chore:

7_auth/7_1_express_js/Dockerfile

@@ -1,35 +1,34 @@
 # Step 1: Use an official Node.js image as the base image
-FROM node:16 AS build
-
-# Step 2: Set build-time arguments for CLIENT_ID and CLIENT_SECRET
-ARG CLIENT_ID
-ARG CLIENT_SECRET
+FROM node:18 AS build
 
 # Step 3: Set the working directory in the container
 WORKDIR /app
 
 # Step 4: Copy package.json and package-lock.json (if available)
 COPY package*.json ./
 
-# Step 5: Install the dependencies (both production and dev)
+# Step 5: Install dependencies (both production and dev)
 RUN npm install
 
 # Step 6: Copy the entire application source code into the container
 COPY . .
 
-# Step 7: Set environment variables using the injected ARG values
-ENV CLIENT_ID=${CLIENT_ID}
-ENV CLIENT_SECRET=${CLIENT_SECRET}
-
-# Step 8: Build the TypeScript code
+# Step 7: Build the TypeScript code
 RUN npm run build
 
-# Step 9: Use a smaller production image for runtime (optional)
-FROM node:16-slim
+# Step 8: Now use a smaller production image for runtime (optional)
+FROM node:18-slim
 
-# Step 10: Set the working directory in the container
+# Step 9: Set the working directory in the container
 WORKDIR /app
 
+# Step 10: Set environment variables for CLIENT_ID and CLIENT_SECRET for runtime
+# These will be passed during build and made available in the final image
+ARG CLIENT_ID
+ARG CLIENT_SECRET
+ENV CLIENT_ID=${CLIENT_ID}
+ENV CLIENT_SECRET=${CLIENT_SECRET}
+
 # Step 11: Copy the built files from the build stage
 COPY --from=build /app /app
 
@@ -40,4 +39,4 @@ RUN npm install --only=production
 EXPOSE 3000
 
 # Step 14: Start the application
-CMD ["npm", "start"]
+CMD ["npm", "start"]