf_dir }}/postgresql.conf key=data_directory value="'{{ psql_data_dir }}'"
   notify: Restart postgresql
   when: psql_use_alternate_data_dir
   tags: [ 'postgresql', 'postgres', 'pg_conf' ]
 
 - name: Set some postgresql configuration parameters
+  become: True
+  become_user: postgres
   action: configfile path={{ psql_conf_dir }}/postgresql.conf key={{ item.name }} value="{{ item.value }}"
   with_items: '{{ psql_conf_parameters }}'
   when: item.set == 'True'

postgresql/tasks/postgresql-ssl-config.yml

@@ -1,6 +1,8 @@
 ---
 - block:
     - name: Setup ssl in the postgresql configuration
+      become: True
+      become_user: postgres
       action: configfile path=/etc/postgresql/{{ psql_version }}/main/postgresql.conf key={{ item.name }} value="'{{ item.value }}'"
       with_items: '{{ psql_conf_ssl_parameters }}'
       notify: Restart postgresql