FROM node:24-alpine AS builder WORKDIR /app COPY package.json package-lock.json ./ RUN npm ci COPY . . ENV NEXT_TELEMETRY_DISABLED=1 # Optional: serve under a subpath like /webmail. Baked into emitted asset URLs # at build time, so it cannot be changed without rebuilding. ARG NEXT_PUBLIC_BASE_PATH= ENV NEXT_PUBLIC_BASE_PATH=$NEXT_PUBLIC_BASE_PATH # Commit SHA shown in the About screen. .dockerignore excludes .git, so # `git rev-parse` inside the build can't find it - CI must pass it in. ARG GIT_COMMIT=unknown ENV GIT_COMMIT=$GIT_COMMIT RUN npx next build --webpack FROM node:24-alpine AS runner LABEL org.opencontainers.image.title="Bulwark Webmail" LABEL org.opencontainers.image.description="Modern webmail client built with Next.js and the JMAP protocol" LABEL org.opencontainers.image.source="https://github.com/bulwarkmail/webmail" LABEL org.opencontainers.image.url="https://github.com/bulwarkmail/webmail" LABEL org.opencontainers.image.licenses="AGPL-3.0-only" LABEL org.opencontainers.image.vendor="rbm.systems" WORKDIR /app ENV NODE_ENV=production ENV NEXT_TELEMETRY_DISABLED=1 RUN apk upgrade --no-cache && \ npm uninstall -g npm && \ rm -rf /usr/local/lib/node_modules/npm /usr/local/bin/npx && \ addgroup --system --gid 1001 nodejs && \ adduser --system --uid 1001 nextjs COPY --from=builder /app/public ./public COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./ COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static RUN mkdir -p /app/data/settings /app/data/admin /app/data/admin-state /app/data/telemetry && chown -R nextjs:nodejs /app/data USER nextjs EXPOSE 3000 ENV PORT=3000 ENV HOSTNAME="0.0.0.0" CMD ["node", "server.js"]