Articles by Toni Schmidbauer
Stumbling into Azure Part I: Building a site-to-site VPN tunnel for testing
Toni Schmidbauer
So we want to play with ARO (Azure Red Hat OpenShift) private clusters. A private cluster is not reachable from the internet (surprise) and is only reachable via a VPN tunnel from other networks.
This blog post describes how we created a site-to-site VPN between a Hetzner dedicated server running multiple VM's via libvirt and Azure.
An upcoming blog post is going to cover the setup of the private ARO cluster.
Stumbling into Quay: Upgrading from 3.3 to 3.4 with the quay-operator
We had the task of answering various questions related to upgrading Red Hat Quay 3.3 to 3.4 and to 3.5 with the help of the quay-operator.
Thankfully (sic!) everything changed in regards to the Quay operator between Quay 3.3 and Quay 3.4.
So this is a brain dump of the things to consider.
Operator changes
With Quay 3.4 the operator was completely reworked and it basically changed from opinionated to very opinionated. The upgrade works quite well but you have to be aware about the following points:
Ansible Tower and downloading collections
Every wondered why Ansible Tower does not start downloading required collections when you synchronize a project? Here are the stumbling blocks we discovered so far:
Understanding RWO block device handling in OpenShift
In this blog post we would like to explore OpenShift / Kubernetes block device handling. We try to answer the following questions:
What happens if multiple pods try to access the same block device?
What happens if we scale a deployment using block devices to more than one replica?
Basic usage of git
This is a very short and hopefully simple introduction on how to use Git when you would like to contribute to projects hosted on github.com. The same workflow should also work for projects on gitlab.com.
Red Hat Satellite Cheat Sheet
Cheat sheet for various Red Hat Satellite tasks from a newbie to a newbie.
Helpful oc / kubectl commands
This is a list of useful oc and/or kubectl commands so they won’t be forgotton. No this is not a joke…
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