Dockerfile

# syntax=docker/dockerfile:1

# Base image with Node.js LTS
FROM node:20-alpine AS base

# Install pnpm
RUN corepack enable && corepack prepare pnpm@latest --activate

# Set working directory
WORKDIR /app

# Dependencies stage
FROM base AS deps

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

# Install dependencies
RUN pnpm install --frozen-lockfile

# Build stage
FROM base AS builder

WORKDIR /app

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

# Disable telemetry and enable standalone output during build
ENV NEXT_TELEMETRY_DISABLED=1
ENV DOCKER_BUILD=true

# Build the application
RUN pnpm build

# Production stage
FROM base AS runner

WORKDIR /app

# Set production environment
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

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

# Copy built assets
COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

# Switch to non-root user
USER nextjs

# Expose port
EXPOSE 3000

# Set hostname
ENV HOSTNAME="0.0.0.0"

# Start the application
CMD ["node", "server.js"]