tentacle: monitoring: make cluster matcher backward compatible for pre-reef metrics#66984
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aaSharma14 merged 1 commit intoceph:tentaclefrom Jan 22, 2026
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Ceph 18.* adds a `cluster` label to all Prometheus metrics. When upgrading from earlier releases, historical metrics lack this label and are excluded by Grafana queries that strictly match on `cluster`. Update the shared Grafana matcher logic to use a regex matcher that also matches series without the `cluster` label, restoring visibility of pre-upgrade metrics while preserving multi-cluster behavior. Fixes: https://tracker.ceph.com/issues/74342 Signed-off-by: Aashish Sharma <aasharma@redhat.com> (cherry picked from commit f7f74e4)
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backport tracker: https://tracker.ceph.com/issues/74452
backport of #66661
parent tracker: https://tracker.ceph.com/issues/74342
this backport was staged using ceph-backport.sh version 16.0.0.6848
find the latest version at https://github.com/ceph/ceph/blob/main/src/script/ceph-backport.sh