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Modernize ASP.NET web apps to Azure App Service code

  • आलेख

This article shows you how to migrate ASP.NET web apps at-scale to Azure App Service using Azure Migrate.

Note

Tutorials show you the simplest deployment path for a scenario so that you can quickly set up a proof-of-concept. Tutorials use default options where possible and don't show all possible settings and paths.

In this tutorial, you learn how to:

  • Migrate ASP.NET web apps at-scale to Azure App Service using integrated flow in Azure Migrate.
  • Change migration plans for web apps.
  • Change App Service plan for web apps.

If you don't have an Azure subscription, create a free account before you begin.

Prerequisites

Before you begin this tutorial, you should:

  1. Complete the first tutorial to discover web apps running in your VMware environment.
  2. Complete the second tutorial to assess web apps to determine their readiness status for migration to Azure App Service. It's necessary to assess web apps in order to migrate them using the integrated flow.
  3. Go to the existing project or create a new project.

Migrate web apps

Once the web apps are assessed, you can migrate them using the integrated migration flow in Azure Migrate.

  • You can select up to five App Service Plans as part of a single migration.
  • Currently, we don't support selecting existing App Service Plans during the migration flow.
  • You can migrate web apps up to a maximum size of 2 GB, including content stored in the mapped virtual directory.
  • Currently, we don't support migrating UNC directory content.
  • You need Windows PowerShell 4.0 installed on servers hosting the IIS web servers from which you plan to migrate ASP.NET web apps to Azure App Services.
  • Currently, the migration flow doesn't support VNet integrated scenarios.

To migrate the web apps, perform these steps:

  1. In the Azure Migrate project > Servers, databases and web apps > Migration tools > Migration and modernization, select Replicate.

    Screenshot of the Replicate option selected.

  2. In Specify intent, > What do you want to migrate?, select ASP.NET web apps.

  3. In Where do you want to migrate to?, select Azure App Service native.

  4. In Virtualization type, select VMware vSphere.

  5. In Select assessment, select the assessment you want to use to migrate web apps and then select the Continue button. Specify the Azure App Service details where the apps will be hosted.

    Screenshot of selected intent.

  6. In Basics, under Project details, select the Subscription, Resource Group, and Region where the web apps will be hosted, from the drop-down. Under Storage, select the Storage account for an intermediate storage location during the migration process. Select Next: Web Apps >.

    Screenshot of Azure Migrate Web Apps Basics screen.

  7. In the Web Apps section, review the web apps you'd like to migrate.

    Screenshot of Azure Migrate Web Apps screen.

    Note

    Apps with the Ready status are tagged for migration by default. Apps tagged as Ready with conditions can be migrated by selecting Yes in Will migrate?.

    1. Select the web apps to migrate and select Edit.

      Screenshot of Azure Migrate selected web apps.

    2. In Edit apps, under Will migrate?, select Yes, and select the App Service Plan and Pricing tier of where the apps will be hosted. Next, select the Ok button.

      Note

      Up to five App Service plans can be migrated at a time.

      Screenshot of Azure Migrate Edit apps.

      Select the Next: App Service Plans > button.

  8. In the App Service Plans section, verify the App Service Plan details.

    Note

    Depending on your web app requirements, you can edit the number of apps in an App Service plan or update the pricing tier. Follow these steps to update these details:

    1. Select the Edit button.
    2. In Edit plan, select the Target name and Pricing tier, then select Ok. Screenshot of App Service Plan Edit details.

  9. Once the App Service Plans are verified, select Next: Review + create.

  10. Azure Migrate will now validate the migration settings. Validation may take a few minutes to run. Once complete, review the details and select Migrate.

    Note

    To download the migration summary, select the Download CSV button.

Once the migration is initiated, you can track the status using the Azure Resource Manager Deployment Experience as shown below:

Screenshot of Azure Migrate deployment.

Post-migration steps

Once you have successfully completed migration, you may explore the following steps based on web app specific requirement(s):

Next steps