What is AWS Migration Hub?

• AWS Migration Hub is a service for planning, orchestrating, and tracking application migration to AWS.

• Supports migration status updates from the following:

  • AWS Application Migration Service

  • AWS Database Migration Service

AWS Migration Hub Features

• Use network visualization to quickly organize on-premises discovery data and accelerate migration planning.

• Strategy Recommendations analyzes your applications to help you determine the best strategy and tools for migrating and modernizing at scale.

• The orchestrator automates and simplifies application migration to AWS.

• A dashboard for monitoring the status and metrics of your migrations in all AWS Regions.

• Refactor Spaces provides an application proxy that emulates the strangler-fig pattern, allowing you to add new services to an external HTTPS endpoint and incrementally route traffic to new services.

• Supports multi-region migrations.

AWS Migration Hub Concepts

• To discover on-premises resources, you’ll need to use the following AWS tools:

  • AWS Application Discovery Service (see AWS ADS Cheat Sheet)

    • Agentless Collector

    • Discovery Agent

  • Migration Evaluator Collector

  • Migration Hub import

• Home Region

  • The status and migration tracking data is stored in the home region.

  • You can also register agents and collectors outside of your home Region, but this disables data collection.

• Strategy Recommendations

  • Performs an assessment to the following:

    • Server inventory

    • Runtime environment

    • Source code

    • Database

  • You can download the recommendations data in Microsoft Excel format.

  • Aside from using the application data collector, you can also import data using a template.

• Orchestrator

  • A centralized location for running and tracking migrations.

  • Provides predefined templates for creating a migration workflow that can be customized to meet your specific migration requirements.

    • Migrate SAP NetWeaver applications to AWS.

    • Rehost applications on Amazon EC2

• Refactor Spaces

  • Use this Refactor Spaces when you want to evolve applications into microservices.

  • You’ll need the following accounts to get started:

    • One for existing application

    • One for first new microservice

    • One for refactor environment owner

  • To add new services to an external HTTP endpoint, it orchestrates the following services:

    • Amazon API Gateway

    • Network Load Balancer 

    • Resource-based AWS IAM

  • It also simplifies cross-account networking by orchestrating:

    • AWS Transit Gateway

    • AWS Resource Access Manager

    • Amazon VPCs

  • Environment

    • The environment consists of bridged VPCs that allow resources to interact via private IP addresses.

    • An environment owner has cross-account visibility into routes, applications, and services, regardless of which account created the resource.

  • The application contains routes, services and a single external endpoint to expose the app.

  • Route

    • A proxy matching rule that forwards a request to a service.

    • If none of the rules match, it uses a default route to forward requests to a default service.

    • It is configured on the application’s Amazon API Gateway proxy.

    • You can toggle it between active or inactive state.

• You can use EC2 instance recommendations to estimate the cost of running on-premises servers to AWS.

AWS Migration Hub Monitoring

• Use the AWS Migration Hub API to obtain both application and server migration status.

• AWS CloudTrail captures all API calls from console and API operations.

AWS Migration Hub Pricing

• You are charged for the migration tools and resources used on AWS.

• You are charged for using Refactor Spaces:

  • Environments

  • API requests

References:
https://aws.amazon.com/migration-hub/
https://docs.aws.amazon.com/migrationhub/latest/ug/whatishub.html