[Tackle-190] Set the host for the Ingress

[jonathanvila]

spec:
  tls:
    - {}

This means every call to any url on this cluster go to the service specified : https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.19/#ingresstls-v1-networking-k8s-io

This could affect having more than one tackle or even blocking future app deployments of 3rd party in that cluster as the wildcard would be already used by us, or even if the user already has the wildcard ingress ( not only tls ) created for other app could affect this tackle.