Dockerfile

# Make the Node version into a variable so that it may be updated easily if / when needed. (ie "20.1.0")
ARG nodeVersion

# Using a node image itself so the app may be started and stoped more directly.
FROM node:${nodeVersion} AS deps

WORKDIR /app

# Install dependencies based on the preferred package manager
COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* .yarnrc.yml ./
COPY .yarn ./.yarn

# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
# RUN apt-get install -y libc6-compat
RUN apt-get update && \
    apt-get -qy install openssl && \
    yarn

# Rebuild the source code only when needed
FROM deps AS builder

WORKDIR /app

COPY . .
COPY --from=deps --chown=node:node /app/.yarn ./.yarn
COPY --from=deps --chown=node:node /app/.yarnrc.yml  ./

RUN yarn prisma:generate && \
    yarn build

# Production image, copy all the files and run next
FROM node:${nodeVersion} AS runner

WORKDIR /app

# 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 runtime.
# ENV NEXT_TELEMETRY_DISABLED 1

RUN addgroup --system --gid 1001 nodejs && \
    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
COPY --from=builder /app/prisma ./prisma

# copy, for example,  .env.production.local
COPY --chown=nextjs:nodejs .env.* .

USER nextjs

# Inside the container, start the server.
# Only if `NO_AUTO_START` is NOT set.
# Otherwise, tail nothing so a process will continue and the container will run.
CMD ["bash", "-c", "if [ -z ${NO_AUTO_START} ]; then node /app/server.js; else tail -f /dev/null; fi"]