feat(postgresql): add ansible role for postgresql deployment

roles/postgresql/tasks/configure.yml

@@ -50,6 +50,7 @@
       loop_control:
         loop_var: result
         label: "{{ result.option.key }}"
+  when: postgresql_state == 'present'
   vars:
     postgresql_login_host: >-2
       {{

roles/postgresql/tasks/main.yml

@@ -33,6 +33,7 @@
   loop:
     - name: "{{ postgresql_config_path }}"
     - name: "{{ postgresql_data_path }}"
+      mode: "0700"
   loop_control:
     loop_var: path
     label: "{{ path.name }}"

roles/postgresql/tasks/prepare.yml

@@ -22,6 +22,7 @@
       insert_after: "# Ansible managed"
       line: "{{ postgresql_admin_pg_ident_conf }}"
   when: postgresql_state == 'present'
+  notify: postgresql_restart
 
 - name: Configure permissions for postgresql admin role
   community.postgresql.postgresql_pg_hba:
@@ -31,3 +32,4 @@
     method: "{{ postgresql_admin_role_method }}"
     options: "{{ postgresql_admin_pg_hba_conf_options }}"
   when: postgresql_state == 'present'
+  notify: postgresql_restart