exphost » exphost-controller

it has to be - instad of . becase:
The Namespace "aa.bb.cc" is invalid: metadata.name: Invalid value: "aa.bb.cc": a lowercase RFC 1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character (e.g. 'my-name', or '123-abc', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?')