Erich Blume
ce59e9951b
Quartz's CreatedModifiedDate plugin recognizes `modified`, `lastmod`, `updated`, and `last-modified` — but not `date-modified`. The wrong field name caused Quartz to fall through to filesystem timestamps (UTC in Dagger), showing incorrect dates on the rendered site. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
67 lines
2.3 KiB
Markdown
67 lines
2.3 KiB
Markdown
---
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title: Alloy
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modified: 2026-02-08
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tags:
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- service
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- observability
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---
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# Grafana Alloy
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Unified observability collector for metrics and logs with three deployments:
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1. **Indri (host)** - System metrics and service logs from macOS host
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2. **Kubernetes (DaemonSet)** - Automatic pod log collection and service health probes
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3. **Fly.io proxy (embedded)** - nginx access log metrics and log forwarding from [[flyio-proxy]]
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## Quick Reference
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| Property | Value |
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|----------|-------|
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| **Indri Binary** | `~/.local/bin/alloy` |
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| **Indri Config** | `~/.config/grafana-alloy/config.alloy` |
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| **K8s Namespace** | `alloy` |
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| **K8s Image** | `grafana/alloy:v1.8.2` |
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| **ArgoCD App** | `alloy-k8s` |
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| **Fly.io Config** | `fly/alloy.river` |
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| **Fly.io Image** | `grafana/alloy:v1.5.1` (binary copied into nginx container) |
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## Metrics Collected
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### From Indri
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- System metrics via `prometheus.exporter.unix`
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- Textfile collector: `minikube.prom`, `borgmatic.prom`, `zot.prom`, `jellyfin.prom`
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- Zot registry metrics from `http://localhost:5050/metrics`
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- Pushed to [[prometheus]] via remote_write
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### From Kubernetes
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- All pod logs via `loki.source.kubernetes`
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- Service health probes: miniflux, kiwix, transmission, devpi, argocd
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### From Fly.io Proxy
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- `flyio_nginx_http_requests_total` — request rate by status/method/host
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- `flyio_nginx_http_request_duration_seconds` — latency histogram
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- `flyio_nginx_http_response_bytes_total` — response bandwidth
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- `flyio_nginx_cache_requests_total` — cache HIT/MISS/EXPIRED counts
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- Pushed to [[prometheus]] via remote_write through [[caddy]]
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## Logs Collected
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**Brew services:** forgejo, tailscale
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**mcquack LaunchAgents:** alloy, borgmatic, zot, jellyfin
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Logs pushed to [[loki]] at `https://loki.tail8d86e.ts.net/loki/api/v1/push`.
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**Fly.io proxy:** nginx JSON access logs pushed to [[loki]] at `https://loki.ops.eblu.me/loki/api/v1/push` (via [[caddy]]).
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## Why Built from Source
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The Homebrew bottle uses `CGO_ENABLED=0`, which breaks Tailscale MagicDNS. Building with `CGO_ENABLED=1` uses the macOS native resolver.
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**Note:** This may no longer be needed now that services use `*.ops.eblu.me` URLs (routed via Caddy) instead of `*.tail8d86e.ts.net`. Should be tested in the future.
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## Related
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- [[prometheus]] - Metrics storage
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- [[loki]] - Log storage
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- [[grafana]] - Visualization
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