Microservice Architecture
Supported by KongWhat are microservices?
Microservices - also known as the microservice architecture - is an architectural style that structures an application as a collection of loosely coupled services, which implement business capabilities. The microservice architecture enables the continuous delivery/deployment of large, complex applications. It also enables an organization to evolve its technology stack.
Microservices are not a silver bullet
The microservice architecture is not a silver bullet. It has several drawbacks. Moreover, when using this architecture there are numerous issues that you must address. The microservice architecture pattern language is a collection of patterns for applying the microservice architecture. It has two goals:
- The pattern language enables you to decide whether microservices are a good fit for your application.
- The pattern language enables you to use the microservice architecture successfully.
Where to start?
A good starting point is the Monolithic Architecture pattern, which is the traditional architectural style that is still a good choice for many applications. It does, however, have numerous limitations and issues and so a better choice for large/complex applications is the Microservice architecture pattern.
Example microservices applications
How to apply the pattern language
Microservices adoption:
Who is using microservices?
New training video from O'Reilly: event-driven microservices
The patterns
Core patterns
Decomposition
Deployment patterns
- Multiple service instances per host
- Service instance per host
- Service instance per VM
- Service instance per Container
- Serverless deployment
- Service deployment platformnew
Cross cutting concerns
Communication style
External API
Service discovery
- Client-side discovery
- Server-side discovery
- Service registry
- Self registration
- 3rd party registration
Reliability
Data management
- Database per Service
- Shared database
- Event-driven architecture
- Event sourcing
- Transaction log tailing
- Database triggers
- Application events
- CQRS
Security
- Access Tokennew
Testing
Observability
- Log aggregationnew
- Application metricsnew
- Audit loggingnew
- Distributed tracingnew
- Exception trackingnew
- Health check APInew
UI patterns
About Microservices.io
Microservices.io is brought to you by Chris Richardson. Experienced software architect, author of POJOs in Action and the creator of the original CloudFoundry.com. His latest startup is eventuate.io, a microservices application platform.
Learn more about microservices
Chris offers a comprehensive set of resources for learning about microservices including articles, an O'Reilly training video, and example code. Learn more
Microservices consulting and training
Chris offers a comprehensive consulting services, workshops and hands on training classes to help you use microservices effectively. Get advice
Example microservices applications
Want to see an example? Check out Chris Richardson's example applications. See code
Get the book: Microservice patternsnew
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