update dev dockerfiles

06-building-container-images/api-node/Dockerfile.9

@@ -2,9 +2,6 @@
 # Use alpine for reduced image size
 FROM node:19.6-alpine AS base
 
-# Set NODE_ENV
-ENV NODE_ENV production
-
 # Specify working directory other than /
 WORKDIR /usr/src/app
 
@@ -12,21 +9,20 @@ WORKDIR /usr/src/app
 # dependencies (better layer caching)
 COPY package*.json ./
 
-# Development stage to include dev + production dependencies
-FROM base AS dev
+FROM base as dev
 
-# Install all dependencies (including development ones)
-# For the dev image
 RUN --mount=type=cache,target=/usr/src/app/.npm \
   npm set cache /usr/src/app/.npm && \
   npm install
 
 COPY . .
 
-CMD [ "npm", "run", "dev" ]
+CMD ["npm", "run", "dev"]
 
-# Production stage optimzed for deployment
-FROM base AS production
+FROM base as production
+
+# Set NODE_ENV
+ENV NODE_ENV production
 
 # Install only production dependencies
 # Use cache mount to speed up install of existing dependencies