The topic of monitoring happens to be something I hold very close to my heart. I have spent years 'watching' many organizations, websites, and applications to ensure that their availability holds as close as possible to 99.99% uptime. This task was not for the meek of heart in any realm of things. The thing that got me through it all was having a solid method to monitor the environments, which did not require me to literally watch them every second of the day. In this chapter, we will go through some of the most common approaches to check the health of your OpenStack cloud.
Since we have been experimenting with the OpenStack Ansible (OSA) deployment method throughout the book, let's continue to leverage the built-in Ansible capabilities part of OSA to perform various system checks. Remember, what we do here should not replace any third-party monitoring tool that most likely will do a better job at keeping the tasks to be monitored in a reliable rotation...