feat(prometheus): expose controlplane connectivity state as a gauge #14020
+111
−3
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Summary
Add a new Prometheus gauge metric
controlplane_reachable
. Similar todatastore_reachable
gauge, 0 means the connection is not healthy; 1 means that the connection is healthy. We mark the connection as unhealthy under the following circumstances:This is helpful for users running a signficant number of gateways to be alerted about potential issues any gateway(s) may be facing while talking to the controlplane.
Checklist
changelog/unreleased/kong
orskip-changelog
label added on PR if changelog is unnecessary. README.mdIssue reference
Fix #[issue number]