fix(postgresql): ignore errors on first run in check mode, support overriding internal postgresql container username, fix container image name creation

roles/postgresql/tasks/configure.yml

@@ -54,7 +54,13 @@
   vars:
     postgresql_login_host: >-2
       {{
-        (postgresql_config_unix_socket_directories | first)
+        (
+          (postgresql_deployment_method in ['docker'])
+          | ternary(
+            postgresql_unix_socket_path,
+            (postgresql_config_unix_socket_directories | first)
+          )
+        )
         if postgresql_config_connect_socket else 
         (postgresql_container_info.container.NetworkSettings.IPAddress)
       }}

roles/postgresql/tasks/deploy-docker.yml

@@ -51,12 +51,14 @@
     name: "{{ postgresql_systemd_tmpfile_socket_correction_unit_name }}.service"
     state: "{{ postgresql_container_state }}"
   when: ansible_facts['service_mgr'] == 'systemd'
+  ignore_errors: "{{ ansible_check_mode }}"
 
 - name: Ensure systemd unit {{ postgresql_systemd_tmpfile_socket_correction_unit_name }} is {{ postgresql_container_state }}
   ansible.builtin.systemd:
     name: "{{ postgresql_systemd_tmpfile_socket_correction_unit_name }}.service"
     enabled: "{{ postgresql_state == 'present' }}"
   when: ansible_facts['service_mgr'] == 'systemd'
+  ignore_errors: "{{ ansible_check_mode }}"
 
 - name: Lookup {{ postgresql_data_path }}/global
   ansible.builtin.stat: