Added env to dockerfile and docker-compose

Dockerfile

@@ -14,5 +14,6 @@ RUN npm run build
 
 # Stage 2: Package up with the webserver
 FROM nginx:alpine AS final
+ENV API_URL "https://localhost:5001"
 COPY --from=build /build/dist/frontend /usr/share/nginx/html
 CMD ["/bin/sh",  "-c",  "envsubst < /usr/share/nginx/html/assets/env.template.js > /usr/share/nginx/html/assets/env.js && exec nginx -g 'daemon off;'"]

docker-compose.yml

@@ -8,4 +8,6 @@ services:
     networks:
       - default
     ports:
-      - "8080:80"
+      - "8080:80"
+    environment:
+      API_URL: http://localhost:5001