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44cab34f6f
Enable Next `output: 'standalone'` and rewrite the Dockerfile to package only the traced standalone server + .next/static + public on node:20-slim (glibc, matching the runner), running `node server.js`. No in-image npm ci, no full source or dependency tree. Cuts the image ~52%, so docker push and the server pull get much faster.
Also fixes a latent entrypoint bug (${VAR:"none"} -> ${VAR:-"none"}) that busybox sh tolerated but Debian dash (node:20-slim /bin/sh) rejects, which would otherwise crash the container on boot.
Smoke-tested via isolated build + docker run: boots in 37ms, all routes 200, redirects still bundled (/slack-url -> 307), static + public assets served, DocSearch env-injection intact.
31 lines
1.0 KiB
Docker
31 lines
1.0 KiB
Docker
FROM node:20-slim
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WORKDIR /usr/app
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ENV NODE_ENV=production
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# Next's standalone server binds to localhost by default; listen on all
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# interfaces inside the container, and pin the port.
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ENV HOSTNAME=0.0.0.0
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ENV PORT=3000
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# Next's standalone output (built on the CI runner, see build_n_push.yml)
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# bundles a minimal, traced node_modules plus server.js — there is nothing to
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# install here. The output is traced against the runner (Ubuntu/glibc), so this
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# runtime image must also be glibc (node:20-slim, NOT alpine/musl) or the traced
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# native binaries won't load.
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COPY .next/standalone ./
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# standalone does not include static assets or the public dir — copy them in.
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COPY .next/static ./.next/static
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COPY public ./public
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COPY docker/entrypoint.sh ./entrypoint.sh
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RUN chmod +x ./entrypoint.sh
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EXPOSE 3000
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# entrypoint.sh substitutes the APP_NEXT_PUBLIC_DOCSEARCH_* placeholders baked
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# into .next with real values from the container env, then execs the CMD.
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ENTRYPOINT ["/usr/app/entrypoint.sh"]
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CMD ["node", "server.js"]
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