allow ephemeral host port selection to container port 80

docker-compose.yml

@@ -28,7 +28,7 @@ services:
     restart: unless-stopped
     tty: true
     ports:
-      - "8000:80"
+      - "80" # Here port 80 in the container is mapped to any ephemeral port (random Docker chosen port) on the host.
     volumes:
       - ./server:/var/www
       - ./docker/nginx/conf.d/:/etc/nginx/conf.d/