Chris Collins

1537 points

Ewa Beach, Hawaii

Chris Collins is an SRE at Red Hat and an OpenSource.com Correspondent with a passion for automation, container orchestration and the ecosystems around them, and likes to recreate enterprise-grade technology at home for fun. Prior to working at Red Hat, he spent thirteen years with Duke University, variously as a Linux systems administrator, web hosting architecture and team lead, and an automation engineer. In his free time, Chris enjoys Dwarf Fortress, brewing beer, woodworking, and being a general-purpose geek.

Open Source Champion People's Choice Award Author Comment Gardener DevOps Contributor Club

Authored Content

Manage multiple versions of Go with GVM

Keep multiple Go environments, including versions and modules, with Go Version Manager for easy GOPATH management.

An Introduction to Kubernetes Secrets and ConfigMaps

Kubernetes Secrets and ConfigMaps separate the configuration of individual container instances from the container image, reducing overhead and adding flexibility.

3 mistakes to avoid when learning to code in Python

Creating a Source-to-Image build pipeline in OKD

S2I is an ideal way to build and compile Go applications in a repeatable way, and it just gets better when paired with OKD BuildConfigs.

Testing a Go-based S2I builder image

In the third article in this series on Source-to-Image for Golang applications, build your application image and take it out for a spin.

Designing a Source-to-Image build for a Go application

In the second article in this series on S2I for Golang, learn how to prepare an environment specifically for a Go application.

How Kubernetes is helping Docker blossom

Getting started with Source-to-Image for building container images

S2I makes it easy to reproduce consistent container images so developers can focus on applications, not how to deploy them.

Authored Comments

clcollins

11 Jun 2020

Build a Kubernetes cluster with the Raspberry Pi

You should be able to curl the ClusterIP from the master with no problem. I'm not sure why you are not able to. I verified it on the cluster I used to write this article, and it worked without issue. Any chance it might be a routing issue? Maybe an IP conflict with the ClusterIP?

clcollins

9 Jun 2020

Build a Kubernetes cluster with the Raspberry Pi

I definitely want to get a bunch of the 8GB models now. There's certain workloads that need more than 4 gigabytes of RAM sometimes, and you just can't run those on a cluster if none of the nodes have 4 gigabytes to begin with!

The Raspberry Pi's are perfect for playing around with a kubernetes cluster at home. They're so inexpensive, and well supported. It's easy to get a number of them and replicate how kubernetes would be deployed in a production environment.