Hey everyone! I'm currently an intern in DevOps, and I've been assigned to implement NetworkPolicies for the existing namespaces and applications in our Kubernetes cluster. I'm feeling a bit overwhelmed since I'm not entirely sure how to approach this given that the cluster is already running. I'd love to hear any recommendations, best practices, or steps that could help me roll this out safely. Any advice would be greatly appreciated!
1 Answer
When it comes to creating NetworkPolicies, it's vital to start with a discussion involving your security and compliance teams. They usually determine the overarching rules—like which namespaces can communicate with each other or if internet access should be restricted unless specifically whitelisted. On the other hand, don't forget to consult with application owners or developers since they'll know what services truly need to interact, such as how the frontend connects to the backend and database. So before diving in, make sure to gather input from those involved more closely with the apps and systems.
Thanks for the tip! I actually work at a small startup, and my manager asked me to devise a strategy for a setup that currently has no NetworkPolicies at all.