dockerfile

# Development Stage
FROM node:18-alpine AS development

WORKDIR /usr/src/app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=development

# Copy source code
COPY . .

# Expose port
EXPOSE 3000

# Development command
CMD ["npm", "run", "dev"]

# Production Stage
FROM node:18-alpine AS builder

WORKDIR /usr/src/app

COPY package*.json ./
RUN npm ci --only=production

# Production Stage
FROM node:18-alpine AS production

WORKDIR /usr/src/app

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

# Copy from builder
COPY --from=builder --chown=nodejs:nodejs /usr/src/app/node_modules ./node_modules
COPY --chown=nodejs:nodejs . .

USER nodejs

EXPOSE 3000

CMD ["node", "src/app.js"]