Normalized run_once_, made openresty handlers without when aviable and forced flush in run_once when blocks to avoid handlers with when conditions

roles/svc-db-postgres/tasks/main.yml

@@ -1,36 +1,30 @@
-- name: Create Docker network for PostgreSQL
-  docker_network:
-    name: "{{ postgres_network_name }}"
-    state: present
-    ipam_config:
-      - subnet: "{{ postgres_subnet }}"
-  when: run_once_svc_db_postgres is not defined
+- block:
+  - name: Create Docker network for PostgreSQL
+    docker_network:
+      name: "{{ postgres_network_name }}"
+      state: present
+      ipam_config:
+        - subnet: "{{ postgres_subnet }}"
 
-- name: "include docker-compose role"
-  include_role: 
-    name: docker-compose
-  when: run_once_svc_db_postgres is not defined
+  - name: "include docker-compose role"
+    include_role: 
+      name: docker-compose
 
-- name: Wait for Postgres inside the container
-  shell: "docker exec {{ postgres_name }} pg_isready -U postgres"
-  register: pg_ready
-  until: pg_ready.rc == 0
-  retries: 30
-  delay: 5
-  when:
-    - run_once_svc_db_postgres is not defined
+  - name: Wait for Postgres inside the container
+    shell: "docker exec {{ postgres_name }} pg_isready -U postgres"
+    register: pg_ready
+    until: pg_ready.rc == 0
+    retries: 30
+    delay: 5
 
-- name: install python-psycopg2
-  pacman: 
-    name: python-psycopg2
-    state: present
+  - name: install python-psycopg2
+    pacman: 
+      name: python-psycopg2
+      state: present
+      
+  - include_tasks: utils/run_once.yml
   when: run_once_svc_db_postgres is not defined
 
 - name: "Initialize database for '{{ database_name }}'"
   include_tasks: init.yml
-  when: "{{ postgres_init }}"
-
-- name: Run the docker_postgres tasks once
-  set_fact:
-    run_once_svc_db_postgres: true
-  when: run_once_svc_db_postgres is not defined
+  when: "{{ postgres_init }}"