Serverless设计原则有效架构选择实践

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1. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Serverless Design Principles a guide to effective architectural choices Luca Mezzalira Principal Serverless Specialist Solutions Architect 亚马逊云科技 © yyyy, Amazon Web © yyyy, Services, Amazon Inc. or Web its Services, affiliates. Inc. All or rights its affiliates. reserved. All rights reserved.
2. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Luca Mezzalira Principal Serverless Specialist at AWS International Speaker Author © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 2
3. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Distributed Systems are LIVING systems © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 3
4. Distributed systems goals Organization scalability Reduce external dependencies © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. Faster feedback loop Business Agility Reduce blast radius
5. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER How does serverless fit in distributed systems? © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 5
6. Serverless is a STRATEGY n i t i f f i i f t i © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 6
7. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Serverless Portfolio* APPLICATION PRIMITIVES – COMPUTE AND DATASTORES AWS Lambda Amazon S3 Amazon DynamoDB AWS Fargate Amazon Aurora Serverless Amazon Kinesis APPLICATION INTEGRATION Amazon SNS Amazon API Gateway AWS Step Functions W S p p Sy n Amazon SQS Amazon EventBridge Developer Tools AWS Cloud9 AWS CloudFormation AWS CodePipeline AWS Config AWS CloudTrail Amazon CloudWatch AWS X-Ray AWS Serverless Application Repository SECURITY AND ADMINISTRATION AWS IAM AWS SSO Amazon GuardDuty © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. Amazon Inspector Amazon VPC AWS WAF AWS Shield Amazon Cognito n o t e x h a u s tiv 7
8. Where can serverless help? Focus on business value Automatic scaling Security and isolation by design Managed infrastructure Lower Total Cost of Ownership (TCO) Business agility © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
9. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER How to design Serverless applications © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 9
10. CONNECTED DIMENSIONS in distributed systems Organization © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. Culture System Architecture
11. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Organization © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 11
12. Any organization that designs a system will produce a design whose structure is a copy of the organization's communication structure. Melvin E. Conway 1967 © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
13. Centralized mindset Engineering Teams Team A Team B Team C Tech Leadership Platform Team Security Team Architecture Team © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 13
14. Decentralize mindset Key: On-boarding Team )( Platform-as-a-Service Platform Team Inner Platform (AWS) © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. Data Science Team ][ Personalization Team Stream-aligned team – A team with a business-aligned objective Enabling Team - An Enabling team helps a stream-aligned team to overcome obstacles. )( Catalog Team Complicated Subsystem Team – A team with specialist skills that facilitate acute functionality )( ][ Facilitating Federated Service (i.e. X-as-a-Service) 14
15. Serverless is an extension of your enablement teams © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
16. E E 1 fo r th e v a lu e s tr e a m te a m Enablement teams focus with Serverless 2 u s in g a u to m a tio n a n d s h ift le ft m in d s e 3 a c r o s s a d is tr ib u te d s y s te © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
17. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Culture © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 17
18. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Decentralize & Empower © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 18
19. Developing a culture of serverless-first Form CCOE Quick Wins Leadership Support Form Cloud Center of Excellence. Deliver strategic “light house” modernized workloads Establish clear vision and support from leadership 1 2 3 Best Practices Evangelize Reorganize Build reusable patterns, reference architecture, and shared services Community Building and Enablement 4 5 © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. Decentralize CCOE function and federate across the organization 6 19
20. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER System Architecture © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 20
21. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Evolutionary Architecture © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 21
22. G 1 to e x p r e s s in y o u r s y s te Architecture begins with 2 to id e n tify th e r ig h t p a tte r n s to a p p l W x 3 © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
23. A spectrum of compute for different needs m a z o n EC W © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. x F W x n W x
24. Selecting services that fit your strategy 1 Step One Start with the highest abstraction 2 Step Two Move to a lower abstraction when needed 3 Step Three Iterate and evolve © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
25. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Design Principles © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 25
26. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER Modularity © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 26
27. Modularity: the quality of consisting of separate parts that, when combined, form a complete whole. Cambridge Dictionary © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
28. A system lacks modularity when a tweak to one of its components affects the functioning of others. Cambridge Dictionary © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
29. Modularity using code © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. • Strong encapsulation • Large usage of design patterns • Decouple business logic from environment • Developers discipline
30. Modularity using infrastructure © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. • More options to express your intents • Configuration over code • Many common built-in behaviors • More control on what to develop
31. Architecture and patterns enabled by Serverless Microservices Event-Driven Architectures © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. Data Architectures Integration Patterns 31
32. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER How to design a workload using Serverless © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved. 32
33. Business requirements • Gift code service for an e-commerce • Gift codes can be generated by the system or 3 rd party companies • For every gift code consumption we need to  Notify the customer support team  Update the user’s account history  If the gift code was issued by 3 rd party company notify them © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 33
34. Workload Characteristics • 99.99% availability on critical path • 99.9% availability on the rest of the system • Events to communicate across bounded context • Under 1 second response time for the user facing APIs • Scale to up 3000 TPS with 50% headroom … © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 34
35. High-level architecture 3 rd Party Gift Code Systems Gift Code Service User Account CRM © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 35
36. Architectural characteristics © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 36
37. Team topology Platform Team Security Team Architecture Team © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 37
38. Serverless implementation • Synchronous API • Quick acknowledgment for the users • Only part that needs to scale based on users traffic • DynamoDB Streams becomes the glue with the asynchronous part of the system © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 38
39. Serverless implementation • Synchronous API • Step Functions orchestrates different services to generate or update gift codes • API Gateway helps to mitigate eventual traffic spikes from 3 rd party services © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 39
40. Serverless implementation • Events allow the decoupling of producers and consumers • DynamoDB Streams notifies every change in the DynamoDB table • EventBridge Pipes enrich the information received for downstream services • EventBridge is the message broker © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 40
41. Serverless implementation • Some 3 rd party systems accepts an API calls in the format defined by your system • Some others require to translate from JSON to XML or any other format • More architectural patterns are also applicable © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 41
42. Serverless implementation • CRM has API limits so a queue helps us to ease the traffic • User account uses a Lambda function to manipulate the event and then integrate inside their bounded context © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 42
43. Ready for the future… New partners Data Lake © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved. 43
44. Express your architecture characteristics and business requirements into infrastructure focusing on YOUR BUSINESS goals © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
45. G n not build W SOFTWARE Frederick Brooks (Computer Architect) © yyyy, Amazon Web Services, Inc. or its affiliates. All rights reserved.
46. UPDATE THIS PRESENTATION HEADER IN SLIDE MASTER 谢谢 Luca Mezzalira lmezza@amazon.com © yyyy, Amazon Web Services, Inc. or its affiliates. rights reserved. © yyyy, Amazon Web Services, Inc. or its All affiliates. All rights reserved.

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