Create a web app assessment for modernization

This article describes how to review the insights from a web app assessment for modernization to Azure Kubernetes Service (AKS) or Azure App Service using Azure Migrate. Creating an assessment for your web apps provides the recommended targets for them and key insights such as app-readiness, target right-sizing, and cost to host, and run these apps month over month.

In this article, you learn how to:

• Get the recommended modernization path across the preferred targets based on app-readiness and cost.
• Get the modernization paths to each Azure target for all selected web apps.
• Review the migration warnings or issues and remediate them accordingly.
• Get the estimated monthly cost of running the web apps on Azure for each modernization path.
• Change assessment settings and recalculate.
• Export the assessment report to Excel.

Prerequisites

• Deploy and configure the Azure Migrate appliance in your VMware, Hyper-V, or physical environments.
• Check the appliance requirements and URL access to be provided.
• Discover web apps running on your environment
• Create a web app assessment.

View assessment insights

To view an assessment, follow these steps:

1. On the Azure Migrate project Overview page, under Decide and Plan, select Assessments. Search for the assessment using the Workloads filter and select it.

   

2. On the assessment Overview page, you see summarized insights on assessed workloads, recommended migration path, and target-specific migration path (that is, if you wanted to migrate all assessed apps to that target).

   

   1. Assessed workloads: Surfaces the collection of workloads assessed. Select view details to show the distribution across web server and web app types.
   2. Recommended path: It provides the most optimal path for migrating web apps across Azure targets, based on your preferred targets, cloud readiness, and cost. It captures the readiness distribution, migration strategy (Replatform vs Rehost), and monthly cost estimate for running the web apps across the targets.
   3. Target-specific migration path: This section provides the path for migrating all web apps to a specific target. It allows you to see the readiness warnings or issues for migrating the apps to that target and captures the monthly cost estimate.

3. The web apps can take one of the following readiness states:

   Status	Definition
   Ready	The web app is ready to be migrated.
   Ready with conditions	The web app needs minor changes to be ready for migration.
   Not ready	The web app needs major/breaking changes to be ready for migration.
   Unknown	The web app discovery data was either incomplete or corrupt to calculate readiness.

4. Select the Recommended path tab or View details in the recommended path report to get deeper insights.

   

5. This screen displays the distribution of the web apps across the Azure targets. It also provides other details such as the number of target instances (App Service instance, AKS clusters), migration strategy, and readiness distribution. Select a line item to drill down further. 

   

6. App Service Container: The target drill down shows granular details for the web apps recommended to this target.

   1. Top level insights include the cost distribution by App Service Plan SKUs and top migration issues or warnings.
   2. The report also shows how the web apps are packed into App Service plans. Selecting the plan brings up the plan details, rightsized based on the assessed web apps.
   3. Selecting the readiness status shows the migration issues or warnings, their root causes, and recommended remediation steps.

   

7. Selecting a web app from the target drill‑downs opens the web app drill‑down. On the Summary tab, you can view discovered metadata such as protocols, connection strings, application directories, and the tags assigned to the workload.

   

8. On the Readiness tab, you can see the readiness for this web app for each Azure target, the migration issues, or warnings and the recommended Azure target.

   

9. Azure Kubernetes Service: The target drill down shows granular details for the web apps recommended to this target.

   1. Top level insights include the cost distribution by Node SKUs and top migration issues or warnings.
   2. The report also shows how the web apps are packed into AKS node pools, the system pool, and the number of nodes per pool.
   3. Selecting the cluster brings up the cluster details, right sized based on the assessed web apps.

10. Go back to the Overview page. Select the Export option to download an excel containing the assessment details.

    

Next steps

• Modernize your web apps to App Service or AKS.
• Optimize Windows Dockerfiles.
• Review and implement best practices to build and manage apps on AKS.