Dockerfile

# Stage 1: Build
FROM node:20-alpine AS builder

# Set working directory
WORKDIR /usr/src/app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci

# Copy source code
COPY . .

# Build the application
RUN npm run build

# Stage 2: Production
FROM node:20-alpine AS production

# Set working directory
WORKDIR /usr/src/app

# Copy package files
COPY package*.json ./

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

# Copy built artifacts from builder stage
COPY --from=builder /usr/src/app/dist ./dist
COPY --from=builder /usr/src/app/node_modules ./node_modules

# Expose the port the app runs on
EXPOSE 3000

# Set environment to production
ENV NODE_ENV=production

# Command to run the application
CMD ["node", "dist/main"]

# Stage 3: Development
FROM node:20-alpine AS development

# Set working directory
WORKDIR /usr/src/app

# Copy package files
COPY package*.json ./

# Install all dependencies (including dev)
RUN npm ci

# Copy source code
COPY . .

# Expose the port the app runs on
EXPOSE 3000

# Set environment to development
ENV NODE_ENV=development

# Use nodemon for development with hot reloading
CMD ["npm", "run", "start:dev"]