nginx: bake config into custom image (no single-file bind mount)

docker-compose.yml

@@ -2,14 +2,14 @@ name: ${STACK_NAME:-clupilot}
 
 services:
   nginx:
-    image: nginx:1.27-alpine
+    build: ./docker/nginx
+    image: ${STACK_NAME:-clupilot}/nginx:latest
     container_name: ${STACK_NAME:-clupilot}-nginx
     restart: unless-stopped
     ports:
       - "${HTTP_PORT:-80}:80"
     volumes:
       - ./app:/var/www/html
-      - ./docker/nginx/default.conf:/etc/nginx/conf.d/default.conf:ro
     extra_hosts:
       - "host.docker.internal:host-gateway"
     depends_on:

docker/nginx/Dockerfile

@@ -0,0 +1,2 @@
+FROM nginx:1.27-alpine
+COPY default.conf /etc/nginx/conf.d/default.conf