Featured / February 24, 2021

Deploying an ingress controller to an internal virtual network and fronted by an Azure Application Gateway with WAF

There are many ways to add a Web Application Firewall (WAF) in front of applications hosted on Azure Kubernetes Service (AKS). In this post, we’ll cover how to set-up an NGINX ingress controller on AKS, then create an Azure Application Gateway to front the traffic from a Public IP, terminate TLS, then forward traffic to the NGINX ingress controller listening on a Private IP, unencrypted.

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Featured / January 29, 2021

Migrating apps from one AKS cluster to another using Velero

Assuming you already set-up Velero on your primary cluster, you can restore all the configuration and applications in a similar cluster using Velero. This can be really useful for scenarios where you want to test dangerous changes without impacting app dev teams using a cluster.

I recently had this scenario where I wanted to experiment with far fetched ideas on a cluster. However, I needed to use all the existing configurations. Because I was not using GitOps or extensive re-hydration CI/CD pipelines, I was able to use Velero to restore my Kubernetes configuration onto a new 1-node “sandbox” cluster.

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Featured / January 23, 2021

Building a Kubernetes cluster on Raspberry Pis with a little Azure

Recently I finished something I’ve been wanting to do for a long time: creating a Kubernetes cluster running on some Raspberry Pis. I mostly followed a recent post from Alex Ellis. So, this post will build on that and speak about my experience with the bill of materials, some kinks, and how to save some time.

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