josh
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Bind mounts override the image's chown, so the container's nextjs user (uid 1001) couldn't write to /app/data when it was mounted from a host dir owned by someone else. Start as root, fix ownership in an entrypoint, then drop to nextjs via su-exec. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
46 lines
1.3 KiB
Docker
46 lines
1.3 KiB
Docker
# syntax=docker/dockerfile:1.7
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ARG NODE_VERSION=22-alpine
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# ── deps: install node_modules (with native build tools for better-sqlite3) ──
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FROM node:${NODE_VERSION} AS deps
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RUN apk add --no-cache libc6-compat python3 make g++
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WORKDIR /app
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COPY package.json package-lock.json ./
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RUN npm ci
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# ── builder: produce the standalone Next.js bundle ──
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FROM node:${NODE_VERSION} AS builder
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WORKDIR /app
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COPY --from=deps /app/node_modules ./node_modules
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COPY . .
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ENV NEXT_TELEMETRY_DISABLED=1
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RUN npm run build
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# ── runner: minimal runtime image ──
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FROM node:${NODE_VERSION} AS runner
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WORKDIR /app
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ENV NODE_ENV=production
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ENV NEXT_TELEMETRY_DISABLED=1
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ENV PORT=3000
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ENV HOSTNAME=0.0.0.0
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RUN apk add --no-cache su-exec \
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&& addgroup --system --gid 1001 nodejs \
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&& adduser --system --uid 1001 nextjs
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COPY --from=builder /app/public ./public
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COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
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COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
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RUN mkdir -p /app/data && chown nextjs:nodejs /app/data
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COPY docker-entrypoint.sh /usr/local/bin/
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RUN chmod +x /usr/local/bin/docker-entrypoint.sh
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# Stay as root so the entrypoint can fix bind-mount ownership, then drop
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# privileges via su-exec before launching the server.
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EXPOSE 3000
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VOLUME ["/app/data"]
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ENTRYPOINT ["docker-entrypoint.sh"]
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CMD ["node", "server.js"]
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