torjus/nixos-exporter
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2 Commits

Author SHA1 Message Date
Torjus Håkestad
5cc0e7eadd feat: add NATS cache sharing and smart cache refresh 
Add two complementary features to reduce remote revision cache staleness:

1. Smart local cache: When current system revision matches cached remote
   revision, force an immediate cache refresh to check for newer revisions.

2. NATS integration: Share cache updates across hosts via NATS pub/sub.
   Hosts publish revision updates when they fetch new data, and subscribe
   to receive updates from other hosts. Features include:
   - Auto-reconnect with infinite retries
   - Graceful fallback when NATS unavailable
   - Filtering by flake URL and hostname

New CLI flags:
  --flake.nats.enable
  --flake.nats.url
  --flake.nats.subject
  --flake.nats.credentials-file

New NixOS module options under services.prometheus.exporters.nixos.flake.nats

Bumps version to 0.3.0.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 2026-02-08 23:05:52 +01:00
Torjus Håkestad
f637da487c feat: implement nixos-exporter 
Prometheus exporter for NixOS-specific metrics including:
- Generation collector: count, current, booted, age, config mismatch
- Flake collector: input age, input info, revision behind

Includes NixOS module, flake packaging, and documentation.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 2026-02-06 22:52:28 +01:00