Frank
f073b91033
Prometheus 3 refuses HTML scrape bodies, so the comfyui/services probe jobs were structurally dead targets reading as outages. HTTP liveness now rides a blackbox exporter (shared/blackbox/blackbox.yml, loopback bind, http_2xx module); prometheus.yml probes SearXNG, OpenWebUI and ComfyUI via __param_target relabeling. The unit is a boot-persistent, self-healing root quadlet.
230 lines
9.6 KiB
YAML
230 lines
9.6 KiB
YAML
# Prometheus configuration for the homelab.
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# Deployed to /opt/prometheus/config/prometheus.yml on Dankclaw.
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global:
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scrape_interval: 15s
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scrape_timeout: 10s
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evaluation_interval: 15s
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# Alerting and recording rules for the LLM fleet. They evaluate, expose
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# state through /alerts and the ALERTS metric, and — since 2026-09-17 —
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# deliver to Signal through Alertmanager (see the alerting section below).
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rule_files:
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- /etc/prometheus/rules/*.yml
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# The delivery half. Alertmanager runs on the same dankclaw_default network,
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# so it is addressed by container name, like grafana and loki below. Its
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# single receiver webhooks the host-side signal-relay (192.168.0.143:18093,
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# reached from the container as host.containers.internal).
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alerting:
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alertmanagers:
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- static_configs:
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- targets: ["alertmanager:9093"]
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scrape_configs:
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# Prometheus itself
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- job_name: "prometheus"
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static_configs:
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- targets: ["localhost:9090"]
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# Host metrics — both hosts. node-dankclaw is scraped over
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# host.containers.internal, not its own LAN address: this Prometheus is a
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# bridge container, and on this netavark host a container can only reach the
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# host's LAN IP at a PUBLISHED port — node-exporter's net=host bind on
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# 192.168.0.143:9100 is refused by construction (the same rule that sends
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# frank-dragoon and frank-zealot to the gateway below). node-dankserver is a
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# different machine, so its LAN address works.
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- job_name: "node-dankclaw"
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static_configs:
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- targets: ["host.containers.internal:9100"]
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- job_name: "node-dankserver"
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static_configs:
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- targets: ["192.168.0.235:9100"]
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# Gitea metrics (quadlet on an isolated network; use the published LAN port)
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- job_name: "gitea"
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static_configs:
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- targets: ["192.168.0.143:3000"]
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metrics_path: "/metrics"
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# Grafana metrics
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- job_name: "grafana"
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static_configs:
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- targets: ["grafana:3000"]
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metrics_path: "/metrics"
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# Loki metrics
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- job_name: "loki"
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static_configs:
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- targets: ["loki:3100"]
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metrics_path: "/metrics"
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# HTTP liveness, probed honestly through the blackbox exporter. Scraping a
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# web root is NOT a health check — an HTML front page fails the scrape
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# protocol (`unsupported Content-Type`), which is exactly why the old
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# `services` and `comfyui` jobs were red forever beside healthy services
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# (Stale Signal Audit §1). The prober is a host-netns container reached at
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# the podman gateway name (HostAddr= on the prometheus unit); it in turn
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# reaches both the host LAN IP and bridge container names. comfyui's UI probe
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# lives here now — its own metrics-scrape job is retired, one owner per
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# service.
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- job_name: "services"
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metrics_path: /probe
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params:
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module: [http_2xx]
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static_configs:
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- targets:
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- "http://192.168.0.143:8081" # SearXNG (via the Gluetun tunnel)
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- "http://192.168.0.143:3005" # OpenWebUI
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- "http://comfyui:8188" # ComfyUI UI (gfx1151 generator)
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relabel_configs:
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- source_labels: [__address__]
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target_label: __param_target
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- source_labels: [__param_target]
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target_label: instance
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- target_label: __address__
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replacement: "host.containers.internal:9115"
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# LLM fleet. Scraped on the LAN addresses where the endpoint is reachable from
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# this container, not the guarded vhosts: these are machine clients and
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# Prometheus cannot solve an Anubis challenge.
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#
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# One metric namespace: llamacpp:* — frank-dragoon, frank-zealot and
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# frank-archon, all llama.cpp with /metrics (the family verified from
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# /metrics on 2026-09-16 and 2026-09-20) and all exporting
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# requests_deferred (the queue depth, the only form llama.cpp shows the
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# capacity wall in), spec_decode_num_drafts_total, tokens_predicted_total,
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# and the prompt_tokens_cached_total / prompt_tokens_total reuse pair.
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#
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# frank-dragoon and frank-zealot are scraped over host.containers.internal,
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# not their own LAN addresses: this Prometheus is a bridge-networked
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# container (Network=dankclaw_default), and on this netavark host a
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# container can only reach the host's LAN IP at a PUBLISHED port — a
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# host-process bind like llama-server's 0.0.0.0:7770 is refused at
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# 192.168.0.143:7770 while it answers at 169.254.1.2:7770. That is
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# why frank-zealot was red here for days (up{job="frank-zealot"} == 0,
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# "dial tcp 192.168.0.143:7771") even though the endpoint was healthy and
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# exporting: the target address was unreachable by construction, not the
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# service down. Same host, same rule, so both local endpoints use the
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# gateway.
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#
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# (2026-10-05) frank-archon LEFT the llamacpp family with FreeToken
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# (the PR587 ROCm engine then serving it had NO /metrics — the job
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# scraped 404s forever, a structural never-green) and RE-JOINED the same
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# day on the radiance engine: its exporter speaks vLLM-compatible names
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# plus radiance:* families, a different namespace — hence the separate
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# job below, not a re-add to the llamacpp pair. The netavark quirk above
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# is same-host only; plain LAN routing REACHES 192.168.0.235:7770.
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- job_name: "frank-zealot"
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metrics_path: "/metrics"
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static_configs:
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- targets: ["host.containers.internal:7771"]
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labels:
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service: frank-zealot
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- job_name: "frank-dragoon"
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metrics_path: "/metrics"
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static_configs:
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- targets: ["host.containers.internal:7770"]
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labels:
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service: frank-dragoon
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# frank-archon (dankserver) — the radiance engine since 2026-10-05.
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# A DIFFERENT host, so plain LAN routing is correct here (the
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# host.containers.internal trick is same-host only): health answers at
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# 192.168.0.235:7770 from this bridge container. Radiance exports
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# vLLM-compatible names plus radiance:* families — NOT the llamacpp:*
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# namespace, so llm-fleet rules must not be pointed at this target.
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- job_name: "frank-archon"
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metrics_path: "/metrics"
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static_configs:
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- targets: ["192.168.0.235:7770"]
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labels:
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service: frank-archon
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# Per-container metrics from cadvisor (a rootless quadlet on each host).
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# cadvisor keys every series by the cgroup path; for a quadlet container that
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# path is …/app.slice/<name>.service[/libpod-payload-<hex>], so the unit NAME
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# lives in it. The relabel below pulls that name out into a `container` label
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# and keeps only the per-unit aggregate — cadvisor's raw host root,
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# system.slice daemons and machine.slice scopes carry no such name and are
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# dropped, as is the per-CPU-core split (only cpu="total" survives), so the
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# scrape stays small. cadvisor cannot bind per-interface, so it is reached at
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# the podman gateway like every same-host target: a BRIDGE CONTAINER CANNOT
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# DIAL ITS OWN HOST'S LAN IP AT ALL — the netavark hairpin gap refuses the
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# connection whether the port is a host-net bind or a published port (the
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# original note here claimed published ports were exempt; measured 2026-10-21
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# from inside this container: LAN refused, gateway answers). Cross-host
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# targets (dankserver) have no hairpin problem and stay plain LAN.
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- job_name: "cadvisor-dankclaw"
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static_configs:
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- targets: ["host.containers.internal:8080"]
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labels:
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host: dankclaw
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metric_relabel_configs:
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- source_labels: [id]
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regex: '.*/app\.slice/([^.]+)\.service(?:/.*)?$'
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target_label: container
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replacement: '$1'
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# Keep only the unit-level cgroup; drop its payload/control children so a
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# container is not counted twice.
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- source_labels: [id]
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regex: '.*/\.service/.*'
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action: drop
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# Drop everything that is not a named unit (no `container` was extracted).
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- source_labels: [container]
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regex: '.+'
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action: keep
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# cpu="total" for cpu series; metrics with no cpu label (memory, network,
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# filesystem) are kept.
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- source_labels: [cpu]
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regex: '^$|total'
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action: keep
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- regex: 'id|name|image|container_label.*|machine_id|boot_id'
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action: labeldrop
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- job_name: "cadvisor-dankserver"
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static_configs:
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- targets: ["192.168.0.235:8080"]
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labels:
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host: dankserver
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metric_relabel_configs:
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- source_labels: [id]
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regex: '.*/app\.slice/([^.]+)\.service(?:/.*)?$'
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target_label: container
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replacement: '$1'
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- source_labels: [id]
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regex: '.*/\.service/.*'
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action: drop
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- source_labels: [container]
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regex: '.+'
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action: keep
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- source_labels: [cpu]
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regex: '^$|total'
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action: keep
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- regex: 'id|name|image|container_label.*|machine_id|boot_id'
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action: labeldrop
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# Per-GPU metrics (gpu_utilization_percent / gpu_memory_used_bytes /
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# gpu_memory_total_bytes / gpu_temperature_celsius / gpu_power_watts) from the
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# host-process gpu-exporter (scripts/gpu-exporter.py). One job per host, same
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# reach rules as node/cadvisor: Dankclaw is scraped at the podman gateway
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# because the netavark hairpin quirk makes Prometheus fail to dial its own
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# host LAN IP; Dankserver is plain LAN. The gpu label (PCI BDF on AMD, index on
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# NVIDIA) + vendor/model come from the exporter, so the GPU row on the
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# host-system dashboard filters by host. Power is emitted only where readable
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# (NVIDIA + the Dankclaw iGPU); the R9700s have no sysfs power, so they simply
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# have no gpu_power_watts series — no fabricated zero.
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- job_name: "gpu-dankclaw"
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static_configs:
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- targets: ["host.containers.internal:9401"]
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labels:
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host: dankclaw
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- job_name: "gpu-dankserver"
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static_configs:
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- targets: ["192.168.0.235:9401"]
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labels:
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host: dankserver
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