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fix(monitoring): add release label so node-health rules actually load #111

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kblack0610 merged 1 commit from fix/node-health-rule-selector into master 2026-07-09 19:24:36 +00:00
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kblack0610 commented 2026-07-09 19:24:33 +00:00
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Latent bug found while adding DiskPressure alerts (#109): homelab-node-health lacked the release=kube-prometheus-stack label the Prometheus ruleSelector requires, so NONE of its alerts (NodeDown included) have ever loaded. This label fixes it.

Latent bug found while adding DiskPressure alerts (#109): homelab-node-health lacked the release=kube-prometheus-stack label the Prometheus ruleSelector requires, so NONE of its alerts (NodeDown included) have ever loaded. This label fixes it.
The homelab-node-health PrometheusRule (NodeDown, NodeExporterAbsent, and the
new DiskPressure/root-fs alerts) was never loaded by Prometheus: its
ruleSelector matches {release: kube-prometheus-stack} and this rule lacked
that label. It has been dead since creation ~22d ago, so no node-health alert
has ever fired. Adding the label makes the operator select it.

Verified: the label is the only difference from the working stock node-exporter
PrometheusRule.
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