Edi Wang

Microsoft MVP for Azure

All Posts

Solving Azure AD Sign In Failure with Azure Front Door

Today I am migrating my blog to use Azure Front Door which I have introduced in a previous blog post last year. Everything went well except for the blog admin sign in. I configured my blog to Azure AD as SSO. But after I put the blog behind Azure Front Door with my custom domain, OIDC Redirect URL just blow up. OIDC Redirection Failure When I tried to sign in, the redirection URL suddenly went to …
Azure Azure AD Front Door

Use Azure Function to Schedule Auto Start for VMs

VMs on the Microsoft Azure platform can be configured to automatically shut down by schedule. However, currently only VMs in the DevTest Lab service can be powered on automatically. Regular VMs have not been updated with the auto start capability. But still, we can take advantage of Azure Function V3 and PowerShell Core to start the VM by timed schedule. The Idea I have wrote a post 6 year ago …
Azure PowerShell VM Azure Function

Fix 'Cannot Delete Payment Method' for Expired Credit Card on Azure

Recently my credit card for Azure expired. I have to replace it with a new card. But when I added my new card and try to delete my old credit card, Azure pop up an error saying "Cannot delete payment method(s)" and indicates that the card is in use. I was trying to delete credit card from "Cost Management + Billing" - "Payment methods" screen. The reason why Azure won't let me delete my old …
Azure

Import Data to Azure Storage Table from SQL Server

Recently, there was a demand to switch data storage from SQL Server database to Azure Storage Table. However, neither SSMS nor Azure Portal provide a direct import function. You may now consider writing a tool to import data, but actually it isn't necessary. I still managed to do it within mouse clicks. But the first thing to warn everyone is that relational databases like SQL Server are not …
SQL Server Azure Storage

How to Use the Latest .NET Core Runtime on Azure App Service

Microsoft often releases updates to .NET Core, usually as security patches. This morning, the .NET Core 3.1.5 update was released. However, Azure App Service's own .NET Core runtime will not be updated immediately, and we would usually wait a few weeks before Microsoft rolls out the update to Azure. For applications with high security requirements, it is urgent to complete the update before …
.NET Azure App Service

My ASP.NET Core Route Debugger Middleware

Background In the ancient days of the .NET Framework, there was a RouteDebugger that outputs routing information for the current page in an MVC or web API app, or sees all the routing information registered in the app. The latest version of its NuGet package is 2.1.5, updated in 2016, from an article by Phil Haack 12 years ago https://haacked.com/archive/2008/03/13/url-routing-debugger.aspx …
.NET Middleware

Docker Support for My .NET Core Blog System on Azure

"Moonglade", the open-source blog system used by my blog (https://edi.wang), has been around for over a year. At least four community friends have used the system to deploy their own blogs on Azure and Alibaba Cloud. Unfortunately, the system has long lacked Docker support, which is the political correctness of today's world. Recently things have changed, and I successfully made my blog system run …
Azure Linux Docker

How to Check Resource Existence in Azure CLI

Azure CLI can help us automate the configuration and management tasks of Azure. Ideally, for repetitive tasks, using CLI scripts can help us save time. However, Azure CLI still has some features that are not convenient enough, such as checking the existence of resources. Current Situation For some resource types, such as Resource Group, Azure CLI provides exists directive that can return the …
Azure CLI

How to Check If .NET Core Program is Running under Remote Desktop

There are a few reasons that we need to know if our program is running under the Windows Remote Desktop (RDP) session. For example, if it is running under RDP, we may disable animation and other fancy graphics effects. But how can we detect if our program is currently under RDP? Let's see. Windows Forms If you are developing Windows Forms Apps using .NET Core 3.x, there's a built-in API that can …
.NET Windows Remote Desktop

Performance Optimization for My .NET Core Blog on Azure

I rewrote my blog system with .NET Core last year. After more than a year of optimization, the server response time is now 8ms comparing to 80ms when it first went live. This article shares what I have done to make my blog works really fast. In fact, before .NET Core, my old blog system was written by .NET Framework, built from ASP.NET Web Form 2.0 in 2008 all the way up to ASP.NET MVC5 in 2018. …
.NET Azure CDN