本文内容 "第一次是否正确完成并不重要。 "It's not important to get it right the first time. read Building Microservices with Core: Develop, Test, and Deploy Cross-Platform Services in the Cloud android Amazon Web Services is Hiring. Amazon Web Services (AWS) is a dynamic, growing business unit within. We are currently hiring Software Development Engineers, Product Managers, Account Managers, Solutions Architects, Support Engineers, System Engineers, Designers and more. The dev world has permanently embraced open platforms with flexible tooling, and Core has changed with it. This free, open source web framework delivers choice without compromise. You can enjoy the benefits of a mature, well-supported stack and the freedom to develop and deploy …
Microservices & Docker containers Microservices are small, modular, and independently deployable services. Docker containers (for Linux and Windows) simplify deployment and testing by bundling a service and its dependencies into a single unit, which is then run in an isolated environment.
Having a solid architecture is an essential piece for ensuring the longevity of your software. In this episode Cesar De la Torre Llorente ( @ cesardelatorre) comes on the show to talk about Core application architecture for microservices and containers. [01:06] - Introducing the application architecture website [05:23] - Running the reference application [06:33] - Understanding the target audience [07:35] - Testing strategy [09:11] - Exploring the technology stack [13:25] - Managing the weight of the API gateway [16:35] - Adopting the guidance [21:33] - Communication patterns between microservices [22:36] - Modeling challenges with microservices [26:14] - Getting help with the reference application To learn more about some of the topics discussed in this episode, take a look at the links below. GitHub repository for eShopOnContainers Microservices - Architecture e-book Application Architecture Guidance
Policy Service – main service in our system. It is responsible for creation of offers and policies. It uses Pricing Service via REST calls to calculate the price. Once a policy is created it sends asynchronous event to the event bus (RabbitMQ) so other services can react. Policy Search Service – a sole purpose of this service is to expose search functionality. This service subscribes to events related to policy lifecycle and indexes given policy in ElasticSearch to provide advanced search capabilities. Payment Service – this service is responsible for managing financial operations related to policy. It subscribes to policy related events, creates policy account when policy is created, registers expected payments. It also has a very simplified background job that parses file with incoming payments and assigns it to proper policy account. Product Service – this is a product catalog. It provides basic information about each insurance product and its parameters that can be customized while creating an offer for a customer.
Document Service – this service uses JS Report to generate pdf certificates. As you can see services are decomposed by business capability. We also have one technical service – document service. Introducing technical services makes sense when they require scalability/resilience and we want reduce time to update/fix or licence costs. Each microservice is built around bounded context in DDD terms. Also you can observe that they cooperate to achieve the main business goal – to sell an insurance product to the end customer. Solution Structure Below is a fragment of our solution open in Rider IDE. As you can see for each microservice we create three projects: one for API definition, one for implementation and one for tests. You can find source code for our project here on our GitHub. Note that it is work in progress and code will change as we progress with our series. API definition project contains classes and interfaces that describe service capabilities exposed to the external world in form of commands it can handle, queries it can answer, events it emits and data transfer object classes it exposes.