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

OpenStack Summit 2018: Vancouver: Linux Container Internals

OpenStack Summit 2018: Vancouver: Linux Container Internals

This presentation is a 16 slide introduction to what must be thought about when building a production cloud. Proper image management is critical engineering task.

Red Hat Summit 2018: San Francisco: Building Production Ready Containers

Red Hat Summit 2018: San Francisco: Building Production Ready Containers

This presentation is a 16 slide introduction to what must be thought about when building a production cloud. Proper image management is critical engineering task.

Hacker’s Guide to Installing OpenShift Container Platform 3.9

Hacker’s Guide to Installing OpenShift Container Platform 3.9

  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,

Kubernetes is a 10 Ton Dump Truck That Handles Pretty Well at 200 MPH

Kubernetes is a 10 Ton Dump Truck That Handles Pretty Well at 200 MPH

Recently, I read another article that critiqued Kubernetes as having a steep learning curve. At conferences, I also hear a lot of people in the Kubernetes community talk about how we need to make it more easy to onboard people. While I think it’s a noble goal to make Kubernetes more usable, I don’t think

Container Portability: Part 3

Container Portability: Part 3

The Paths Forward In Container Portability: Part2: Code Portability Today, we discussed how there are no regression tests, there is no complete interface standard, there is definitely pain ahead if we think we can use today’s container images (level 3B) on tomorrow’s container hosts (level 3A), 10 years from now. So, what’s the solution? With

Container Portability: Part 2

Container Portability: Part 2

Code Portability Today In Container Portability: Part 1: A Brief History in Code Portability, we explored the genesis of code portability and visited structured computer organization to highlight the six commonly found levels in modern computing. Revisiting the six layers – nobody debates the portability of the upper two layers – Application Programmers know that C