Destroying Cluster Zones
Explore how destroying nodes in a Kubernetes cluster can lead to critical issues. Understand the importance of using Cluster Autoscaler and running regional clusters that span multiple zones to ensure fault tolerance and scalability. This lesson prepares you to build more resilient clusters by simulating zone failures and managing node resources effectively.
We'll cover the following...
Assignment
As I mentioned before, nothing happens if we destroy only one out of three nodes (again, ignoring the DB). But, if we continue destroying nodes, bad things could happen.
Here comes yet another assignment: Figure out what would happen if we destroy a whole data center.
Critical issues with our clusters
There are at least two critical things that we didn’t do in the previous section, but we should.
Not using Cluster Autoscaler
First of all, we should have created our Kubernetes cluster with Cluster Autoscaler so that it automatically scales ...