Add application file

Dockerfile

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+# ==== CONFIGURE =====
+# Use a Node 16 base image
+FROM node:16
+# Set the working directory to /code inside the container
+WORKDIR /code
+# Copy app files
+COPY . .
+# ==== BUILD =====
+# Install dependencies (npm ci makes sure the exact versions in the lockfile gets installed)
+RUN npm ci
+# Build the app
+RUN npm run build
+# ==== RUN =======
+# Set the env to "production"
+ENV NODE_ENV production
+# Expose the port on which the app will be running (3000 is the default that `serve` uses)
+EXPOSE 7860
+# Start the app
+CMD [ "node", "server.js" ]