Dockerfile

# Dependencies stage
FROM node:20-slim AS deps

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    python3 \
    make \
    g++ \
    && rm -rf /var/lib/apt/lists/*

# Install corepack and pnpm
RUN corepack enable && corepack prepare pnpm@8.15.4 --activate

# Copy package files
COPY package.json pnpm-lock.yaml* .npmrc* ./

# Install dependencies
RUN pnpm install --frozen-lockfile

# Builder stage
FROM node:20-slim AS builder

WORKDIR /app

RUN corepack enable && corepack prepare pnpm@8.15.4 --activate

# Copy dependencies and source
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Build application
ENV NEXT_TELEMETRY_DISABLED=1
RUN pnpm build

# Production stage
FROM node:20-slim AS runner

WORKDIR /app

ENV NODE_ENV=production \
    NEXT_TELEMETRY_DISABLED=1

# Install wget for healthcheck
RUN apt-get update && apt-get install -y --no-install-recommends \
    wget \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN groupadd -r nodejs --gid=1001 && \
    useradd -r -g nodejs --uid=1001 nextjs

# Copy built application
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next ./.next
COPY --from=builder --chown=nextjs:nodejs /app/next.config.js ./
COPY --from=builder --chown=nextjs:nodejs /app/package.json ./
COPY --from=builder --chown=nextjs:nodejs /app/node_modules ./node_modules

USER nextjs

EXPOSE 3000

ENV PORT=3000

HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/ || exit 1

CMD ["node_modules/.bin/next", "start"]