We have a few hostnames in `hieradata/common/profile/trafficserver/backend.yaml` that should be moved to discovery records for easier operations (e.g. reimage/flip/etc).
Namely:
```
target: http://grafana-rw.wikimedia.org
replacement: https://grafana1002.eqiad.wmnet
target: http://grafana-next-rw.wikimedia.org
replacement: https://grafana2001.codfw.wmnet
target: http://grafana.wikimedia.org
replacement: https://grafana1002.eqiad.wmnet
target: http://grafana-next.wikimedia.org
replacement: https://grafana2001.codfw.wmnet
target: http://logstash.wikimedia.org
replacement: https://kibana7.svc.eqiad.wmnet
target: http://prometheus-eqiad.wikimedia.org
replacement: https://prometheus1005.eqiad.wmnet
target: http://prometheus-codfw.wikimedia.org
replacement: https://prometheus2005.codfw.wmnet
target: http://pyrra.wikimedia.org
replacement: http://titan1001.eqiad.wmnet
target: http://slo.wikimedia.org
replacement: http://titan1001.eqiad.wmnet
target: http://slos.wikimedia.org
replacement: http://titan1001.eqiad.wmnet
```