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chore(monitoring): stop scraping offline hosts, mute noisy alert levels

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- Add an offlineHosts list to VictoriaMetrics scrape generation: SBCs
  and the whole k3s-prod-1 cluster are powered off, shoukei's exporter
  is disabled on the machine; also comment out the dnsmasq-exporter
  job (runs on suzi).
- Disable node-exporter on shoukei: a laptop on untrusted networks
  should not expose :9100 (the firewall is off repo-wide).
- Route severity none|info alerts to the null receiver; meta alerts
  and info noise should never page.

Signed-off-by: Ryan Yin <xiaoyin_c@qq.com>
This commit is contained in:
Ryan Yin
2026-07-26 22:19:56 +08:00
parent ec208ab4d1
commit 74598b6f6b
3 changed files with 74 additions and 39 deletions
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hosts/idols-aquamarine/monitoring/alert.nix
+3 -3
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@@ -52,10 +52,10 @@
receiver = "telegram";
routes = [
{
# Watchdog & InfoInhibitor are meta alerts that should never notify,
# route them to a null receiver.
# Meta alerts like Watchdog & InfoInhibitor should never notify,
# and info-level alerts are too noisy; route them to a null receiver.
receiver = "null";
matchers = [ ''severity = "none"'' ];
matchers = [ ''severity =~ "none|info"'' ];
}
{
receiver = "telegram";