What sysadmins want to know about OpenShift and Kubernetes in 2022

Another year has gone by, and what a year it's been! We've had tons of news in the Kubernetes and OpenShift world, and an increasing number of companies are adopting this technology, which is dominating the container-orchestration market.

Last year, I wrote an article about 2021's OpenShift and Kubernetes highlights, and guess what: This is the list for the year 2022! Once again, the Enable Sysadmin community did not fail to contribute their diverse and expert knowledge.

Have fun with this selection of Enable Sysadmin's top articles of 2022 about Kubernetes and OpenShift Container Platform (OCP).

Top 10 Kubernetes and OpenShift articles of 2022

Shveta Sachdeva started the first quarter of the year explaining what you can do when "the process to delete Kubernetes namespaces gets hung up, and the command never completes" in How to fix Kubernetes namespaces stuck in the terminating state.

Do you want to "go beyond OpenShift's default options to set up custom role-based access control (RBAC) permissions for local and cluster roles"? Check out How to customize OpenShift roles for RBAC permissions by Robert Kimani.

Anthony Critelli took us "through different layers of the Kubernetes network stack to see how containers, pods, and nodes communicate" in Kubernetes network stack fundamentals: How containers inside a pod communicate.

Read more from Anthony Critelli in Kubernetes network stack fundamentals: How pods on different nodes communicate. In this article, you can "learn how pods communicate with each other when they are on different Kubernetes nodes."

MicroShift is a Red Hat-led open source community project that optimizes Kubernetes for small form factor and edge computing. It's also the basis for the new supported product Red Hat Device Edge. You can try out the community release on your local machine with the help of the article How to deploy MicroShift on your laptop quickly by Jose Antonio Gonzalez Prada.

If you need to "learn how to change a default security context constraint (SCC) in OpenShift to manage permissions within a cluster," Robert Kimani helps you in his article How to fix permission errors in pods using service accounts.

"Kubernetes YAML gives Podman a unified solution to declare container workloads across environments and simplify complexity for developers and sysadmins," write Valentin Rothberg, Preethi Thomas, and Dan Walsh in How to run Kubernetes workloads in systemd with Podman. Give it a read!

The next time something is behaving unexpectedly in Kubernetes, Satyajit Das' artice Kubernetes troubleshooting: 6 ways to find and fix issues may be able to help you.

"Learn about Kubernetes operators and when you should use them—and when you shouldn't" in Introduction to Kubernetes operators for sysadmins by Manna Kong and Soundharya Pabba.

And to close out 2022's list, Manna Kong and Soundharya Pabba explain the Kubernetes Operator Framework, "an open source toolkit that manages Kubernetes operators in an effective, automated, and scalable way" in How to create a Kubernetes operator.

Wrap up

Once again, we had a year full of knowledge and news, and it is always a pleasure to share this selection of articles by the members of our community. I hope you enjoy it as much as I do.

Also, consider sharing your own knowledge by writing for Enable Sysadmin. Join our community and continue the tradition of knowledge sharing that makes the Linux ecosystem great.

We'll see you next year with another top articles list!