I circled back to some work around distributed tracing using OpenTelemetry today and added manual instrumentation to VMPooler's API so that we can better see what's going on under the hood and where things might be able to be improved. https://github.com/puppetlabs/vmpooler/pull/400 This work proved immediately insightful as I found a place where the API makes a network connection that I was unaware of previously.

Next up on this application is instrumenting pool manager and the other bits of code that haven't yet been enhanced.