Switching over to using unix sockets for ICP

roles/postgresql/templates/postgresql.conf.j2

@@ -6,6 +6,10 @@
 listen_addresses = '{{ postgresql_listen_addresses }}'
 port = {{ postgresql_port }}
 
+# Unix socket configuration
+unix_socket_directories = '{{ postgresql_unix_socket_directories | default("/run/postgresql") }}'
+unix_socket_permissions = {{ postgresql_unix_socket_permissions | default("0777") }}
+
 # Basic Performance (only override if needed)
 max_connections = {{ postgresql_max_connections }}
 shared_buffers = {{ postgresql_shared_buffers }}