Last time I wrote about how to use the Azure CLI to run Bicep within the context of an Azure Pipeline. The solution was relatively straightforward, and involved using az deployment group create in a task. There's an easier way.
Bicep is a terser and more readable alternative language to ARM templates. Running ARM templates in Azure Pipelines is straightforward. However, there isn't yet a first class experience for running Bicep in Azure Pipelines. This post demonstrates an approach that can be used until a Bicep task is available.
Managed Identity offers a very secure way for applications running in Azure to connect to Azure SQL databases. It's an approach that does not require code changes; merely configuration of connection string and associated resources. Hence it has a good developer experience. Importantly, it allows us to avoid exposing our database to username / password authentication, and hence making it a tougher target for bad actors.
Generating clients for APIs is a tremendous way to reduce the amount of work you have to do when you're building a project. Why handwrite that code when it can be auto-generated for you quickly and accurately by a tool like NSwag? To quote the docs:
I've written lately about zero downtime releases with Azure App Service. Zero downtime releases are only successful if your authentication mechanism survives a new deployment. We looked in my last post at how to achieve this with Azure's in-built authentication mechanism; Easy Auth.
I wrote recently about zero downtime deployments on Azure App Service. Many applications require authentication, and ours is no exception. In our case we're using Azure Active Directory facilitated by "Easy Auth" which provides authentication to our App Service.
I've been working recently on zero downtime deployments using Azure App Service. They're facilitated by a combination of Health checks and deployment slots. This post will talk about why this is important and how it works.
This post is about Azure's role assignments and ARM templates. Role assignments can be thought of as "permissions for Azure".
If you're deploying an ASP.NET application to Azure App Services / Azure Container Apps or similar, there's a decent chance you'll also be using the fantastic Serilog and will want to plug it into Azure's Application Insights.
I wrote recently about how to get Azure App Service Easy Auth to work with roles. This involved borrowing the approach used by MaximeRouiller.Azure.AppService.EasyAuth.
As a consequence of writing that post I came to learn that official support for Azure Easy Auth had landed in October 2020 in v1.2 of Microsoft.Identity.Web. This was great news; I was delighted.
However, it turns out that the same authorization issue that MaximeRouiller.Azure.AppService.EasyAuth suffers from, is visited upon Microsoft.Identity.Web as well. This post shows hoew to resolve it with IClaimsTransformation.
Azure App Service has a feature which is intended to allow Authentication and Authorization to be applied outside of your application code. It's called "Easy Auth". Unfortunately, in the context of App Services it doesn't work with .NET Core and .NET. Perhaps it would be better to say: of the various .NETs, it supports .NET Framework. To quote the docs:
At this time, ASP.NET Core does not currently support populating the current user with the Authentication/Authorization feature. However, some 3rd party, open source middleware components do exist to help fill this gap.
Thanks to Maxime Rouiller there's a way forward here. However, as I was taking this for a spin today, I discovered another issue.
By default Microsoft.Identity.Web responds to unauthorized requests with a 302 (redirect). Do you want a 403 (forbidden) instead? Here's how.
This is a post about having two kinds of authentication working at the same time in ASP.Net Core. But choosing which authentication method to use dynamically at runtime; based upon the criteria of your choice.