A note on resource usage

As most of the examples in this book utilize GCP or AWS, it can be costly to keep everything running. It's also easy to run out of resources using the default cluster size, especially if you keep every example running. Therefore, you may want to delete older pods, replication controllers, replica sets, and services periodically. You can also destroy the cluster and recreate it using Chapter 1, Introduction to Kubernetes, as a way to lower your cloud provider bill.