Josh Knapp
b431a66a7b
A 10s postgresql restart took down transcribe.shadowdao.com-01 for ~17h because pm2 gave up after 5 fast retries, the entrypoint's trailing tail -f kept PID 1 alive, and the healthcheck (wget --spider on nginx port 80) succeeded on the 301-to-https redirect regardless of whether Node was alive. Three coordinated fixes to the cnoc image: - HEALTHCHECK: replace the redirect-passing wget probe with TCP-level checks on 127.0.0.1:3000 (Node) and :80 (nginx). Tenant-agnostic, no /ping dependency — catches the exact incident scenario (port 3000 closed when pm2 exits). - entrypoint.sh: exec pm2 via tini so it becomes PID 1. When pm2 exhausts max_restarts and exits, the container exits and the unless-stopped restart policy brings it back. Logs are tailed in the background with -F (logrotate-safe). - Dockerfile: install tini from EPEL for proper signal forwarding and zombie reaping of nginx/crond children that reparent to PID 1. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
42 lines
1.6 KiB
Docker
42 lines
1.6 KiB
Docker
FROM almalinux/9-base
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ARG NODEVER=20
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# Install repos, update, install only needed packages, clean up in one layer
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RUN dnf install -y \
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https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm && \
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dnf update -y && \
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dnf install -y wget procps cronie iproute nginx openssl git microdnf make gcc gcc-c++ tini && \
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dnf group install -y 'Development Tools' && \
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dnf clean all && \
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rm -rf /var/cache/dnf /usr/share/doc /usr/share/man /usr/share/locale/* \
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/var/cache/yum /tmp/* /var/tmp/*
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# Copy scripts into the image and set permissions
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COPY ./scripts/ /scripts/
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RUN chmod +x /scripts/*
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# Generate self-signed cert, create needed dirs, install Node.js, clean up
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RUN openssl req -newkey rsa:2048 -nodes -keyout /etc/pki/tls/private/localhost.key -x509 -days 3650 -subj "/CN=localhost" -out /etc/pki/tls/certs/localhost.crt && \
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mkdir -p /var/log/nodejs && \
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/scripts/install-node$NODEVER.sh && \
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rm -rf /tmp/*
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# Install PM2 globally for process management with minimal footprint
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RUN npm install -g pm2@latest --production && \
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npm cache clean --force && \
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rm -rf /tmp/*
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# Copy nginx config
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COPY ./configs/nginx.conf /etc/nginx/nginx.conf
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# Copy examples directory for default app fallback
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COPY ./examples/ /examples/
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# Set up cron job for log rotation
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RUN echo "15 */12 * * * root /scripts/log-rotate.sh" >> /etc/crontab
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HEALTHCHECK --interval=30s --timeout=5s --start-period=60s --retries=3 \
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CMD bash -c ': </dev/tcp/127.0.0.1/3000 && : </dev/tcp/127.0.0.1/80' \
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|| exit 1
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ENTRYPOINT [ "/scripts/entrypoint.sh" ] |