Reading Time: 4 minutes The other day someone reached out to me via LinkedIn and asked is it possible to have a Kubernetes deployment deploy on to an Azure Kubernetes Service (AKS) node pool first and when the node pool is full burst to Azure Container Instances (ACI), or virtual nodes in AKS. Looking Read more…
Reading Time: 5 minutes Recently I have been going through the AKS-Preview az cli extension and found reference to a GitOps AKS addon. I have been waiting for something like this to come to AKS for a long time. In fact, it is already available for ARC enabled Kubernetes clusters. Below I will go Read more…
Reading Time: 4 minutes If like me, you have been working with Azure Kubernetes Service (AKS) or any Kubernetes cluster and want to assign a DNS record to an ingress resource you must manually do it or script something using Azure CLI. Yes, I have done this, and it sort of works. But now Read more…
Reading Time: 3 minutes If you have been following along with my blog, you may have come across some previous posts about updating Azure Kubernetes Service (AKS). One (https://pixelrobots.co.uk/2019/05/apply-os-updates-to-aks-nodes-without-an-upgrade/) talked about kured (KUbernetes REboot Daemon) by weaveworks https://github.com/weaveworks/kured. The issue with this method is it only supported Linux Kubernetes nodes. So, your windows Kubernetes Read more…
Reading Time: 4 minutes Did you know that even when you have enabled Azure AD integration with your AKS cluster, a subscription Owner and Contributor can still access you AKS cluster with the -admin switch? In fact, anyone who is a member of the Azure Kubernetes Service Cluster Admin Role (https://docs.microsoft.com/en-us/azure/role-based-access-control/built-in-roles#azure-kubernetes-service-cluster-admin-role) can. You were Read more…
Reading Time: 3 minutes When working with Kubernetes and secrets in particular you will know that they are not secure by default. In fact, they are just base64 encoded strings which can be easily decoded. You can use other tools to keep your secrets safe and then allow Kubernetes to access them. In this Read more…
Reading Time: 3 minutes Sometimes you have an application that needs to scale super-fast, so fast that you can’t wait for a new Kubernetes node to spin up before your pods can be scheduled. Azure Kubernetes Service has a cluster auto scaler which can be enabled on cluster build or added after. This is awesome, Read more…
Reading Time: 7 minutes I am currently studying for the Certified Kubernetes Administrator exam (CKA) and as a hands on learning I wanted to get down and dirty with Kubernetes. In my day job I work a lot with Azure Kubernetes Service (AKS) and I would say I am very comfortable with AKS and Read more…
Reading Time: 2 minutes At Microsoft Ignite (March 2021) the AKS team announced maintenance windows are now in public preview. But for some reason they release no docs relating to it, just an arm snippet. So, I decided to do some digging. First, I looked for the aks-preview az cli extension on GitHub to Read more…
Reading Time: < 1 minute I have been working on a nice simple cheat sheet to help troubleshoot issues with your Kubernetes objects. It will hopefully help you know what commands to use and when. You can find an image of it below and a link to a pdf download. Let me know what you Read more…