↓Skip to main content

Serverless Dev

·1143 words·6 mins
WFUing
Author
WFUing
A graduate who loves coding.
Table of Contents

Serverless Devs 是一个开源开放的 Serverless 开发者平台，致力于为开发者提供强大的工具链体系。通过该平台，开发者不仅可以一键体验多云 Serverless 产品，极速部署 Serverless 项目，还可以在 Serverless 应用全生命周期进行项目的管理，并且非常简单快速的将 Serverless Devs 与其他工具/平台进行结合，进一步提升研发、运维效能。

平台/产品支持
#

目前 Serverless Devs 项目已经支持的 FaaS 平台/产品：

项目期望
#

  • Serverless Devs 希望可以为 Serverless 开发者们提供一款可以无厂商锁定的，可以在 Serverless 应用全生命周期发挥作用的 Serverless 开发者工具；
  • Serverless Registry 希望可以为 Serverless 生态提供一套完整的包管理规范，与 Python 中的 pypi， Nodejs 中的 npm 等类似，将以此来开放和分享 Serverless Package，建设 Serverless 生态；
  • Serverless Developer Meetup 希望可以打造最符合 Serverless 开发者的社区活动，通过这个活动，希望更多人可以一起交流、学习 Serverless 相关的产品；

快速上手
#

本快速上手案例以 阿里云函数计算 为例的快速上手 Serverless Devs

工具安装
#

  • 第一步：安装 Node.js(>=12.0.0) 与 NPM 包管理工具；
  • 第二步：安装 Serverless Devs 开发者工具； 
    $ npm install @serverless-devs/s -g
  • 第三步：可以通过s -v判断工具是否安装成功，如果安装成功可以看到相对应的版本信息，例如： 
    @serverless-devs/s: 2.1.2, core: 0.1.41, s-home: /Users/xxx/.s, darwin-x64, node-v17.7.1

密钥配置
#

以阿里云密钥配置为例：

  • 获取密钥页面：https://usercenter.console.aliyun.com/#/manage/ak

  • 打开 获取密钥页面 获取密钥信息 ：

  • 执行s config add，并选择Alibaba Cloud (alibaba)：

    $ s config add 
? Please select a provider: Alibaba Cloud (alibaba)
🧭 Refer to the document for alibaba key:  http://config.devsapp.net/account/alibaba
? AccessKeyID:

  • 此时，可以按照引导，进行密钥的配置：

    ? Please select a template: Alibaba Cloud (alibaba)
🧭 Refer to the document for alibaba key:  http://config.devsapp.net/account/alibaba
? AccessKeyID 此处填写AccessKeyID
? AccessKeySecret 此处填写AccessKeySecret
? Please create alias for key pair. If not, please enter to skip alibaba-access

    Alias: alibaba-access
    AccountID: 自动获取AccountID
    AccessKeyID: 此处填写AccessKeyID
    AccessKeySecret: 此处填写AccessKeySecret

✔ Configuration successful

  • 为了验证密钥是否正确配置，可以通过s config get -a alibaba-access进行指定密钥的查看：

    $ s config get -a alibaba-access
alibaba-access:
  AccountID: 此处填*******tID
  AccessKeyID: 此处填*********yID
  AccessKeySecret: 此处填*************ret

上手体验
#

Serverless：Hello World
#

  • 执行s命令：

    $ s
? No Serverless-Devs project is currently detected. Do you want to create a new project? (Y/n)

  • 填写y，并按回车，可以进入到创建引导部分：

    🚀 More applications: https://registry.serverless-devs.com

? Hello Serverless for Cloud Vendors (Use arrow keys or type to search)
❯ Alibaba Cloud Serverless 
  AWS Cloud Serverless 
  Baidu Cloud Serverless 
  Huawei Cloud Serverless 
  Tencent Cloud Serverless 
  Dev Template for Serverless Devs

  • 此时只需要选择对应的选项，按照引导进行操作，即可。例如选择Alibaba Cloud Serverless，就可以看到阿里云Serverless产品下的应用模板分类:

     ? Hello, serverlesser. Which template do you like? (Use arrow keys or type to search)
 ❯ Quick start [Deploy a Hello World function to FaaS]
   Container example [Deploy function to FaaS with custom-container]
   Web Framework [Deploy a web framework to FaaS]
   Static website [Deploy a static website]
   Best practice [Experience serverless project]

  • 此时可以继续选择某分类下的具体应用进行初始化，例如选择Quick start之后，可以看到该分类下的具体模板应用：

    ? Which template do you like? (Use arrow keys or type to search)
❯ [HTTP] Node.js 14  - 快速部署一个 nodejs14 http函数 
  [HTTP] Python3     - 快速部署一个 python3 http函数 
  [HTTP] Java8       - 快速部署一个 java8 http函数 
  [HTTP] PHP7        - 快速部署一个 php http函数 
  [HTTP] C++ (custom)- 快速部署一个 C++ http函数 
  [Event] Node.js 14 - 快速部署一个 nodejs14 event函数
  [Event] Python3    - 快速部署一个 python3 event函数
  ... ...

    选择[HTTP] Node.js 14即可完成创建，在引导的过程中，可能会出现填写项目名称以及选择密钥的过程：

    • 项目名称可以是：start-fc-http-nodejs14
    • 地域可以是：cn-hangzhou
    • 服务名可以是： hello-world-service
    • 函数名可以是： start-fc-http-nodejs14
    • 密钥可以选择我们上文中创建过的：alibaba-access

    例如：

    🚀  More applications: https://registry.serverless-devs.com

? Hello Serverless for Cloud Vendors Alibaba Cloud Serverless
? Hello, serverlesser. Which template do you like? Quick start [Deploy a Hello World function to FaaS]
? Which template do you like? [HTTP] Node.js 14

😋  Create application command: [s init devsapp/start-fc-http-nodejs14]

? Please input your project name (init dir) start-fc-http-nodejs14
✔ file decompression completed

Serverless Devs Application Case

   Cloud services required：
   - FC : https://fc.console.aliyun.com/

   Tips：
   - FC Component: https://www.serverless-devs.com/fc/readme
创建应用所在的地区
? 地域 cn-hangzhou
服务名称，只能包含字母、数字、下划线和中划线。不能以数字、中划线开头。长度在 1-128 之间
? 服务名 hello-world-service
函数名称，只能包含字母、数字、下划线和中划线。不能以数字、中划线开头。长度在 1-64 之间
? 函数名 start-fc-http-nodejs14
? please select credential alias alibaba-access

   * Before using, please check whether the actions command in Yaml file is available
   * Carefully reading the notes in s.yaml is helpful for the use of the tool
   * If need help in the use process, please apply to join the Dingtalk Group: 33947367

🏄‍  Thanks for using Serverless-Devs
👉  You could [cd /Users/nanxuanli/work/demo/devs/start-fc-http-nodejs14] and enjoy your serverless journey!
🧭️  If you need help for this example, you can use [s -h] after you enter folder.
💞  Document ❤ Star: https://github.com/Serverless-Devs/Serverless-Devs
🚀  More applications: https://registry.serverless-devs.com

? Do you want to deploy the project immediately? (Y/n)

  • 可以看到，系统在最后有一个提醒，是否要部署该项目，此时可以输入y，直接进行项目的部署，稍等片刻，可以看到部署结果：

    helloworld: 
  region:   cn-hangzhou
  service: 
    name: hello-world-service
  function: 
    name:       start-fc-http-nodejs14
    runtime:    nodejs14
    handler:    index.handler
    memorySize: 128
    timeout:    60
  url: 
    system_url:    https://start-fp-nodejs-hello-w-service-uxcvfbhdii.cn-hangzhou.fcapp.run
    custom_domain: 
      - 
        domain: http://start-fc-http-nodejs14.hello-world-service.1816647648916833.cn-hangzhou.fc.devsapp.net
  triggers: 
    - 
      type: http
      name: httpTrigger

    此时可以打开domain返回给我们的域名，进行测试。

人工智能：目标检测
#

  • 初始化一个已有的人工智能目标检测项目：s init devsapp/image-prediction-app，初始化过程中可能会出现填写项目名称以及选择密钥的过程：

    • 项目名称可以是：image-prediction-app
    • 密钥可以选择我们上文中创建过的：alibaba-access

    例如：

    $ s init devsapp/image-prediction-app

🚀 Serverless Awesome: https://github.com/Serverless-Devs/package-awesome

? Please input your project name (init dir) image-prediction-app
✔ file decompression completed
? please select credential alias alibaba-access

     ___   __   __  _______  _______  _______ 
    |   | |  |_|  ||   _   ||       ||       |
    |   | |       ||  |_|  ||    ___||    ___|
    |   | |       ||       ||   | __ |   |___ 
    |   | |       ||       ||   ||  ||    ___|
    |   | | ||_|| ||   _   ||   |_| ||   |___ 
    |___| |_|   |_||__| |__||_______||_______|


    Welcome to the image-prediction-app application
     This application requires to open these services: 
         FC : https://fc.console.aliyun.com/
     This application can help you quickly deploy the image-prediction-app project.
     The application uses FC component：https://github.com/devsapp/fc
     The application homepage: https://github.com/devsapp/image-prediction-app


🏄‍ Thanks for using Serverless-Devs
👉 You could [cd /Users/jiangyu/start-application/image-prediction-app] and enjoy your serverless journey!
🧭️ If you need help for this example, you can use [s -h] after you enter folder.
💞 Document ❤ Star：https://github.com/Serverless-Devs/Serverless-Devs

  • 进入项目目录：cd image-prediction-app

  • 通过deploy命令进行项目的部署：

    Tips for next step
======================
* Display information of the deployed resource: s info
* Display metrics: s metrics
* Display logs: s logs
* Invoke remote function: s invoke
* Remove Service: s remove service
* Remove Function: s remove function
* Remove Trigger: s remove trigger
* Remove CustomDomain: s remove domain



imageAi: 
  region: cn-hangzhou
  url: 
    custom_domain: 
      - 
        domain: http://server.ai-cv-image-prediction.1583208943291465.cn-hangzhou.fc.devsapp.net

  • 此时可以打开系统分配的测试域名，并上传一张图片进行测试。

传统框架：基于Django的博客项目
#

  • 初始化一个已有的基于Django的博客项目：s init django-blog，初始化过程中可能会出现填写项目名称以及选择密钥的过程：

    • 项目名称可以是：django-blog
    • 密钥可以选择我们上文中创建过的：alibaba-access

    例如：

    $ s init django-blog

🚀 Serverless Awesome: https://github.com/Serverless-Devs/package-awesome

? Please input your project name (init dir) django-blog
✔ file decompression completed
? please select credential alias alibaba-access

     ______       ___  _______  __    _  _______  _______  _______  ___      _______  _______ 
    |      |     |   ||   _   ||  |  | ||       ||       ||  _    ||   |    |       ||       |
    |  _    |    |   ||  |_|  ||   |_| ||    ___||   _   || |_|   ||   |    |   _   ||    ___|
    | | |   |    |   ||       ||       ||   | __ |  | |  ||       ||   |    |  | |  ||   | __ 
    | |_|   | ___|   ||       ||  _    ||   ||  ||  |_|  ||  _   | |   |___ |  |_|  ||   ||  |
    |       ||       ||   _   || | |   ||   |_| ||       || |_|   ||       ||       ||   |_| |
    |______| |_______||__| |__||_|  |__||_______||_______||_______||_______||_______||_______|


    Welcome to the django-blog application
     This application requires to open these services: 
         FC : https://fc.console.aliyun.com/
     This application can help you quickly deploy the django-blog project.
     The application uses Django component：https://github.com/devsapp/django
     The application homepage: https://github.com/devsapp/django-blog

     * Python 3.7 is recommended;
     * If the version is greater than Python 3.7: 
        * Operation error: ImportError: cannot import name 'metadata' from 'importlib', you can refer to: https://stackoverflow.com/questions/59216175/importerror-cannot-import-name-metadata-from-importlib
     * Default information:
        * Admin：/admin
        * Default Admin Username: blog
        * Default Admin Password: myblog12345!     



🏄‍ Thanks for using Serverless-Devs
👉 You could [cd /Users/jiangyu/django-blog] and enjoy your serverless journey!
🧭️ If you need help for this example, you can use [s -h] after you enter folder.
💞 Document ❤ Star：https://github.com/Serverless-Devs/Serverless-Devs

  • 进入项目目录：cd django-blog

  • 通过deploy命令进行项目的部署：

    Tips for next step
======================
* Invoke remote function: s invoke
✔ Try container acceleration
djangoBlog: 
  region:        cn-shenzhen
  serviceName:   serverless-devs-django
  functionName:  django
  customDomains: 
    - http://django.serverless-devs-django.1583208943291465.cn-shenzhen.fc.devsapp.net

Resources
#