#1180 gave web-app-matrix a canonical `jitsi` domain for its own Jitsi
and listed it under `services.jitsi.domains`. When Jitsi is shared or
disabled nothing serves that domain, and the blackbox healthz job of
web-app-prometheus probed every canonical domain, so the probe of
https://jitsi.matrix.<domain>/healthz/ready failed with "tls:
unrecognized name" and `prometheus scrape: every consumer role reports
up=1 and passes its probe` went red (main run 40017166046: Matrix#2,
Nextcloud#12).
web_health_expectations already skipped such keys. The rule now lives
in utils/domains/unserved.py: a key claimed by a service entity that is
disabled, or enabled but shared, is not served by that app. The health
filter uses it unchanged, and prometheus.yml.j2 filters its targets
through the new `served_domains` filter, which also drops the
`<key>_onion` mirror of a skipped key.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5.5