service: Add support for native sockets for http

roles/service/vars/main/proxy.yaml

@@ -1,4 +1,9 @@
 ---
+_service_native_socket: "{{ service_domains | length > 0 and service_container_http_port == 0 }}"
+
+_service_socket_path: >-
+  /run/{{ service_name ~ ('-socat' if not _service_native_socket else '' ) }}.sock
+
 _service_replacement_host_header:
   Host: "{{ service_name }}:{{ service_container_http_port }}"
 _service_proxy_headers: "{{ _service_replacement_host_header if not service_proxy_pass_host_header else {} }}"