Hostname

Traditionally, the hostname is considered part of the network configuration. However, although closely related, Agama features a separate section for it.

At this point, it is possible to set the static and the transient hostnames.

{
  hostname: {
    "static": "myhost.example.lan",
    "transient": "installation.lan"
  }
}

To learn the difference between both hostnames, make sure to check the hostnamectl documentation. If you are in doubt, you most probably want to set (if any) the static hostname.