In this chapter, we have taken our AWS to the next level by creating and launching a highly available WordPress installation. By leveraging the various services offered by AWS, we engineered out any single points of failure with regards to the availability of instances and availability zones.
We also built logic into our playbook so that we can use the same command to launch a new deployment or update the operating system on an existing one with a rolling deploy of new instance AMIs that contain our updated packages—allowing for zero downtime during deployment.
While the WordPress deployment is probably as simple as we could make it, the process of deploying the production-ready images would remain similar when using a more complicated application.
In our next chapter, we are going to look at moving from public cloud to private cloud, and how Ansible interacts with...