Dockerfile

# Builder Stage
FROM node:iron-alpine AS builder
WORKDIR /app
COPY . .
RUN npm ci
RUN npm run build

# Production Stage
FROM node:iron-alpine AS production
WORKDIR /app

LABEL name="nextjs" \
  description="Plamosphere Website" \
  eu.mia-platform.url="https://www.mia-platform.eu"

# add env vars here to have them available on printenv or process.env
ENV NODE_ENV production
ENV NEXT_TELEMETRY_DISABLED 1
ENV NEXT_SHARP_PATH "/app/node_modules/sharp"

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

# copy the public folder from the project as this is not included in the build process
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
# copy the standalone folder inside the .next folder generated from the build process
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
# copy the static folder inside the .next folder generated from the build process
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
# copy the static folder inside the .next folder generated from the build process
COPY --from=builder --chown=nextjs:nodejs /app/entrypoint.sh ./entrypoint.sh

# change permissions on app folder
RUN chown -R nextjs:nodejs /app

USER nextjs

RUN chmod 700 /app

# This script replaces placeholder strings created by Next build at build time (to be used as env vars) with env vars values available at runtime.
# NB: env vars are replaced only if they start with REPLACE_SERVER_ENV_ keyword
RUN chmod +x ./entrypoint.sh

EXPOSE 3000
ENV PORT 3000

ENTRYPOINT ["/app/entrypoint.sh", "node", "server.js"]