Use custom machine names for ingress and egress proxies

Cluster ingress and egress proxies support overriding the hostname they announce while registering with Tailscale. For Service, you can set a custom hostname using a tailscale.com/hostname annotation. For Ingress, you can set a custom hostname using the .spec.tls.hosts field. Only the first value will be used.

This only sets a custom operating system (OS) hostname reported by the device. The actual machine name will differ if a device is on the network with the same name.

Machine names are subject to the constraints of DNS. They can be up to 63 characters long, must start and end with a letter, and consist of only letters, numbers, and -.