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What this article shares to you is about how to carry out Serverless CI/CD automation deployment, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

I will explain how Serverless works, its architectural advantages and the development process of Serverless applications, as well as how to use Serverless CI/CD capabilities for automated deployment.

What is Serverless CI/CD? 1. Serverless introduction

The following figure shows a logical architecture diagram, the top application, and the system resources below. We can provide system resources through virtual machines, containers, databases, storage, and so on. At the same time, we need to maintain these system resources, such as resource application, environment construction, disaster recovery, capacity expansion and so on.

What is Serverless? Serverless is to leave the underlying resources and the operation and maintenance of these resources to the cloud vendors for maintenance. These resources are black boxes for the business, and the business only needs to pay attention to the development of its own business logic.

This architectural idea and method is Serverless.

Serverless literally translates as no server, in fact, it doesn't really need a server, but the server is maintained by the cloud vendor. Serverless is an idea and method of software system architecture, not a software framework, class library or tool. Its core idea is that it does not need to pay attention to the underlying resources, such as CPU, memory and database, but only needs to pay attention to business development.

2. Serverless architecture

The architecture of Severless is shown in the following figure. The client requests the API gateway to be sent, which is processed by the cloud function and returned by calling the underlying resources. Take advantage of automatic scaling of cloud functions to avoid the annoyance of users' operation and maintenance.

Using Severless to develop applications can eliminate the requirements of traditional massive server components and reduce the complexity of development and operation and maintenance. Serverless calls on demand, scales on demand, charges according to use, and reduces startup costs. Since the underlying resource deployment work is solved by cloud vendors, users only need to focus on the development of business logic.

3. CI/CD and Serverless CI/CD

CI/CD is short for continuous integration (Continuous Integration) and continuous deployment (Continuous Deployment). Refers to the automatic execution of a series of scripts in the development process to reduce the probability of development introducing bug, and minimize human intervention in the process of new code from development to deployment.

Based on the pipeline mechanism of CI/CD continuous integration, Serverless CI/CD realizes the full automation of user development and deployment and improves the development efficiency.

Serverless CI/CD application 1. Serverless application development process

To develop a serverless application, you need to take the following steps:

Introduction components: introduce Tencent Cloud packaged severless components (such as tencent-express) for rapid development.

Configure the yml file: the yml file is designed to define the resource configuration of your application organization. Different components correspond to different yml configurations.

Business development: develop, debug and test the user's own business.

Deployment online: release the features that passed the test. For the stability of the business, it is recommended to publish in grayscale.

For more detailed development and deployment guidelines, refer to the official website "Grayscale release and Environment isolation".

Since debugging calls resources such as cloud functions directly in the process of serverless application development, deployment commands need to be executed every time the code is modified, and it is cumbersome to execute the command line repeatedly. Environment isolation and grayscale release are prone to errors if manual configuration, so it needs the support of CI/CD ability.

2. Serverless CI/CD advantage

As mentioned earlier, CI/CD reduces the probability of development introducing bug by automatically executing a series of scripts in the development process, minimizing human intervention in the process of new code from development to deployment.

The main purpose of using Serverless CI/CD is to make use of the existing advantages of CI/CD to automate the development and deployment of serverless, improve the efficiency of development and reduce artificial errors.

The above is how to automate the deployment of Serverless CI/CD, and the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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