Build ASP.NET Core Web App and deploy as Azure Web App on Containers

Azure Web Apps or Azure App Service Web Apps or simply Azure Websites is a PaaS service from Microsoft Azure which can be used to host web apps or APIs build using a variety of programming languages like ASP.NET, ASP.NET Core, Java, Ruby, PHP etc. It is also optimized for hosting web applications and containers, in case the SDK version required is not already supported by Web Apps. Rather than using ACS (Azure Container Services) and AKS (Azure Kubernetes Service), Azure Web Apps are more suitable for deploying long running containers. Also they become more affordable in terms of pricing as compared to the ACS and AKS. In this post, we’ll discuss how to create a very basic ASP.NET Core App and then deploy it as a container on Azure Web App.  Continue reading “Build ASP.NET Core Web App and deploy as Azure Web App on Containers”

Load balance Azure Web Apps Using Nginx Server

Azure Web Apps is a peculiar case as it uses ARR (Application Request Routing) by using cookies. By enabling this, they get the functionality of the sticky sessions. A session is called as sticky session when subsequent requests that are made within an established session get processed by the same instance of an app that served the very first request of the session. However if you’ve built your app to be stateless ARR actually limits scalability of your system. It also disallows the Azure Web Apps to be configured behind a highly efficient web server like nginx.

In this blog post, we’ll learn how to configure nginx server so that you can configure multiple Azure Web Apps behind it.  Continue reading “Load balance Azure Web Apps Using Nginx Server”

Apply / Update application settings for Azure App Service using PowerShell

Windows Azure App Service (Now an umbrella term for Azure Web App, Azure Api App, etc.) has a handy capability whereby developers can store key-value string pairs in Azure as part of the configuration information associated with a website.  At runtime, Windows Azure Web Sites automatically retrieves these values for you and makes them available to code running in your website.  Since the key-value pairs are stored behind the scenes in the Windows Azure Web Sites configuration store, the key-value pairs don’t need to be stored in the file content of your web application.  From a security perspective that is a nice side benefit since sensitive information such as Sql connection strings with passwords never show up as cleartext in a config file. However, sometimes, this can be a little too much for the Azure Admins to configure each setting over there. In this blog post, we’ll learn how to apply application settings using PowerShell.  Continue reading “Apply / Update application settings for Azure App Service using PowerShell”

Setup API definition and CORS for Azure Web Apps using Azure ARM template

Microsoft Azure App Service can not only be used to host web apps but they can also be used to host API services. Swagger is a framework for describing your API using a common language that everyone can understand. In order for the other softwares to parse your Swagger and notice your API as connector, it’s necessary that you enable CORS and set the APIDefinition properties of the web application you want to use:

api definition from azure portal

Continue reading “Setup API definition and CORS for Azure Web Apps using Azure ARM template”

Create Azure Web App in existing App Hosting Plan using Azure ARM template

When working with Azure services, you will combine services together. Many times, you would need to add an Azure Web App to an existing App Hosting Plan rather than creating a new app hosting plan every time you want to create an azure app service. This is a useful strategy to save cost if the load on the web site is not high. In this blog post we are going to discuss how we can leverage Azure ARM to deploy an app service to an existing app hosting plan.

In one of the previous posts, we discussed how to create an app hosting plan and an azure app service in one go using Azure ARM. The way we linked an hosting plan with app service is by mentioning app hosting plan id inside the property of the web app:

Continue reading “Create Azure Web App in existing App Hosting Plan using Azure ARM template”

Create azure web app with application insights using ARM template

Creating both the Azure web app and the Application Insights resources independently is no problem and should be relatively easy for anyone familiar with ARM. However, creating them fully integrated takes just a little bit more work. It’s kind of because you would want them both to be linked to each other.

If you use the Visual Studio wizard for creating an ARM template, you’ll notice that it  forces the AppInsights resource to be dependent on the web app being created. So first you need to create web app and then AppInsights resource. However, when AppInsights resource is created, it would also generate instrumentation key which you would want to put inside the application settings of the web app. So we would need to do it the other way around. In this blog post, we’ll learn how to achieve our objective and create both of them in one go. Continue reading “Create azure web app with application insights using ARM template”

Configure application settings for Azure Web App using Azure ARM template

In last post, we have discussed how to create azure web app along with the deployment slots using Azure ARM template. We are going to expand on the template created and learn how to configure application settings, web app properties like alwaysOn, remote debugging, etc and connection strings for azure web app in this blog post.

Define Web App Properties

Method 1: Use of Object variables
Variables are not only useful for declaring text that is used in multiple places and standardize them; they can be objects as well. Continue reading “Configure application settings for Azure Web App using Azure ARM template”