Updated Strapi - reverted to old solution. Adding config during the build isn't working

public/v2/apps/strapi.json

@@ -11,11 +11,7 @@
                     "$$cap_appname-mongo"
                 ],
                 "containerHttpPort": "1337",
-                "dockerfileLines": [
-                    "FROM strapi/strapi:$$cap_strapi_version",
-                    "RUN mkdir -p /srv/app/config/environments/production/",
-                    "RUN echo \"{\\\"proxy\\\":{\\\"enabled\\\":true,\\\"ssl\\\":false,\\\"host\\\":\\\"$$cap_appname.$$cap_root_domain\\\",\\\"port\\\":80}}\" > /srv/app/config/environments/production/server.json "
-                ],
+                "image": "strapi/strapi:$$cap_strapi_version",
                 "volumes": [
                     "$$cap_appname-data:/srv/app"
                 ],
@@ -51,7 +47,7 @@
     },
     "instructions": {
         "start": "API creation made simple, secure and fast. The most advanced open-source Content Management Framework to build powerful API with no effort. Read more here: https://strapi.io \n\nNOTE: Hardware requirements: \n2GB minimum RAM required\n1Ghz minimum CPU clock speed",
-        "end": "Strapi is deployed and available as $$cap_appname-core \n IMPORTANT!! It takes up to 2 minutes for Strapi to boot up. You will see a 502 Error until the startup is finished."
+        "end": "Strapi is deployed and available as $$cap_appname-core \n IMPORTANT!! It takes up to 2-5 minutes for Strapi to boot up. You will see a 502 Error until the startup is finished.\n\nIMPORTANT: You need to add a config file manually to support the correct domain name. See this issue for more details: https://github.com/strapi/strapi-docker/issues/173"
     },
     "variables": [{
             "id": "$$cap_strapi_version",