Dockerfile

# Base image
FROM node:20-alpine AS base
ARG DATABASE_URL
ARG NEXTAUTH_SECRET
ARG NEXTAUTH_URL
ARG SALT

# It's important to update the index before installing packages to ensure you're getting the latest versions.
# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk update && apk upgrade --no-cache libcrypto3 libssl3 libc6-compat

FROM base AS deps
ARG DATABASE_URL
ARG NEXTAUTH_SECRET
ARG NEXTAUTH_URL
ARG SALT

WORKDIR /app

# Install dependencies based on the preferred package manager
COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* ./
RUN \
  if [ -f yarn.lock ]; then yarn --frozen-lockfile; \
  elif [ -f package-lock.json ]; then npm ci; \
  elif [ -f pnpm-lock.yaml ]; then yarn global add pnpm && pnpm i --frozen-lockfile; \
  else echo "Lockfile not found." && exit 1; \
  fi


# Rebuild the source code only when needed
FROM base AS builder
ARG DATABASE_URL
ARG NEXTAUTH_SECRET
ARG NEXTAUTH_URL
ARG SALT

WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# remove middleware.ts if it exists - not needed in self-hosted environments
RUN rm -f ./src/middleware.ts

# Next.js collects completely anonymous telemetry data about general usage.
# Learn more here: https://nextjs.org/telemetry
# Uncomment the following line in case you want to disable telemetry during the build.
ENV NEXT_TELEMETRY_DISABLED 1

# Generate prisma client
RUN npx prisma generate

# Build the application
RUN npm run build

# Production image, copy all the files and run next
FROM base AS runner
ARG DATABASE_URL
ARG NEXTAUTH_SECRET
ARG NEXTAUTH_URL
ARG SALT

RUN apk add --no-cache dumb-init

WORKDIR /app

ENV NODE_ENV production
# Uncomment the following line in case you want to disable telemetry during runtime.
ENV NEXT_TELEMETRY_DISABLED 1

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

RUN npm install -g --no-package-lock --no-save prisma

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
COPY --from=builder --chown=nextjs:nodejs /app/prisma ./prisma

COPY --chown=nextjs:nodejs entrypoint.sh ./entrypoint.sh
RUN chmod +x ./entrypoint.sh

USER nextjs

# Default port to 3000
ENV PORT 3000

# CMD ["node", "server.js"]
CMD ["dumb-init", "--", "./entrypoint.sh"]