OpenStack HA under the hood

Deep down in the murky depths of HA, the setup of our magnificent OpenStack environment is much diversified! It may come across as a bit biased to favor a given HA setup, but remember that, depending on which software clustering solution you feel more comfortable with, you can implement your HA OpenStack setup.

Let's shine the spotlight brightly on our first OpenStack design in Chapter 1, Designing OpenStack Cloud Architectural Consideration, and take a closer look at the pieces in the HA mode.

Next, we will move on to specific OpenStack core components and end up with exposing different possible topologies.

HA in the database

There's no doubt that behind any cluster lies a story! Creating your database in the HA mode in an OpenStack environment is not negotiable. We have set up MySQL in cloud controller nodes that can also be installed on separate ones. Most importantly, keep it safe not only from water, but also from fire. Many clustering techniques have been proposed...