Tronax
1abc08b60f
The container ran as the unprivileged "node" user, but bind-mounted host
directories (e.g. ./data:/app/data in docker-compose or an Unraid appdata
folder) are mounted with root ownership. The node user therefore could not
create trxtd.db in /app/data, failing at startup with:
Error: unable to open database file
at file:///app/server/db.mjs:12
Fix:
- Add docker-entrypoint.sh that mkdir/chown /app/data to node:node on
container start, then drops privileges back to node via su-exec
- Install su-exec in the runtime stage (apk add --no-cache su-exec)
- Remove USER node so the entrypoint runs as root and can fix ownership,
with privilege dropping handled inside the entrypoint instead
- Wire the script up as ENTRYPOINT, keeping CMD as the app itself
The mount path itself is unchanged (/app/data, host ./data). Verified with
a real bind mount: /health responds ok and trxtd.db/-shm/-wal are created
in the mounted directory.
42 lines
1.2 KiB
Docker
42 lines
1.2 KiB
Docker
# ---------- Build stage ----------
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FROM node:22-alpine AS build
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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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COPY . .
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RUN npm run build
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# ---------- Runtime stage ----------
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FROM node:22-alpine
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WORKDIR /app
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ENV NODE_ENV=production
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# production dependencies only (ws) + su-exec for privilege dropping
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COPY package.json package-lock.json ./
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RUN npm ci --omit=dev && npm cache clean --force && \
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apk add --no-cache su-exec
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COPY server/server.mjs server/server.mjs
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COPY server/db.mjs server/db.mjs
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COPY shared/ shared/
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COPY --from=build /app/dist dist/
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COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
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RUN chmod +x /usr/local/bin/docker-entrypoint.sh
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# persistent account/progress database (mount a volume here on the host)
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RUN mkdir -p /app/data
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VOLUME ["/app/data"]
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EXPOSE 3001
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ENV PORT=3001
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ENV DATA_DIR=/app/data
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# The entrypoint fixes permissions on bind-mounted /app/data and drops
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# privileges to the unprivileged "node" user before running the app.
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ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
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CMD ["node", "server/server.mjs"]
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HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
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CMD node -e "fetch('http://localhost:3001/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"
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