I just took a quick look at the API docs - and while it doesn't look like you can mess with the firewall rules settings, everything else should be possible (get metric data, start/stop/reboot/delete instance, etc).
I just took a quick look at the API docs - and while it doesn't look like you can mess with the firewall rules settings, everything else should be possible (get metric data, start/stop/reboot/delete instance, etc).