Publish an ASP.NET Core app to Azure with Visual Studio


ASP.NET Core preview releases with Azure App Service

ASP.NET Core preview releases aren't deployed to Azure App Service by default. To host an app that uses an ASP.NET Core preview release, see Deploy ASP.NET Core preview release to Azure App Service.

To troubleshoot an App Service deployment issue, see Troubleshoot ASP.NET Core on Azure App Service and IIS.

Set up

Open a free Azure account if you don't have one.

Create a web app

Start Visual Studio 2022 and select Create a new project.

Create a new project from the start window

In the Create a new project dialog, select ASP.NET Core Web App, and then select Next.

Create an ASP.NET Core Web App

In the Configure your new project dialog, name your project, and then select Next.

In the Additional information dialog:

  • In the Framework input, select .NET 7.0 (Standard Term Support).
  • In the Authentication type input, select Individual Accounts, and then select Create.

Additional information

Visual Studio creates the solution.

Run the app

  • Press F5 to run the project.

Web application open in Microsoft Edge on localhost

Register a user

  • Select Register and register a new user. You can use a fictitious email address. When you submit, the page displays the following error:

    "A database operation failed while processing the request. Applying existing migrations may resolve this issue"

  • Select Apply Migrations and, once the page updates, refresh the page.

A database operation failed while processing the request

  • A Register confirmation page is displayed. Select Click here to confirm your account.
  • A Confirm email page is displayed.
  • Log in as the new user.

The app displays the email used to register the new user and a Logout link.

Web application open in Microsoft Edge. The Register link is replaced by the text Hello!

  • Stop the application by closing the browser, or in Visual Studio select Debug > Stop Debugging.
  • In Visual Studio select Build > Clean Solution to clean project items and avoid file contention.

Deploy the app to Azure

Right-click on the project in Solution Explorer and select Publish.

Contextual menu open with Publish link highlighted

In the Publish dialog:

  • Select Azure.
  • Select Next.

Publish dialog

In the Publish dialog:

  • Select Azure App Service (Windows).
  • Select Next.

Publish Dialog: select Azure Service

In the Publish dialog, in the App Service tab, select Create new.

Publish dialog: select Azure Service instance

The Create App Service dialog appears:

  • The Name, Resource Group, and Hosting Plan entry fields are populated. You can keep these names or change them.
  • Select Create.

Create App Service dialog

After creation is completed the dialog is automatically closed and the Publish dialog gets focus again:

  • The new instance that was just created is automatically selected.
  • Select Finish.

Publish dialog: select App Service instance

The Publish profile creation progress dialog confirms the publish profile was created. Select Close.

Next you see the Publish Profile summary page. Visual Studio has detected that this application requires a SQL Server database which it has listed in the Service Dependencies pane. Select the ellipsis (...) and then Connect.

Publish Profile summary page: configure SQL Server dependency

The Connect to dependency dialog appears:

  • Select Azure SQL Database.
  • Select Next.

Configure SQL Server Dependency dialog

In the Connect to Azure SQL database dialog, select Create new.

Select Create a SQL DB

The Create Azure SQL Database appears:

  • The Database name, Resource Group, Database server and App Service Plan entry fields are populated. You can keep these values or change them.
  • Enter the Database administrator username and Database administrator password for the selected Database server (note the account you use must have the necessary permissions to create the new Azure SQL database)
  • Select Create.

New Azure SQL Database dialog

After creation is completed the dialog is automatically closed and the Connect to Azure SQL Database dialog gets focus again:

  • The new instance that was just created is automatically selected.
  • Select Next.

Select Next

In the next step of the Connect to Azure SQL Database dialog:

  • Enter the Database connection user name and Database connection password fields. These are the details your application will use to connect to the database at runtime. Best practice is to avoid using the same details as the admin username and password used in the previous step.
  • Select Finish.

Configure Azure SQL Database dialog, connection string details

The Dependency configuration progress dialog confirms the Azure SQL Database is configured. Select Close.

In the Publish Profile summary page select More actions > Edit:

Publish profile summary page: edit settings

On the Settings tab of the Publish dialog:

  • Expand Databases and check Use this connection string at runtime.

  • Expand Entity Framework Migrations and select Apply this migration on publish.

  • Select Save. Visual Studio returns to the Publish dialog.

Publish dialog: Settings panel:Save

Click Publish. Visual Studio publishes your app to Azure. When the deployment completes.

Last step

The app is opened in a browser. Register a new user and log in as the new user to validate the database deployment and run-time connection.

Update the app

  • Edit the Pages/Index.cshtml Razor page and change its contents, then save the changes. For example, you can modify the paragraph to say "Hello ASP.NET Core!":

    @model IndexModel
        ViewData["Title"] = "Home page";
    <div class="text-center">
        <h1 class="display-4">Welcome</h1>
        <p>Learn about <a href="">building Web apps with ASP.NET Core</a>.</p>
        <p>Hello ASP.NET Core!</p>
  • Select Publish from the Publish Profile summary page again.

Publish profile summary page

  • After the app is published, refresh the page and verify that the changes you made are available on Azure.

Verify task is complete

Clean up

When you have finished testing the app, go to the Azure portal and delete the app.

  • Select Resource groups, then select the resource group you created.

Azure Portal: Resource Groups in sidebar menu

  • In the Resource group page, select Delete resource group.

Azure Portal: Resource Groups page

  • Enter the name of the resource group and select Delete. Your app and all other resources created in this tutorial are now deleted from Azure.

Additional resources