Throughout the book, we have provided examples that illustrate how to work with Kubernetes. In developing these examples, we hit all the same issues you are likely to encounter, some of them confusing—and it isn't always clear how to determine what the problem is and how to resolve it so that the system works. This section will go through a number of the errors that you might see, discuss how to diagnose them, and provide you with some techniques to help you understand if you see these same issues yourself.
When you are writing your own manifests for Kubernetes and using them directly, it is very easy to make simple mistakes that result in the error message : error validating ....
These are fortunately very easy to understand, if terribly inconvenient. To illustrate this example, I created a slightly broken deployment manifest:
When running kubectl apply with this manifest, you will receive an error:
error: error validating "test.yml...
