In the cloud native era, developers should have these five capabilities

【CSDN  Editor's note 】 Ten years ago ,Netscape founder 、 Mark, the famous investor in Silicon Valley · Anderson （Marc Andreessen） Prophesy “ Software is eating up the world ”; Several years later , In software 90% The above code is open source ,“ Open source is eating up software ”; Now ,“ Cloud native devours open source ”, Open source projects are evolving to cloud . In the face of a new era —— The arrival of cloud primordial , What knowledge and abilities should developers have ？

stay 《 New programmers 003： Cloud native and comprehensive digital practices 》 in , We specially invite people with 20 Years of experience in Internet and financial architecture ,MegaEase Founder Chen Hao （ Left ear mouse ） Write an article on cloud native ！

author | Mouse with left ear （ Chen Hao ）        Coordinating editor | Zhang Hongyue

Produce | 《 New programmers 》 Editorial Office

The maturity of virtualization technology and the popularity of distributed frameworks , Making applications available to the cloud is no longer a difficult problem for enterprise transformation , The era of cloud primordial has quietly arrived , What follows is the upgrading of technology to cloud native architecture . that , During this upgrade , What knowledge and capabilities do developers need in the cloud generation era ？

Chen Hao （ Mouse with left ear ）,20 Years of experience in Internet and financial architecture ,MegaEase founder 、 Former senior architect of Alibaba cloud 、 Tmall development director 、 Senior R & D Manager of Amazon 、 Thomson Reuters Infrastructure Architect and senior R & D Manager . experienced “ double 11”、 Alibaba cloud 、AWS、Amazon Warehouse forecast 、 Real time financial data publishing platform 、 Large scale parallel computing and other projects and product development .

Now , The whole digitalization process is changing from “ Enterprise side （ The enterprise meets the internal IT demand ）” to turn to “ The user side （ Enterprises meet the needs of external users ）”. Enterprises that cannot perceive and meet the needs of end users will lose competitiveness . In order to meet the digital needs of the user side , Bottom layer required IT Infrastructure meets at least the following five characteristics ：

1. Adapt to and respond to the rapidly changing needs of users ;

2. Support large-scale user online activities ;

3. The system is more stable , There is a higher SLA（ Service level agreement );

4. Open Ecology , Access more data , Carry out intelligent operation ;

5. More autonomy and lower cost .

A system that meets these five capabilities , It is not simply built with some open source software or several system integrators , Instead, there is top-down design and Planning , And a large number of professional software technology and program composition .

Under this requirement , Software and application architecture are important factors that can really bring strength to enterprises , It can be exaggerated to say ： As long as the software architecture is well done , Basic resources become less important . The basic resources mentioned here do not mean Serverless/FaaS、Service Mesh、Kubernetes、API management 、 Microservices 、 Overall architecture observability 、DevOps…… Due to the emergence of cloud nativity, the direction of cloud computing has changed from resource-based to service-oriented . therefore , They are all in the application service layer , It is no longer a basic resource .

Knowledge and skills developers need to master in the cloud Era

Under the tide of new digital transformation demand , The whole industry is also changing from traditional monomer applications / Centralized SOA The Architecture tends to be more loose 、 Distributed 、 Standard microservice architecture . Microservice architecture starts from universal middleware ESB（Enterprise Service Bus, Enterprise service bus ） Centralized architecture , It turns into the control logic with SDK In the decentralized architecture of services , Later, it evolved into decoupling of control logic and business logic , With Service Mesh Cloud native service architecture for architecture . This evolution is to solve a problem ： The architecture of distributed microservices is extremely complex , Pose a high challenge to the operation and maintenance ability .

therefore , A complete set of control system with high technical threshold is required 、 Scheduling system and comprehensive observational system . These systems should not be re coupled or intruded into business logic , It is built by a dedicated infrastructure or platform team , Only when enterprises are carrying out digital transformation can they focus more on solving business problems , And make all business teams enjoy unified and standard technical capabilities .

therefore , Under the guidance of this direction , As a developer in the cloud age , We need to have the following knowledge and abilities .

1. Micro service splitting and layering . Business splitting is actually a business architecture capability , You need to be familiar with the business and abstract it 、 Decoupling and extracting common functions . This is a process from code base to software package , And then to the overall splitting of the database , And stacked layer by layer ;

2. API Interface . All program modules must pass through the service interface API Protect its data , And be ready to open to the outside world at any time ;

3. Unlimited scalability and the ability to migrate at any time . All application services and middleware need to be designed to be infinitely scalable , With the traditional Iaa Stratiform clouds are linked ;

4. Service governance . Including service registration discovery 、 Service traffic routing scheduling 、 Configuration Management 、 health examination 、 Communication between services 、 The resilience of the service （ Isolation 、 Current limiting 、 retry 、 idempotent 、 Fuse 、 Downgrade ……）, And service observability （ journal 、 The pointer 、 Call chain tracing 、 Performance ranking, etc ）;

5. Distributed middleware . Including distributed databases 、 Distributed cache 、 Distributed message queuing 、 Distributed big data processing, etc .

Uncover the impact and opportunities that cloud native technology brings to enterprises and individuals

《 New programmers 003》 From the perspective of developers in the cloud native era , Focus on the analysis of the new generation of cloud native software architecture and the current situation and trend of cloud native technology , Many cloud native technology witnesses share containers and... From different perspectives Kubernetes、 Service Grid 、 Distributed framework and service governance 、 The practical experience of Yunyuan biochemical stateful service and other technologies , And cloud native technology in finance 、 telecom 、 Application examples of Internet and other industries , So as to uncover the impact and opportunities that cloud native technology brings to enterprises and individuals , I hope it can provide reference for developers in the cloud native era .

《 New programmers 003》 Cloud native Theme Directory

《 New programmers 003》 That is to clear the fog for all developers , Talk about the development of cloud primary Era .

First , How to accurately define cloud native ？ What key technologies does it contain ？ Alibaba cloud container service technical expert 、《 Cloudy and mixed clouds ： Cloud native multi cluster and application management 》 Author Hao Shuwei combed these two problems clearly , Through his article , You can understand the cloud native technology .

Clear definition and technology , So for developers in the cloud native era , What knowledge and abilities are needed ？ The left ear mouse answered the question . He suggested that , Cloud native developers need to master micro service splitting and layering 、API Interface 、 Unlimited scalability and migration at any time 、 Service governance 、 Distributed middleware, etc .

In terms of technology trends ,Kubernetes Be born 7 It has developed rapidly in recent years , It has become the original era of cloud 「Android」 System . In this issue ,Kubernetes cofounder Brendan Burns In depth sharing Kubernetes Technological change and future evolution , It's an article worth reading by all developers .

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