Dockerfile

FROM node:20-alpine AS base

# Install dependencies only when needed
FROM base AS deps
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production

# Rebuild the source code only when needed
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Build application
RUN npm run build

# Production image
FROM base AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV PORT=4000

# Create non-root user
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 tatakai

# Copy built application
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json
COPY --from=builder /app/public ./public

USER tatakai

EXPOSE 4000

CMD ["node", "dist/src/server.js"]