Dockerfile

# Use the official Node.js 20 Alpine image as a parent image for building
FROM node:20-alpine AS builder

# Set the working directory in the container
WORKDIR /usr/src/app

# Copy package.json and package-lock.json to the working directory
COPY package*.json ./

# Install dependencies
RUN npm install

# Copy the rest of the application code
COPY . .

# Build the TypeScript project
RUN npm run build

# Use a smaller image for the runtime
FROM node:20-alpine

# Set the working directory in the container
WORKDIR /usr/src/app

# Copy the built application from the builder stage
COPY --from=builder /usr/src/app/dist ./dist
COPY --from=builder /usr/src/app/package*.json ./

# Install only production dependencies
RUN npm install --only=production

# Expose the port the app runs on
EXPOSE 3001

# Command to run the application
CMD ["node", "dist/index.js"]