Dockerfile

# Multi-stage build for Next.js application
FROM node:18-alpine AS base

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Copy package files
COPY package.json package-lock.json* ./
RUN npm ci --legacy-peer-deps

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

# Set environment variables for build
ENV NEXT_TELEMETRY_DISABLED 1
ENV NODE_ENV production

# Build Next.js
RUN npm run build:next

# Production image, copy all the files and run next
FROM base AS runner
WORKDIR /app

ENV NODE_ENV production
ENV NEXT_TELEMETRY_DISABLED 1

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy necessary files
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static
COPY --from=builder /app/package.json ./package.json
COPY --from=builder /app/server.ts ./server.ts
COPY --from=builder /app/lib ./lib
COPY --from=builder /app/types ./types
COPY --from=builder /app/tsconfig.json ./tsconfig.json

# Install production dependencies
RUN npm ci --only=production --legacy-peer-deps && npm cache clean --force

USER nextjs

EXPOSE 3000

ENV PORT 3000
ENV HOSTNAME "0.0.0.0"

# Start the custom server
CMD ["node", "server.ts"]