Tag Archives: Kubernetes

Troubleshooting Azure Kubernetes Service tunnel component issues

In Azure Kubernetes Service Microsoft manages the AKS control plane (Kubernetes API server, scheduler, etcd, etc.) for you. The AKS control plane interacts with the AKS nodes in your subscription via a secure connection that is established through the tunnelfront / aks-link component. -> https://docs.microsoft.com/en-us/azure/aks/concepts-clusters-workloads#kubernetes-cluster-architecture As Read more [...]

Automate taking backups from Azure disks attached to Azure Kubernetes Service

At the beginning of 2019 I wrote a blog post about taking backups from Azure disks attached to an Azure Kubernetes Service cluster. -> https://www.danielstechblog.io/taking-backups-from-azure-disks-attached-to-aks-via-azure-automation/ Since then, some things changed. Azure Function PowerShell support went into public preview in April 2019 and the AzTable (AzureRmStorageTable) module I use Read more [...]

Azure Policy for Azure Kubernetes Service

In June I already covered Azure Policy for Kubernetes in a blog post. -> https://www.danielstechblog.io/using-azure-policy-for-kubernetes/ Back then Azure Policy for AKS was in public preview. At this year’s Microsoft Ignite Azure Policy for AKS went GA. -> https://azure.microsoft.com/en-us/updates/ga-policy-addon-for-azure-kubernetes-service/ There have been some significant changes Read more [...]

Azure Kubernetes Service – Microsoft Ignite announcements

At this year’s first digital Microsoft Ignite conference Microsoft announced several GA and preview features for its Azure Kubernetes Service. GA: Azure Policy add-on for AKS GA: Ubuntu 18.04 as new base image GA: Mutate default storage class Preview: Azure RBAC for Kubernetes authorization Preview: AKS cluster start/stop feature Preview: Kubernetes 1.19 support Preview: New Read more [...]

Using distroless images in Istio on Azure Kubernetes Service

Looking at Docker Hub Istio provides the option using distroless images since version 1.3.0. As it is always a good idea on a Kubernetes cluster to reduce the attack surface, especially when running a managed Kubernetes cluster like Azure Kubernetes Service, using distroless images is one option of it. Per default Istio does not use the distroless image versions. So, you need to opt in for Read more [...]

ARM Template – Deploy an AKS cluster using managed identity and managed Azure AD integration

As I mentioned in my other blog post before I have updated my Azure Resource Manager template as well. Switching from the AAD service principal to managed identity option and from the AAD v1 integration to AAD v2 which is also managed. Other changes and improvements are the following ones: Private cluster support Managed control plane SKU tier support Windows node pool support Node Read more [...]

Terraform – Deploy an AKS cluster using managed identity and managed Azure AD integration

Recently, I updated my Terraform AKS module switching from the AAD service principal to managed identity option as well from the AAD v1 integration to AAD v2 which is also managed. Other changes and improvements are the following ones: Private cluster support Managed control plane SKU tier support Windows node pool support Node labels support addon_profile section parameterized -> Read more [...]

Running Istio on KinD – Kubernetes in Docker

In my last blog post I have shown you my local Kubernetes setup with KinD. I mentioned also Istio and today we walk through the configuration to get it running on Kubernetes in Docker. As prerequisite I recommend reading my previous blog post before you continue with this one. -> https://www.danielstechblog.io/local-kubernetes-setup-with-kind/ I made a configuration decision for KinD Read more [...]

Local Kubernetes setup with KinD

Getting started with Kubernetes these days is easy and does not require to be in the lucky position having access to a cloud provider subscription for playing around with managed Kubernetes like AKS, EKS or GKE. All you need is your local machine. But then you must choose which one of the available offerings you would like to use: minikube, Docker Desktop, MicroK8s, k3s/k3d or KinD? Today Read more [...]

Upgrading the node image of an Azure Kubernetes Service cluster

Last year I have written a shell script to update the VMSS base image of an Azure Kubernetes Service cluster. -> https://www.danielstechblog.io/updating-the-base-image-of-a-vmss-based-aks-cluster/ -> https://www.danielstechblog.io/aks-vmss-base-image-update-script-multiple-node-pool-support/ As I am using the VMSS API and not the AKS API it was not an officially supported way to update Read more [...]