1.介绍microservice
2.介绍springboot
3.创建协作的微服务
4.docker部署微服务
5.添加api描述，openapi/swagger
6.添加持久层
7.reactive microservice
构建 scalable, resilient and manageable microservice
问题：
- How I learned about microservices and what experience I have of their benefits and challenges
autonomous software component, having its own persistence and communicating with api
多个好处：Decomposing the platform's functionality into a set of autonomous software components provides a number of benefits:
好处1：deploy parts of system, integrating existing systems
好处2：replace components with customers'
好处3：being delievered and upgraded seperately
好处3：scaled out to serveral server instances independently
面临挑战：
挑战1：manually configuring load balancers and manually setting up new nodes. time-consuming and error-prone.
挑战2：chain of failures
挑战3：keepping the configuration consistent and up-to-date in all of instances of components
挑战4：monitoring, in terms of latency issues and hardware usage(CPU, memory, disk and the network)
挑战5 collecting log files and correlating related log events
- What is a microservice-based architecture?
defining microservice: splitting up a monolithic application into smaller components, achieving two goals:
1. faster development, enabling continuous deployments
2.easier to scale, manually or automatically
an autonomous software component: independently upgradable and scalable
条件1：mircroservices don't share data in database
条件2：communicating with well defined interface
条件3：deployed as seperate runtime processes, such as docker
条件4：microservice instance is stateless
How big should a microservice be?
1.small enough to fit to the head of a develper
2.not jeopardize performance(latency) or data consistency
- Challenges with microservices
- Design patterns for handling challenges
- Software enablers that can help us handle these challenges
- Other important considerations that aren't covered in this book