Hands-on with Kubernetes Pod Security Policies
Kubernetes Pod Security Policies allow you to control the security specifications that pods must adhere to in order to run in your cluster. You can block users from deploying inherently insecure pods either intentionally or unintentionally. This sounds like a great feature and a security best practice and can be a big step toward keeping your cluster free of insecure resources.
However, some pods may require additional security permissions beyond what most cluster users are allowed to deploy. For example, monitoring or metrics tooling may need host network access or may need to run in privileged mode. Also, you may need to allow developers to run applications with additional capabilities during early development stages just to make progress.
How hard is it to use Pod Security Policies to judiciously secure your cluster? We’ll look at that in this blog post.
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