Deploy HTTP proxy for docs.caascad.com
See the JIRA issue.
Right now, docs.caascad.com is a CNAME pointing to docs-clients.corp.caascad.com and the docs-clients.corp.caascad.com Ingress creates a TLS cert.
We want to isolate DNS zones on the k8s clusters so to remove the TLS cert needed by the kubernetes ingress, we deploy an HTTP proxy behind docs.caascad.com.