Upgrading a huge software stack is always a big problem in a production environment. Too many services relying on the availability of the software stack. This problem is more frequent while upgrading OpenStack in production. Complete teams or companies are not able to work when the Cloud is not reachable and the downtime can cost thousands of dollars. Due to these problem and other risks, Clouds with OpenStack in production aren’t upgraded often. Operators don’t want to take the risk and stress every six months to keep their OpenStack environment up to date. Security patches get backported and new features from the newer releases are not needed. But then they need to upgrade over multiple releases which is not supported yet.
Customers and operators need a solution to how they can upgrade a cloud easily while skipping a release. This talk will give an overview about the whole problem and will also give a possible solution which will fit in most use cases.
The attendees should learn from our experience how they can easily
- Upgrade a cloud to the next OpenStack release
- Upgrade a cloud while skipping an OpenStack release
- Migrating to newer operating system release along with upgrading OpenStack
- Do’s and Dont’s while upgrading
This will purely be a technical talk.