Frank
65bd5ccea7
- service-map render node-exporter-unit --host H: the MIRROR pair comment
('keep this file in step') becomes a template. Per-host title, LAN
address from the hosts map, port from the node-<host> scrape job. Both
tracked quadlets are now rendered artifacts; check_drift gates them.
- dankclaw/Caddyfile: the nine verbatim Anubis pre-auth chains
(reverse_proxy anubis:8923 + X-Real-Ip) collapse into the (guarded)
named snippet; guarded vhosts are 'import guarded'. Validated with real
caddy 2.11.7 (import resolution clean; the stock image stops at the
porkbun module and the git basicauth placeholder, as designed).
- vhost-scoped guard greps (authentik, homepage_caddy, marreta_quadlet)
now pin 'import guarded' in the vhost block.
- Service Inventory + Authentik docs carry the new laws.
57 lines
2.4 KiB
INI
57 lines
2.4 KiB
INI
# Quadlet unit: node-exporter (rootless, boot-persistent) — RENDERED ARTIFACT.
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# Regenerate: python3 scripts/service-map.py render node-exporter-unit --host dankserver
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# Source: shared/services.yml (entry node-exporter) + this template.
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#
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# Install path on dankserver: ~/.config/containers/systemd/node-exporter.container
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# Unit name: node-exporter.service (container name: node-exporter)
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#
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# Host metrics source for Prometheus. Replaces the compose service of the same
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# name (the "Observability" block): Dankclaw moved to this quadlet on
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# 2026-09-11, Dankserver on 2026-09-16 — its compose-only copy died at a reboot
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# and stayed dead (rootless Podman does not restart bare containers after the
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# explicit stop shutdown performs), dead for a day and a half before anyone
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# noticed. One owner per container name; no compose file remains anywhere.
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#
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# HOST NAMESPACE. It must run in the host network namespace to report the
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# host's own interfaces/connections, and --pid=host for the processes and
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# cgroups collectors. "localhost" inside the container is therefore the host's
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# loopback, which is what the homepage status timer probes.
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#
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# LISTEN ADDRESSES. Exactly two: loopback for the homepage status probe, and
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# the LAN address, because Prometheus — which runs in a container on
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# dankclaw_default — scrapes http://192.168.0.235:9100/metrics
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# (shared/prometheus/prometheus.yml, job "node-dankserver"). node_exporter has no
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# authentication, so the wildcard bind stays off the table; this is the
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# pairing that removes the unauthenticated observability surface on every
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# host, and both consumers are accounted for.
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#
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# MOUNTS. The container reads the host's /proc, /sys and / as /host/*
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# read-only and is pointed at them with --path.*; it writes nothing anywhere.
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[Unit]
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Description=Prometheus node exporter (Dankserver host metrics)
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After=network-online.target
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Wants=network-online.target
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[Container]
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ContainerName=node-exporter
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Image=docker.io/prom/node-exporter:latest
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Network=host
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PodmanArgs=--pid=host
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Exec=--path.procfs=/host/proc --path.sysfs=/host/sys --path.rootfs=/rootfs --web.listen-address=127.0.0.1:9100 --web.listen-address=192.168.0.235:9100
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Volume=/proc:/host/proc:ro
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Volume=/sys:/host/sys:ro
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Volume=/:/rootfs:ro
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HealthCmd=wget --spider -q http://localhost:9100/metrics
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HealthInterval=30s
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HealthTimeout=10s
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HealthRetries=3
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HealthStartPeriod=30s
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[Service]
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Restart=always
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RestartSec=10
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[Install]
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WantedBy=default.target
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