ProxyBaseUrl failure after overnight automatic Tomcat update to 9.0.58?

We’ve had more than one Geoserver instance go down overnight, seemingly after at apt update to Tomcat. The symptom is specific: our ProxyBaseUrl setting is no longer being respected, possibly specifically only the protocol. Admin interface and web services are therefore down, as HTTPS requests lead to HTTP endpoints. Otherwise, the boxes seem perhaps healthy.

Is anyone else seeing this?

Issue was an unwisely edited Tomcat service definition file, whose read-write entry for the Geoserver data directory was overwritten by an overnight Ubuntu unattended upgrade of Tomcat. Solution is to add graceful overrides instead of directly editing the service definition file.

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