I encountered the same problem. When you change the hostname to something else and re run "sunbeam cluster bootstrap --accept-defaults" it works. Surely this is not an explanation to the bug but it can be assumed as a workaround.
For example:
cat /etc/hostname is: oldone
hostname -f output is: oldone.oldopenstacknetwork
@JamesLin
I encountered the same problem. When you change the hostname to something else and re run "sunbeam cluster bootstrap --accept-defaults" it works. Surely this is not an explanation to the bug but it can be assumed as a workaround.
For example: oldopenstacknet work
cat /etc/hostname is: oldone
hostname -f output is: oldone.