On all distributions, you need to perform some final tasks to complete the upgrade process.
Decrease DHCP timeouts by modifying
/etc/nova/nova.conf on the compute nodes back
to the original value for your environment.
Update all of the .ini files to match
passwords and pipelines as required for Havana in your
environment.
After a migration, your users will see different results from
nova image-list and
glance image-list unless
you match up policies for access to private images. To do so,
edit /etc/glance/policy.json and
/etc/nova/policy.json to contain
"context_is_admin": "role:admin", which limits
access to private images for projects.
Thoroughly test the environment, and then let your users know that their cloud is running normally again.
