upload nest dockerfile snippet

nestjs.Dockerfile

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+###############################
+# BUILD FOR LOCAL DEVELOPMENT #
+###############################
+
+FROM node:18-alpine As development
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Copy application dependency manifests to the container image.
+# A wildcard is used to ensure copying both package.json AND package-lock.json (when available).
+# Copying this first prevents re-running npm install on every code change.
+COPY --chown=node:node package*.json ./
+
+# Install app dependencies using the `npm ci` command instead of `npm install`
+RUN npm ci
+
+# Bundle app source
+COPY --chown=node:node . .
+
+# Use the node user from the image (instead of the root user)
+USER node
+
+########################
+# BUILD FOR PRODUCTION #
+########################
+
+FROM node:18-alpine As build
+
+WORKDIR /usr/src/app
+
+COPY --chown=node:node package*.json ./
+
+# In the previous development stage we ran `npm ci` which installed all dependencies, so we can copy over the node_modules directory from the development image
+COPY --chown=node:node --from=development /usr/src/app/node_modules ./node_modules
+
+COPY --chown=node:node . .
+
+# Run the build command which creates the production bundle
+RUN npm run build
+
+# Set NODE_ENV environment variable
+ENV NODE_ENV production
+
+# Passing in --omit=dev ensures that only the production dependencies are installed.
+RUN npm ci --omit=dev && npm cache clean --force
+
+USER node
+
+###################
+# PRODUCTION
+###################
+
+FROM node:18-alpine As production
+
+# Copy the bundled code from the build stage to the production image
+COPY --chown=node:node --from=build /usr/src/app/node_modules ./node_modules
+COPY --chown=node:node --from=build /usr/src/app/dist ./dist
+
+# Start the server using the production build
+CMD [ "node", "dist/main.js" ]