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Create an Azure Service Fabric Mesh application

Goal

The goal of this section is to create a new .net core application and run it in Mesh.

Process

Step Procedure
Create a Service Fabric Mesh Application using Visual Studio We will use Visual Studio to create a Service Fabric application hosting the container
Deploy the application to Service Fabric Mesh Using Visual Studio and Azure Container Registry
Add configuration to the service We will apply configuration to the service using the Mesh model

Create a Service Fabric Application

In this section we will create a Service Fabric application with the container as a service, and configure it.

  1. Open Visual Studio

  2. Create a new Service Fabric Mesh Application project

  3. Choose ASP.NET Core

  4. Choose the Web Application template

Notice that two projects are created. The Mesh Application project holds the yaml files, which described shared resources for the application. The asp.net core web project is a regular asp.net core project, which runs anywhere. But the project also has a Dockerfile and a service.yaml file to describe how to run it in Mesh.

  1. Press F5 to debug the application

Once you hit F5, Visual Studio will help setup a local Service Fabric cluster to host the Mesh application in containers.

Once completed, the application is shown in your browser.

  1. In Visual Studio stop the debug session by pressing Shift+F5

Publish the application to Azure Service Fabric Mesh

  1. To publish the application to Service Fabric Mesh in Azure, Right-click the Service Fabric Mesh application project and choose Publish

  2. Sign in to your Azure account and provide the information needed for the Publish dialog.

Visual Studio will pull a container image to complete the container build. This may take a few minutes to complete. The Visual Studio output window will show the progress.

Once the deployment is done. Visual Studio will output the IP address of the application running in Mesh.

  1. Open the Azure Portal https://portal.azure.com

  2. Browse to the resource group you just created

  3. Open the Mesh Application and browse through Services - Replica 0 - Code Package and choose Logs

This will show you the stdout container logs form the container deployed to Mesh

Add configuration

  1. In Visual Studio, open the service.yaml file under the Service Resources folder in the Web project.

  2. In line 22 and 23 add another environment variable with the name MyEnvVar and a random value

  3. Save the file

  4. Open the About.cshtml file in the Pages folder

  5. Add the following line to the file:

<p>MyEnvVar value: @Environment.GetEnvironmentVariable("MyEnvVar")</p>

  1. Press F5 to debug the application, once the web site comes up, go to the About page and you should see the value from the environment variable show up.

  2. Without stopping the debugger, you can make changes to the About.cshtml file and reload the browser to see you changes. There is no need to redeploy the container and app to quickly see changes that do not require recompiling the code.

  3. Stop the debug session by pressing Shift+F5

Deploy the new version to Azure Service Fabric Mesh

  1. To publish the updated application to Service Fabric Mesh in Azure, Right-click the Service Fabric Mesh application project and choose Publish

  2. The publish dialog should have stored the information and you can click Publish

This will kick-off a rebuild and deployment of the containers. Once finished go to the web site. You can also browse the Azure portal to see the environment variable that the container is running with.

Completion

In this section of the lab, we’ve build a new asp.net core service and deployed it to Azure Service Fabric Mesh