🔧 Added the ENV var to the Dockerfile

Dockerfile

@@ -1,6 +1,8 @@
 FROM node:12.21.0
 LABEL maintainer="Rishi Ghan <rishi.ghan@gmail.com>"
 
+ENV UNDERLYING_HOST ghost
+
 RUN mkdir -p /usr/src/threetwo
 WORKDIR /usr/src/threetwo
 

docker-compose.yml

@@ -7,8 +7,6 @@ services:
     image: frishi/threetwo
     container_name: threetwo-ui
     restart: unless-stopped
-    environment:
-      UNDERLYING_HOST: ghost
     volumes:
       - $COMICS_DIRECTORY:/comics
       - $USERDATA_DIRECTORY:/userdata