Single pane dashaboard for monitoring all services. (#2838)

* chore(monitoring): blackbox exporter tcp module

Signed-off-by: Rajesh Rajendran <rjshrjndrn@gmail.com>

* feat(monitoring): service health checks for VM workloads.

Monitoring vm workloads using blackbox exporter.
Using ServiceMonitor, Endpoints, and Service
Prior scraping using rewrite labels to change vm address and blackbox
address.