Support application name with '.'

[vdice]

I have a Spin app with the name configured to example.com. When I attempt to deploy to Hippo, I am greeted with the following:

$ cat spin.toml | head -n1
name = "example.com"

$ spin deploy
Error: Error creating Hippo app called example.com: One or more validation errors occurred. {"Name": ["'Name' is not in the correct format."]}

Would it be possible to add support in Hippo for application names that include a '.' character?

Note: tested with spin 0.2.0 (60907c4 2022-06-10) and Hippo v0.15.1

[bacongobbler]

Yes. The only thing we want to ensure nothing breaks is with regards to the default domain. In Hippo, if a Channel is created with no domain name, the default domain name is channel_name.app_name.platform_domain. If you created an app with the name example.com with a platform domain of hippo.local.fermyon.link, then you could end up with a domain called staging.example.com.hippo.local.fermyon.link. Is that acceptable, or do we need to perform some santization?

Here's where the validation occurs:

hippo/src/Application/Apps/Commands/CreateAppCommandValidator.cs

Line 13 in c7d8427

private readonly Regex validName = new Regex("^[a-zA-Z0-9-_]*$");

[bacongobbler]

Perhaps a more realistic name could be fermyon.dev. An app with a “canary” channel could have the domain canary.fermyon.dev.fermyon.dev.