Dockerfile: make a debugging image

Dockerfile

@@ -1,4 +1,7 @@
 # WARNING:
+#
+# For development and debugging only. Use Dockerfile.release for production.
+#
 # This Dockerfile uses contents of current folder which might contain
 # secrets, uncommitted changes or other sensitive information. DO NOT
 # publish the result image unless it was composed in a clean environment.
@@ -6,37 +9,23 @@
 ARG BUILDPLATFORM=amd64
 ARG NODE_IMAGE=node:alpine
 
-FROM --platform=$BUILDPLATFORM ${NODE_IMAGE} as nodebuild
+FROM --platform=$BUILDPLATFORM ${NODE_IMAGE}
 
 WORKDIR /usr/src/app/
 
 # Copy project files
 COPY . ./
 
-# Install build dependencies
+# Install dependencies
 RUN apk --no-cache add \
-    python build-base
+    python build-base mediainfo
 
 # Fetch dependencies from npm
-RUN npm ci --no-optional
+RUN npm ci --no-optional && npm cache clean --force
 
-# Build package
+# Build assets
 RUN cp config.cli.js config.js
-RUN npm pack
-
-# Now get the clean Node.js image
-FROM ${NODE_IMAGE} as flood
-
-# Copy package built
-RUN rm -rf /tmp/*
-COPY --from=nodebuild /usr/src/app/*.tgz /tmp/
-
-# Install package and then remove caches
-RUN npm i -g /tmp/*.tgz && rm -rf /tmp/* /root/*
-
-# Install runtime dependencies
-RUN apk --no-cache add \
-    mediainfo
+RUN npm run build-assets
 
 # Create "download" user
 RUN adduser -h /home/download -s /sbin/nologin --disabled-password download
@@ -44,8 +33,12 @@ RUN adduser -h /home/download -s /sbin/nologin --disabled-password download
 # Run as "download" user
 USER download
 
-# Expose port 3000
+# Expose port 3000 and 4200
 EXPOSE 3000
+EXPOSE 4200
 
-# Flood
-ENTRYPOINT ["flood", "--host=0.0.0.0"]
+# Flood server in development mode
+ENTRYPOINT ["npm", "--prefix=/usr/src/app/", "run", "start:development:server", "--", "--host=0.0.0.0"]
+
+# Then, to start a debugging session of frontend:
+# docker exec -it ${container_id} npm --prefix=/usr/src/app/ run start:development:client