Issue: In my Azure Kubernetes Service cluster, the horizontal pod autoscaler is not working due to resource cpu on pods is unknown. Horizontal Pod Autoscaling increases (and decreases) the number of replicas (or pods) on deployments based on cpu usage. I have come across this issue a number of times when setting up HPA. HPA …
Continue reading Azure Kubernetes Service Horizontal Pod Autoscaling Issue Resolution
Being organized and being able to search and browse for azure resources is key to being productive in managing your azure infrastructure. I believe a pragmatic naming convention should be Descriptive enough to know what the resource is in the context of the infrastructureEasy to remember and follow.Well adopted by other cloud team members.Need to …
Continue reading Pragmatic Guide to Azure Resource Naming Conventions
The following is a bash script with a set of Azure CLI commands to build an cost efficient Azure Kubernetes Environment to host a public facing web application. This is suitable for beginners or a simple development environment for your project. And demonstrates my recommended setup with both Azure cloud resources and the Open Source …
Background You have a Windows 10 environment with WSL installed and are using a Ubuntu distribution. You forgot the password that was setup when you first setup Ubuntu. You need the password when you install software such as when doing apt install <software>. So here's how: Open windows command prompt. wsl --user root 2. Change …
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I will demonstrate how to copy a VM to a different region and a different subnet. For some background, this is not a trivial task at first thought. So how about move/copy VM to a region from Canada Central to East US? There are a few ways, but I will show how to do with …
Continue reading How to Copy/Move an Azure VM between Regions and VNets
Objective: To provide key configuration parameters for the beginner when creating the Azure Kubernetes Service with Azure CLI. My design with related az aks create command configuration parameters. You can find the az aks create command’s documentation provides a list of about 60 parameters. az aks create --name --resource-group [--aad-admin-group-object-ids] [--aad-client-app-id] [--aad-server-app-id] [--aad-server-app-secret] [--aad-tenant-id] [--admin-username] …
Continue reading Comprehensive Guide To Create an Azure Kubernetes Service with Az CLI
As announced, in this article Kubernetes resource view is in public preview, I will review and give my thoughts on this new feature Kubernetes Resource View in the Azure Portal compared to the OSS Kubernetes Dashboard (Web UI). A prerequisite is that the AKS Cluster needs to be enable Azure AD integration. The biggest convenience …
Continue reading Azure Portal Azure Kubernetes Resource Viewer vs Kubernetes Dashboard
Issue Background: With an Azure Kubernetes Service deployment (version 1.17.9) in my dev environment, I launch the Kubernetes Dashboard application and I can’t see any Kubernetes resources and I get the following error notification clusterroles.rbac.authorization.k8s.io is forbidden: User "clusterUser" cannot list resource "clusterroles" in API group "rbac.authorization.k8s.io" at the cluster scope I am attempting to …
Error Message: Failed to pull image "rkaks/dotnetcoresqldb:dev": rpc error: code = Unknown desc = Error response from daemon: pull access denied for rkaks/dotnetcoresqldb, repository does not exist or may require 'docker login': denied: requested access to the resource is denied Shown from the Kubernetes Dashboard application Context I have my application's docker image pushed into …
Continue reading Error & Fix: Azure Kubernetes ‘Failed to pull image’
My Blog Post: An ASP .NET Core app hosted in Azure Kubernetes Service (AKS) that is accessing an Azure SQL Database using Azure AD Managed Identity. The benefit is the ability for the application code not to use conventional SQL credentials of username and password stored in configuration files. Also, not use Azure Key vault to retrieve any user name and password credentials. There is nothing wrong with these techniques, but using Managed Identity is more streamlined and is a security best practice. #AKS #Kubernetes #Security #managedidentity #azureAD #AzureSQL
Roy Kim on Azure and AI 