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Kubernetes Cluster Migrations with Velero and Tanzu Mission Control
Hey folks! I ran into an interesting situation with a customer the other day. They are using Tanzu Mission Control (TMC) with their kubernetes clusters and are trying to migrate from EKS to Tanzu Kubernetes (TKG) Clusters. I’m going to totally ignore the relative merits of EKS vs TKG and go straight to the how of the migration. …
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Multi Cluster Service Mesh on TKG with Linkerd
Hey folks! Thanks for stopping by! Today I’m going to dive into using the linkerd service mesh to route traffic between 2 Tanzu Kubernetes Grid, or tkg, clusters. …
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Installing code-server in Kubernetes
Hey folks! I wanted to write a quick article today on getting started using code-server on kubernetes. Code-server is an open source project from the folks at Coder that makes it easy to run and manage a cloud based vscode instance that you can connect to and operate remotely. Installing it in kubernetes has some neat benefits like allowing you to develop your app alongside any versions of other services you want. If you’re following a strong gitops flow, it’s pretty straightforward to build a dev cluster that closely mirrors one of your production environments; that and it allows you to log into the same vscode instance from any device and location you want. …
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Initial Experience with the Helm 3 Alpha
Hey folks, I’ve been working with Helm3 since the alpha came out (some amount of time ago that I’m unwilling to lookup). It’s been a pretty good experience so far but I wanted to sketch out my experience to date. I may come back and update this later as I run into new issues. …
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Issuing Certificates with Cert-Manager and Let's Encrypt
I go out of my way to secure all my sites with a valid https certificate. I’m also fairly cheap, this left me with a dilemma and AWS’s certificate manager used to be my only option. It was handy but I was effectively stuck on AWS and had to use an Elastic Load Balancer, ELB, to terminate my TLS connections. Before we go too deep here if any of the terms I’m using are a little ambiguous I’d recommend checking out this article from symantec on the meaning of SSL, TLS, and https. The first section covers the definitions well enough that hopefully you feel comfortable with the difference between the terms. …
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Concourse in Kubernetes
Concourse is a handy tool for running build jobs or any other arbitrary code you want, otherwise known as a CI server. It has it’s own DSL, domain specific language, that you have to learn but it wasn’t too much of a burden for me to pick up. If you’re looking for some help getting started with concourse I recommend this delightful tutorial from the folks over at Starke & Wayne. …