Microservice Architecture
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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.
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CodeFreeze 2018 - There is no such thing as a microservice!
In early January, I gave a keynote at Code Freeze 2018 in Minneapolis. This fantastic conference lived up to its name - with windchill it was -9F outside. Here I am with the other keynote speakers: @randyshoup and @micheletitolo
About the keynote
The title of the talk was “There is no such thing as a microservice!”. The key points are:
- The microservice architecture is an architectural style that structures an application as a collection of loosely coupled services.
- The goal is to support the continuous delivery/deployment of software by small, autonomous teams. Each team is responsible for one or more services. Service size is much less important.
- It makes little or no sense to discuss individual microservices or, for example, to “use a microservice to solve a problem”.
- The microservices pattern language enables you to solve key problems when using the microservice architecture
- An event-driven architecture is a good way to tackle distributed data management challenges that arise microservice architecture.
Slides
Here are the slides:
Video
Here is the video:
The patterns
Application architecture 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 platform
Cross cutting concerns
Communication style
External API
Transactional messaging
Service discovery
- Client-side discovery
- Server-side discovery
- Service registry
- Self registration
- 3rd party registration
Reliability
Data management
- Database per Service
- Shared database
- Saganew
- API Compositionnew
- CQRS
- Event sourcing
- Application events
Security
Testing
Observability
- Log aggregation
- Application metrics
- Audit logging
- Distributed tracing
- Exception tracking
- Health check API
- Log deployments and changesnew
UI patterns