Tag "k8s"

What is Open Policy Agent (OPA) and OPA Gatekeeper

I finally caught up on our clusters to have a look at the replacement of the pod security policies which haven been deprecated and it's possible successor/replacement.

Posted October 7, 2022 by Adrian Wyssmann ‐ 8 min read

Migrate kubernetes volumes

We recently changed the storage backend of the clusters and hence introduced a new storage class. The question now is, how do we migrate the existing storage to use the new storage class?

Posted July 1, 2022 by Adrian Wyssmann ‐ 9 min read

What is Stackrox (Red Hat Advanced Cluster Security for Kubernetes)?

At my current employer we use a container security platform called Stackrox, which recently was acquired by RedHat. But that is it exactly and for what is it good?

Posted May 17, 2021 by Adrian Wyssmann ‐ 6 min read

Automated OS update with kured for servers running k8s

If you are running a bare-metal cluster you probably run kubernetes on top of some linux os, these systems have to be regularly updated. But an update means sometimes that you have to reboot your servers. This also means during a reboot that particular node is node available to schedule workload.

Posted April 20, 2021 by Adrian Wyssmann ‐ 6 min read