Comment 1 for bug 1491594

I'm not sure I'm following you, but usually I allocate sticky IP addresses for physical nodes from outside of static pool. Juju bootstrap is not the only one to acquire IP address from static pool. Juju's feature "address-allocation" which is currently under development also consumes IP addresses from static pool.

If I have 10.0.0.0/24 network, usually I allocate like below to assign desired IP address for physical nodes:
10.0.0.2-10.0.0.100: sticky IP address for physical nodes
10.0.0.101-10.0.0.120: static pool for Juju bootstrap
10.0.0.121-10.0.0.240: dynamic pool