a499446366
Spawning a full Node process for health checks is slow on Alpine and can exceed the 3s timeout, causing the container to be marked unhealthy. Use wget (built into Alpine) instead, and increase start_period to 15s.
34 lines
784 B
Docker
34 lines
784 B
Docker
# Node.js backend
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FROM node:18-alpine
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# Build tools needed for better-sqlite3 native compilation
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# su-exec for dropping privileges in entrypoint
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RUN apk add --no-cache python3 make g++ su-exec
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WORKDIR /app
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COPY package*.json ./
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RUN npm install --omit=dev
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# Remove build tools after install to keep image small
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RUN apk del python3 make g++
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COPY . .
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# Create data directory for SQLite
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RUN mkdir -p /data
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VOLUME /data
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# Entrypoint fixes /data permissions then drops to node user
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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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EXPOSE 3001
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HEALTHCHECK --interval=10s --timeout=5s --start_period=15s --retries=3 \
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CMD wget -qO- http://localhost:3001/api/health || exit 1
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ENTRYPOINT ["docker-entrypoint.sh"]
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CMD ["node", "server.js"]
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