problem with juju on Ubuntu Openstack - Canonical Distribution
Solution 1:
This step has been resolved extended the bootstrap-timeout to 3600 in the last upgrade of Ubuntu Openstack - Canonical Distribution. To make that run the following commands
sudo apt-get update
sudo apt-get dist-upgrade
See this link https://github.com/Ubuntu-Solutions-Engineering/openstack-installer/issues/280#event-204277001
With this solution the installer, in my lab, has continued with the procedure.