progressively working deploy scenario

Dockerfile

@@ -1,5 +1,5 @@
 # ── Build stage ───────────────────────────────────────────────────────
-FROM node:20-alpine AS build
+FROM docker.io/library/node:22-alpine AS build
 WORKDIR /app
 COPY package*.json ./
 RUN npm ci
@@ -7,8 +7,11 @@ COPY . .
 RUN npx ng build --configuration production
 
 # ── Serve stage ────────────────────────────────────────────────────────
-FROM docker.io/library/nginx:1.30-perl
+FROM docker.io/library/nginx:alpine
 COPY --from=build /app/dist/radio-station/browser /usr/share/nginx/html
-COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY nginx.conf.template /etc/nginx/conf.d/nginx.conf.template
+COPY docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
+ENV API_UPSTREAM=http://api:8000
 EXPOSE 80
-CMD ["nginx", "-g", "daemon off;"]
+ENTRYPOINT ["/docker-entrypoint.sh"]