I’m trying to get this working as well, I’ve jumped straight to CoreOS but am not having any luck. Did you get it working with CoreOS? I followed your instructions to install xscontainer. I also tried the xscontainer-prepare-vm but I get an error related to login, I believe it’s related to creating an SSH key for the CoreOS VM. In creating a CoreOS VM, I never see the Cloud Config panel as described in https://xen-orchestra.com/blog/docker-support-in-xenserver-the-ultimate-guide/
Thanks for any help.