Allow adding custom domains to Auto DevOps apps
We provide a default app URL based on the base domain, but people may want to add custom domains in addition to the default app URL. For example, they might want to have their app URL unrelated to the project name. Or they want a different base name, but don't want their review apps and other apps sharing that base domain. They may be able to add these extra ingress routes manually using Kubernetes, but that might not actually stick, given how we manipulate objects. And even if it's not technically required, we can probably make it easier.
Edited by Mark Pundsack