Hacker’s Guide to Installing OpenShift Container Platform 3.11

Hacker’s Guide to Installing OpenShift Container Platform 3.11

Background My problem, like most technologists, is that I only have a slice of my time to dedicate toward acquiring and maintaining knowledge about any given technology, product, project, tool, platform, etc. Split that with the fact that almost every CIO is preaching that we, as technologists, need to be closer to the business, and

Rootless Podman on PowerPC (That’s a Mouthful)

Rootless Podman on PowerPC (That’s a Mouthful)

Background I was thinking about naming this article the POWER of Podman, or Podman on Power or Power Man or…but I digress. Confession, it’s been a long time since I played with a POWER system. The last time I did it, it was difficult to get Linux booted up. Now days, with Red Hat Virtualization,

Learning Container Engines by Demo

Learning Container Engines by Demo

Background So, this morning I had a call with some customers who are using Podman in RHEL 7.6 Beta. We got into a pretty good discussion about what a container engine does. Many people have tackled this subject before РLiz Rice has a great talk where she builds a container engine from scratch. I loved

Hardware 1.0 vs. Hardware 2.0

Hardware 1.0 vs. Hardware 2.0

I’ve seen a lot negative reactions to the terms multi cloud and hybrid cloud. I would argue, that’s because we are framing it wrong. It’s really Hardware 1.0 and Hardware 2.0. In Hardware 1.0 Dell, IBM and HP all tried to sell us fairly similar servers. We typically bought these servers, but we could finance

Recap of Container Talks at DevConf US

Recap of Container Talks at DevConf US

This past weekend, I had the pleasure of attending the first ever DevConf US 2018, which is the 1st annual, free, Red Hat sponsored technology conference for community project and professional contributors to Free and Open Source technologies at the Boston University in the historic city of Boston, USA. This was a technical conference in

So, What Does a Container Engine Really Do Anyway?

So, What Does a Container Engine Really Do Anyway?

It only takes a couple of quick google searches to realize that people have no idea what a container engine is. That’s understandable because It was a completely new concept back in 2013. Plenty of good people have tried and failed – see WTF is a Container¬†(not deep enough) or What is Docker and why

What is CRICTL and Why Should You Care?

What is CRICTL and Why Should You Care?

Container Engines are like wheel bearings, you should be able to replace them when they stop working. Also, you shouldn’t have to care about what brand they are. That’s what the Kubernetes Container Runtime Interface (CRI) aims to solve. CRI defines the API used to talk to container engines and all the major container engines

What is sVirt and How Does it Isolate Linux Containers?

What is sVirt and How Does it Isolate Linux Containers?

Background What is sVirt and, why does it matter for your containers? The short answer is, because sVirt is another layer of security and defense in depth is a good approach to security. The longer answer is, sVirt dynamically generates an SELinux label for every single one of your containers, which makes them less likely

Competition Heats Up Between CRI-O and containerd – Actually, That’s Not a Thing…

Competition Heats Up Between CRI-O and containerd – Actually, That’s Not a Thing…

Are you looking at CRI-O vs. contianerd and wondering to yourself, which one should I use? If you are…. DON’T – that’s not actually something you should be thinking about. Here’s why…. When it comes to containers there are a ton of APIs in the ecosystem. Different users, community projects and commercial products have made

Is OpenShift a Fork of Kubernetes? Short Answer – No. Longer Answer – Here’s a Ton of Technical Reasons.

Is OpenShift a Fork of Kubernetes? Short Answer – No. Longer Answer – Here’s a Ton of Technical Reasons.

When I answer technical questions, I try to treat people with respect. I assume that people are smart and know how to make good decisions if they have the right information. I try to give them facts, so that the architect part of their brain has the information it needs to make good decisions and