Prober monitors the uptime of our servers and pumps the results of those probes into Prometheus.
Prober periodically polls a set of URLs and uses an appropriate
ResponseTester function to make sure the URL is serving the correct response or lack of response.
Application specific probers should be placed in the //prober directory of the k8s-config repo in a file named for the application. The
generate.sh script will incorporate all such files into a single prober config file that is included in the proberk Docker image.