service: Better use podman secrets for database passwords

roles/service/vars/main.yaml

@@ -2,6 +2,9 @@
 _service_template_mounts: "{{ service_container_mounts | selectattr('type', '==', 'template') | list }}"
 _service_host_directory: "/srv/{{ service_name }}"
 
+_service_setup_database: "{{ service_database_type != 'none' }}"
+_service_database_name: "{{ service_name }}-{{ service_database_type }}"
+
 _service_container_secrets: >
   {{
     service_container_secrets
@@ -11,6 +14,7 @@ _service_container_secrets: >
         | map('community.general.dict_kv', 'name')
         )
       | map('combine')
+    + ([{'name': _service_database_name }] if _service_setup_database else [])
   }}
 
 _service_container_wants: "{{ service_wants + ([service_name + '-socat.socket'] if service_domains | length > 0 else []) }}"