Integrating microservices in a monlothic architecture

This project is a proof of concept, on how to effectively integrated new mirco-services into an existing monolithic infrastructure. The microservice``` included are:

• user_service responsible for creating and handling user processes
• log_service for logging any information
• legacy_user_service for handling syncing calls between the old legacy DB and the new mirco-services
• possible further micro-services like a search service or an accounting services are shown, but not yet implemented.

General Concept

This project uses the following technologies:

• docker/docker-compose
• Kafka
• php 7.2
• MySql

It includes the following architecture and software concepts:

• separation of concerns (through small loosly coupled services)
• Publish/Subscribe and Messaging system, through Kafka
• Async processing, for better performance

Getting Started:

you need to have docker-compose installed

then simply run docker-compose up

Todo

• unit testing
• concrete CRUD processes in the user_service
• more complex processing in the legacy_user_service
• integrate CI/CD through Jenkins or travis-ci