backend-service/Dockerfile

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

# Install pnpm globally
RUN corepack enable \
  && npm config set registry https://registry.npmmirror.com \
  && corepack prepare pnpm@latest --activate
# Set the working directory inside the container
WORKDIR /usr/src/app

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

# Install all dependencies (including dev dependencies)
RUN pnpm install

# Copy the rest of the application files
COPY . .

# Build the NestJS application
RUN pnpm run build

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

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

# Copy only the build output from the build stage
COPY --from=builder /usr/src/app/dist ./dist

# Expose the application port
EXPOSE 3000

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