I am a technology tinkerer who gets sidetracked by shiny things. There tend to be themes to my tinkering… Infrastructure, OS, Kubernetes, Containerization, Go and Single Board Computers are only a few of the many ramblings you just may find on here.
Recent Articles
OpenShift Virtualization and Resource Overcommitment
As OpenShift Virtualization continues to gain attention and attract new users in the field, certain topics come up over and over again:
- How do I overcommit CPU?
- How do I overcommit Memory??
- How do I make sure my overcommiting doesn’t have adverse reactions to my VMs?
Manually moving a Virtual Machine from VMware to OpenShift Virtualization
When it comes to migrating VMs from VMware to OpenShift Virtualization, the Migration Toolkit for Virtualization (MTV) is the easiest option. But what happens if you want to move an unsupported OS over to OpenShift Virtualization? Can this even be done? The short answer is “Yes”, and the longer answer is “It depends on the OS you want to move.”
Installing OpenShift using Windows Subsystem for Linux
With interest in OpenShift and more specifically OpenShift Virtualization taking off, users who do not typically use Linux have a need for a Linux workstation in-order to deploy OpenShift. While the oc command used to manage OpenShift does work on Windows other utilities such as the openshift-install command used to deploy OpenShift clusters does not. So whats a Windows using future OpenShift administrator supposed to do?
Creating a storage network in OpenShift.
As my usage of OpenShift Virtualization increases, I am finding that I need to create a dedicated network for my storage arrays. For my lab storage I use two Synology devices, both are configured with NFS and iSCSI, and I use these storage types interchangeably. However in the current configuration, all storage traffic (NFS or iSCSI) is routed over two hops, and comes into the server over a 1Gb interface. I would like to change this to work similar to my vSphere lab setup, where all storage traffic goes over my dedicated network “vlan20”, which is not routed, and has a dedicated 10Gb switch.