fix build and deploy of sslproxy

dockerfiles/services/sslproxy/docker-compose.tools.yml

@@ -14,6 +14,8 @@ services:
       - certbot
       - certonly
       - --standalone
+    networks:
+      - prod_tasks:
 
   certificates:
     image: ${LETSENCRYPT_IMAGE}
@@ -33,3 +35,11 @@ services:
       - ${LETSENCRYPT_MOUNT}:/etc/letsencrypt
     ports:
       - 80:80
+
+networks:
+  prod_ui:
+    external:
+      name: prod_ui
+  prod_tasks:
+    external:
+      name: prod_tasks