Tag: Microsoft Azure
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Custom naming support for AKS node resource group available
When you deploy an Azure Kubernetes Service cluster in Azure a second resource group gets created for the worker nodes. Per default the resource group has the following naming schema MC_resourcegroupname_clustername_location. In most cases this naming schema collides with a naming convention already in place for the company’s Azure environment. A common question since AKS…
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Optimize build performance on Jenkins Azure worker nodes
Today we focus on some performance optimizations for the Jenkins worker nodes on Azure instead of security as in the last blog post. -> https://www.danielstechblog.io/secure-jenkins-worker-nodes-on-azure/ As you might know already each Azure VM gets an additional SSD-based temporary drive beside the OS disk drive. Per default the swap file is stored on this temporary drive,…
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AKS VMSS base image update script – multiple node pool support
At the beginning of September, I have published a blog post about how to update the base image of a VMSS-based AKS cluster. -> https://www.danielstechblog.io/updating-the-base-image-of-a-vmss-based-aks-cluster/ On LinkedIn I had a good discussion with one of the AKS PMs about that and I want to highlight two things first. The shell script I have written directly…
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Secure Jenkins worker nodes on Azure
Jenkins has two nifty plugins available to leverage the power of the Azure platform for on-demand worker nodes. -> Azure Container Instances -> Azure Virtual Machines In this blog post I want to quickly highlight to secure the access to Jenkins worker nodes running on Azure. The assumption is that your Jenkins CI master is…
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Updating the base image of a VMSS-based AKS cluster
Earlier this year I had written a blog post about updating the VMSS base image of an aks-engine cluster. -> https://www.danielstechblog.io/updating-the-base-image-of-an-vmss-aks-engine-cluster/ Today, we focus on Azure Kubernetes Service running with VMSS. Microsoft releases updates regularly to the AKS service and refreshes also the base image for the AKS worker nodes. -> https://github.com/azure/aks/releases This week I…
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Configuration options for CoreDNS in Azure Kubernetes Service
In my last blog post I have shown you the configuration of custom upstream nameservers for CoreDNS in AKS. -> https://www.danielstechblog.io/setting-custom-upstream-nameservers-for-coredns-in-azure-kubernetes-service/ But there are more configuration options available to customize your CoreDNS experience. We will focus at some of them today. First, let us have a look at the two options in the custom-coredns ConfigMap.…