Dockerfile

# Install dependencies only when needed
FROM node:16-alpine AS deps
# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Copy and install dependencies
COPY package.json package-lock.json* ./
RUN npm i


# Rebuild the source code only when needed
FROM node:16-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN npx prisma generate

ARG DATABASE_URL
ARG AUTHORIZATION_HEADER
ARG API_KEY
ARG GOOGLE_CLIENT_ID
ARG GOOGLE_CLIENT_SECRET
ARG NEXTAUTH_URL
ARG NEXTAUTH_SECRET

RUN npm run build

# Production image, copy all the files and run next
FROM node:16-alpine AS runner
WORKDIR /app

ENV NODE_ENV production

ARG DATABASE_URL
ENV DATABASE_URL $DATABASE_URL
ARG AUTHORIZATION_HEADER
ENV AUTHORIZATION_HEADER $AUTHORIZATION_HEADER
ARG API_KEY
ENV API_KEY $API_KEY
ARG GOOGLE_CLIENT_ID
ENV GOOGLE_CLIENT_ID $GOOGLE_CLIENT_ID
ARG GOOGLE_CLIENT_SECRET
ENV GOOGLE_CLIENT_SECRET $GOOGLE_CLIENT_SECRET
ARG NEXTAUTH_URL
ENV NEXTAUTH_URL $NEXTAUTH_URL
ARG NEXTAUTH_SECRET
ENV NEXTAUTH_SECRET $NEXTAUTH_SECRET

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

COPY --from=builder /app/public ./public

# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000

ENV PORT 3000

CMD ["node", "server.js"]