Dockerfile

# Build stage
FROM node:22-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install all dependencies (including devDependencies for build)
RUN npm install && \
    npm cache clean --force

# Copy source files
COPY . .

# Build the application
RUN npm run build

# Production stage
FROM node:22-alpine

WORKDIR /app

# Install dumb-init for proper signal handling
RUN apk add --no-cache dumb-init 7zip libarchive-tools

# Create non-root user
RUN addgroup -g 1001 -S nodejs && \
    adduser -S nodejs -u 1001

# Copy package files
COPY package*.json ./

# Install only production dependencies
RUN npm install --omit=dev && \
    npm cache clean --force

# Copy built assets from builder stage
COPY --from=builder --chown=nodejs:nodejs /app/dist ./dist

# Copy only server-side files needed at runtime
COPY --chown=nodejs:nodejs server.js ./
COPY --chown=nodejs:nodejs serverConfig.js ./
COPY --chown=nodejs:nodejs model.cfg ./
COPY --chown=nodejs:nodejs services ./services

# Switch to non-root user
USER nodejs

# Expose port 8080 (Cloud Run requirement)
EXPOSE 8080

# Set production environment
ENV NODE_ENV=production

# Start the server with dumb-init
ENTRYPOINT ["dumb-init", "--"]
CMD ["node", "server.js"]