Try to fix osds being recreated whereas not needed
Fix syntax error
Use 2 host-only nics

Can't use the NAT nic to talk to another VM
Add more notifications

And fix some indentation
Un-duplicate a notify
Re-add --osd-uuid option to ceph-osd --mkfs
Get cluster_addr / public_addr from parameters
Restart service when config file changed
Fix typo
Some fixes to the example provisionning script