feat(Dockerfile): Add multi-stage build for production deployment

- Added a new stage "deps" to install production dependencies only
- Added a new stage "builder" to build the application
- Copied necessary files from the "builder" stage to the final image
- Exposed port 5000 for the application
- Updated CMD command to run the application

This commit introduces a multi-stage build process in the Dockerfile, which separates dependency installation and application building. This improves efficiency and reduces the size of the final Docker image.

Dockerfile

@@ -1,43 +1,20 @@
-# FROM node:lts-alpine
-
-# LABEL name="Docusaurus on docker latest-stable" \
-#       maintainer="VolvoxLLC <[email protected]>" \
-#       version="1.0.0" \
-#       release="latest" \
-#       url="https://github.com/VolvoxLLC/Volvox.Apollo.Docs" \
-#       summary="Volvox.Apollo Docs Docker \
-#           on Node 20.x, lts-alpine" \
-#       description="Volvox.Apollo Docs \
-#           on Node 20.x, lts-alpine" 
-
-# # run as our node user from base image
-# # we delete the dockerfiles we don't need
-# # this leaves us with a default v1 docusarus install
-# # we can mount our own into the container
-# USER node
-# RUN mkdir ~/npm-global \
-#     && npm config set prefix '~/npm-global' \
-#     && echo 'export PATH=~/npm-global/bin:$PATH' > ~/.profile \
-#     && mkdir -p /home/node/docs \
-#     && cd /home/node/docs \
-#     && npm install --global docusaurus-init \
-#     && sh -l -c docusaurus-init
-
-# EXPOSE 5001/tcp
-# USER node
-# WORKDIR /home/node/docs
-
-# CMD ["sh", "-l", "-c", "npm run serve"]
-
-## Base ########################################################################
 # Use a larger node image to do the build for native deps (e.g., gcc, python)
 FROM node:lts-alpine AS deps
 
+WORKDIR /opt/app
+# Copy package.json and package-lock.json to the working directory
+COPY package.json package-lock.json ./
+# Install production dependencies only
+RUN npm ci --only=production
+
 # Stage 2: Build the application
 FROM node:lts-alpine AS builder
 
 WORKDIR /opt/app
 # Copy all files from the current directory to the working directory in the container
+# Copy node_modules from the "deps" stage
+COPY package.json package-lock.json ./
+COPY --from=deps /opt/app/node_modules ./node_modules
 COPY . .
 # Build the application
 RUN npm run build
@@ -50,5 +27,6 @@ WORKDIR /opt/app
 ENV NODE_ENV=production
 # Copy necessary files from the "builder" stage
 EXPOSE 5000
+COPY --from=builder /opt/app/build ./build
 # Define the command to run the application
-CMD ["sh", "-l", "-c", "npm run serve"]
+CMD ["sh", "-l", "-c", "npm run serve"]