云函数 SCF 组件

最近更新时间:2019-11-25 13:03:10

操作场景

云函数 SCF 组件是 serverless-tencent 组件库中的基础组件之一。通过云函数 SCF 组件,可以快速切方便地创建、配置和管理腾讯云的云函数 SCF。

操作步骤

通过 SCF 组件,您可以对一个云函数进行完整的创建、配置、部署和删除等操作。支持命令如下:

安装

通过 npm 安装 Serverless:

$ npm install -g serverless

创建

$ mkdir my-function
$ cd my-function

目录内容如下:

|- code
  |- index.js
|- serverless.yml

对于该例子可以使用以下 Demo,作为 index.js:

'use strict';
exports.main_handler = async (event, context, callback) => {
    console.log("%j", event);
    return "hello world"
};

配置

本地创建 serverless.yml 文件,在其中进行如下配置:

$ touch serverless.yml
# serverless.yml
myFunction1:
  component: "@serverless/tencent-scf"
  inputs:
    name: myFunction1
    codeUri: ./code       # 代码目录
    handler: index.main_handler
    runtime: Nodejs8.9
    region: ap-guangzhou
    description: My Serverless Function
    memorySize: 128
    timeout: 20
    # 打包 zip 时希望忽略的文件或者目录配置(可选)
    exclude:
      - .gitignore
      - .git/**
      - node_modules/**
      - .serverless
      - .env
    include:
          - /Users/dfounderliu/Desktop/temp/.serverless/myFunction1.zip
    environment:
      variables:
        TEST: vale
    vpcConfig:
      subnetId: ''
      vpcId: ''

myFunction2:
  component: "@serverless/tencent-scf"
  inputs:
    name: myFunction2
    codeUri: ./code

部署

如您的账号未 登录注册 腾讯云,您可以直接通过微信扫描命令行中的二维码进行授权登录和注册。

通过sls命令进行部署,并可以添加--debug参数查看部署过程中的信息:

$ sls --debug

  DEBUG ─ Resolving the template's static variables.
  DEBUG ─ Collecting components from the template.
  DEBUG ─ Downloading any NPM components found in the template.
  DEBUG ─ Analyzing the template's components dependencies.
  DEBUG ─ Creating the template's components graph.
  DEBUG ─ Syncing template state.
  DEBUG ─ Starting Website Removal.
  DEBUG ─ Removing Website bucket.
  DEBUG ─ Removing files from the "my-bucket-1300415943" bucket.
  DEBUG ─ Removing "my-bucket-1300415943" bucket from the "ap-guangzhou" region.
  DEBUG ─ "my-bucket-1300415943" bucket was successfully removed from the "ap-guangzhou" region.
  DEBUG ─ Finished Website Removal.
  DEBUG ─ Executing the template's components graph.
  DEBUG ─ Compressing function myFunction file to /Users/dfounderliu/Desktop/temp/code/.serverless/myFunction.zip.
  DEBUG ─ Compressed function myFunction file successful
  DEBUG ─ Uploading service package to cos[sls-cloudfunction-ap-guangzhou-code]. sls-cloudfunction-default-myFunction-1572519895.zip
  DEBUG ─ Uploaded package successful /Users/dfounderliu/Desktop/temp/code/.serverless/myFunction.zip
  DEBUG ─ Creating function myFunction
  DEBUG ─ Created function myFunction successful

  myFunction: 
    Name:        myFunction
    Runtime:     Nodejs8.9
    Handler:     index.main_handler
    MemorySize:  128
    Timeout:     3
    Region:      ap-guangzhou
    Role:        QCS_SCFExcuteRole
    Description: This is a template function
    UsingCos:    true

  6s › myFunction › done

移除

$ sls remove --debug

  DEBUG ─ Flushing template state and removing all components.
  DEBUG ─ Removed function myFunction successful

  1s › myFunction › done

账号配置(可选)

当前默认支持 CLI 扫描二维码登录,如您希望配置持久的环境变量/密钥信息,也可以本地创建 .env 文件:

$ touch .env # 腾讯云的配置信息

.env 文件中配置腾讯云的 SecretId 和 SecretKey 信息并保存。

# .env
TENCENT_SECRET_ID=123
TENCENT_SECRET_KEY=123
说明: