Month: March 2020
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Terraform – Upgrading AKS Kubernetes version does not upgrade node pools
If you experience during an AKS Kubernetes version upgrade that only the control plane got upgraded, you are certainly using the Terraform Azure provider in version 1.40.0 or higher. -> https://github.com/terraform-providers/terraform-provider-azurerm/issues/5541 A current workaround is a null_resource with a trigger on the Kubernetes version and running a Bash script with the local-exec provisioner. So, you…
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High available control plane with Istio 1.5 on Azure Kubernetes Service
Back in January I have written a blog post about installing the Istio control plane on AKS in HA mode. -> https://www.danielstechblog.io/install-a-high-available-istio-control-plane-on-azure-kubernetes-service/ Since the release of Istio 1.5 this month the overall architecture of the Istio control plane has changed. -> https://istio.io/news/releases/1.5.x/announcing-1.5/#introducing-istiod With the introduction of Istiod the number of deployed pods get dramatically reduced,…
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Install Homebrew for Linux in Azure Cloud Shell
As macOS user you properly know Homebrew the package manager and you might know that you can install it also on Linux. The Azure Cloud Shell is based on an Ubuntu image, but has some special requirements where to store data that should be persisted throughout your sessions. -> https://docs.microsoft.com/en-us/azure/cloud-shell/persisting-shell-storage#how-cloud-shell-storage-works Therefore, we cannot use the…
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Using the Powerlevel10k theme in Azure Cloud Shell
Last year I have written a blog post about setting up the Zsh with Oh My Zsh in Azure Cloud Shell. -> https://www.danielstechblog.io/setting-up-zsh-with-oh-my-zsh-in-azure-cloud-shell/ Recently, I switched to the Powerlevel10k theme and ran through the setup wizard to generate a configuration with a lean prompt style. -> https://github.com/romkatv/powerlevel10k Before, I used the robbyrussel theme for my…