fegger
012eee6c45
- update-health.js: pings every service URL from script.js (single source of truth) in parallel every minute via cron and writes health.json; any HTTP response below 500 counts as online, 5xx as error, timeouts/DNS failures as offline; TLS validity ignored - Card badges now show real state instead of a static Online label: grey Checking, green Online (with latency tooltip), amber Error (HTTP code), red Offline (reason); refreshed every 30 s - Entrypoint runs a first sweep at boot; nginx serves /health.json with no-cache; README documents the behavior
28 lines
991 B
Docker
28 lines
991 B
Docker
# Dashboard: nginx static host + calendar/data updater + API proxy.
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FROM nginx:1.27-alpine
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# Install Node.js and cron for the data updater.
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RUN apk add --no-cache nodejs dcron
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# Copy site assets.
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COPY index.html style.css script.js /usr/share/nginx/html/
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COPY icons /usr/share/nginx/html/icons
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COPY nginx.conf /etc/nginx/conf.d/default.conf
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# Backend scripts (node_modules included so the build works offline).
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COPY api /opt/dashboard
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# Cron refreshes the data feed every 15 minutes and health checks every minute.
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RUN printf '*/15 * * * * cd /opt/dashboard && node update-data.js\n* * * * * cd /opt/dashboard && node update-health.js\n' > /etc/crontabs/root
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# Entrypoint: run updater once, start API proxy + cron, then nginx.
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COPY docker-entrypoint.sh /docker-entrypoint.sh
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RUN chmod +x /docker-entrypoint.sh
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EXPOSE 80
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HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
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CMD wget -q --spider http://127.0.0.1:80/ || exit 1
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ENTRYPOINT ["/docker-entrypoint.sh"]
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