4cf5ece64b
First cut at implementing host maintenance (aka host evacuation). This allows zero-downtime upgrades of the hosts by moving VMs off of to another host to carry out hypervisor upgrades. A number of issues have been addressed in this changeset: - improved the semantic of update operation on hosts (as per dabo comment) - refactored host-related operations into a separate class in to improve readability/maintainability - refactored test_hosts to reduce duplicated code - added first stub of host-maintenance operation Change-Id: I933f7cb8736e56c9ecea5255936d8826ef6decec
The Choose Your Own Adventure README for Nova
You have come across a cloud computing fabric controller. It has identified itself as "Nova." It is apparent that it maintains compatibility with the popular Amazon EC2 and S3 APIs.
To monitor it from a distance: follow @openstack on twitter.
To tame it for use in your own cloud: read http://docs.openstack.org
To study its anatomy: read http://nova.openstack.org
To dissect it in detail: visit http://github.com/openstack/nova
To taunt it with its weaknesses: use http://bugs.launchpad.net/nova
To watch it: http://jenkins.openstack.org
To hack at it: read HACKING
To cry over its pylint problems: http://jenkins.openstack.org/job/nova-pylint/violations