Add HOST_PORT configuration for application port mapping in docker.env

Author: jravani

environment/docker.env

@@ -28,6 +28,10 @@ COUNTRY=germany
 # Note: These countries are available based on the TABULA and EPISCOPE project data. Therefore running pipeline on other countries is not supported.
 
 
+# Application port mapping (host port -> container 8080)
+# Change this if 8080 collides with another service
+HOST_PORT=5000
+
 # Database connection settings (Connect to host PostgreSQL)
 DB_HOST=host.docker.internal
 DB_PORT=5432