Allowing for env ports in docker-compose file

docker/docker-compose.yml

-version: '2'
+version: '3.3'
 services:
     redis:
         image: 'redis:alpine'
@@ -38,7 +38,7 @@ services:
             - ./config/nginx/certs/server.crt:/etc/nginx/server.crt
             - ./config/nginx/certs/server.key:/etc/nginx/server.key
         ports:
-            - '80:80'
-            - '443:443'
+            - ${FRACTALIS_HTTP_PORT:-80}:80
+            - ${FRACTALIS_HTTPS_PORT:-443}:443
         depends_on:
             - app