Hello, We needed a way to get traffic server metrics into Prometheus. Searching around I found java and python based versions of this, but wanting to have the deployment have zero dependencies and to scratch an itch I wrote one in Golang. It's not complete as I haven't had time to comb through all of the metrics that ATS exports, but it's what we consider the "core" metrics for our monitoring and dashboard needs.
https://github.com/poblahblahblah/trafficserver_exporter -patrick
