provider validation of hostnames apparently isnt very good

[hydrogen18]

while setting up my provider I goofed up one of the hostnames with an invalid character. I got this error

Feb 17 18:13:10 ams0 akash[1745601]: E[2021-02-17|18:13:10.856] applying ingress                             module=provider-cluster-kube err="Ingress.extensions \"web\" is invalid: spec.rules[0].host: Invalid value: \"8uhrdv0kdpegf231vkrbiv1qag.*.pub.vufvuptyod.hydrogen18.com\": a wildcard DNS-1123 subdomain must start with '*.', followed by a valid DNS subdomain, which must consist of lower case alphanumeric characters, '-' or '.' and end with an alphanumeric character (e.g. '*.example.com', regex used for validation is '\\*\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')" lease=akash19dnhammcj3vf9dzgmtgg7pc8ujecn5azlzcu09/2470/1/1/akash1ls5wpjvaslysse33k0yyv0fh9lgc40744klv44 service=web expose="{Port:80 ExternalPort:80 Proto:TCP Service: Global:true Hosts:[]}"
Feb 17 18:13:10 ams0 akash[1745601]: E[2021-02-17|18:13:10.856] execution error                              module=provider-cluster cmp=service cmp=deployment-manager lease=akash19dnhammcj3vf9dzgmtgg7pc8ujecn5azlzcu09/2470/1/1/akash1ls5wpjvaslysse33k0yyv0fh9lgc40744klv44 manifest-group=westcoast state=deploy-active err="Ingress.extensions \"web\" is invalid: spec.rules[0].host: Invalid value: \"8uhrdv0kdpegf231vkrbiv1qag.*.pub.vufvuptyod.hydrogen18.com\": a wildcard DNS-1123 subdomain must start with '*.', followed by a valid DNS subdomain, which must consist of lower case alphanumeric characters, '-' or '.' and end with an alphanumeric character (e.g. '*.example.com', regex used for validation is '\\*\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"

This needs to be checked early and if it is invalid just bail

[boz]

come to think of it this is a spot that is using regexes that probably shouldn't.

[hydrogen18]

This only runs once on startup and not on data from the blockchain, so I think we should be OK to use a regex here.