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Azure Kubernetes Service cluster autoscaler configurations
Currently you have two options on Azure Kubernetes Service to run the cluster autoscaler. The first one is the integrated solution on the managed master control plane side. This one is in preview and only available when using the AKS VMSS preview. You can configure AKS during the creation process to use the cluster autoscaler…
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Updating the base image of an VMSS aks-engine cluster
In mid-February was a CVE for runc published and immediately patched on the major cloud provider platforms. -> https://seclists.org/oss-sec/2019/q1/119 -> https://kubernetes.io/blog/2019/02/11/runc-and-cve-2019-5736/ -> https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5736 As an example if you were running an Azure Kubernetes Service cluster with Kubernetes version 1.12.4, you just needed to upgrade the cluster to version 1.12.5 to have all agent nodes patched…
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Taking backups from Azure Files attached to AKS via Azure Backup
In one of my last articles I showed you how to automate the backup process for Azure Disks attached to AKS. -> https://www.danielstechblog.io/taking-backups-from-azure-disks-attached-to-aks-via-azure-automation/ Today we look at the process for the second natively supported Azure storage option in Kubernetes on Azure, Azure Files. The good news is that we can use Azure Backup with its…
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Running Azure Functions on Kubernetes like on Azure in the consumption plan
Azure Functions 2.0 introduced the capability to run Functions in a container. So, you have the choice to run your Functions natively on Azure in the consumption plan for automated massive scale or in a container on your Azure Kubernetes Service or Kubernetes cluster. But how you configure automated scaling for a Functions application in…
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Taking backups from Azure Disks attached to AKS via Azure Automation
When you followed the Azure docs on how to dynamically create Azure Disks via a Kubernetes PVC, you saw the instructions to create a backup of the disk. Snapshots are leveraged for this. But it is a manual task you must accomplish. -> https://docs.microsoft.com/en-us/azure/aks/azure-disks-dynamic-pv#back-up-a-persistent-volume It would be nice to have an automated solution which also…
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Stream Analytics on IoT Edge – deployment changes
Microsoft released the GA version of Stream Analytics on IoT Edge two weeks ago. -> https://azure.microsoft.com/en-us/blog/azure-stream-analytics-on-iot-edge-now-generally-available/ Beside the changes with the GA version one is most important. When you deploy the Stream Analytics container onto an edge device you must provide the plan id as an environment variable. The plan id is needed for billing…