Migration

From monolith to microservice

Reasons

• Increased security
• Robustness
• Independent scaling of individual microservices
• speed of development

Typical Migration Strategies

• Give a preference to asynchronous communication

• Give preference to UI integration

• Avoid synchronous communication

• Reuse old interfaces?

• Integrating authentication

• Replicating data

• • Replication should be done in one direction

• Black box migration

• • Choosing the first microservice for the migration
  • Analyze the domain logic of the legacy system into bounded contexts.

• Extreme migration strategy: all changes in microservices

• Further procedure: step-by-step migration