Tencent Egg.js Serverless Component

简体中文 | English

Introduction

Egg.js Serverless Component for Tencent Cloud.

Content

1. Prepare
2. Install
3. Create
4. Configure
5. Deploy
6. Remove

0. Prepare

Init Egg Project

$ mkdir egg-example && cd egg-example
$ npm init egg --type=simple
$ npm i

Change Egg Config

When cloud funtion executing, only /tmp folder is writable, so we need change the folder of logging for egg.js, then we change the configuration in config/config.default.js as below:

const config = (exports = {
  env: 'prod', // prod is recommended
  rundir: '/tmp',
  logger: {
    dir: '/tmp'
  }
})

1. Install

Install the Serverless Framework globally:

$ npm install -g serverless

2. Create

In project root, create the following simple boilerplate:

$ touch serverless.yml
$ touch .env           # your Tencent api keys

Add the access keys of a Tencent CAM Role with AdministratorAccess in the .env file, using this format:

# .env
TENCENT_SECRET_ID=XXX
TENCENT_SECRET_KEY=XXX

• If you don't have a Tencent Cloud account, you could sign up first.

3. Configure

# serverless.yml

MyComponent:
  component: '@serverless/tencent-egg'
  inputs:
    region: ap-guangzhou
    functionName: egg-function
    runtime: Nodejs8.9
    code: ./
    functionConf:
      timeout: 10
      memorySize: 128
      environment:
        variables:
          TEST: vale
      vpcConfig:
        subnetId: ''
        vpcId: ''
    apigatewayConf:
      protocols:
        - https
      environment: release

• More Options

Notice: Now, runtime is default Nodejs8.9, for deployed project using Nodejs8.9, should set runtime to Nodejs8.9 manually for updating.

4. Deploy

$ 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 ─ Executing the template's components graph.
  DEBUG ─ Compressing function egg-function file to /Users/yugasun/Desktop/Develop/serverless/tencent-egg/example/.serverless/egg-function.zip.
  DEBUG ─ Compressed function egg-function file successful
  DEBUG ─ Uploading service package to cos[sls-cloudfunction-ap-guangzhou-code]. sls-cloudfunction-default-egg-function-1584348537.zip
  DEBUG ─ Uploaded package successful /Users/yugasun/Desktop/Develop/serverless/tencent-egg/example/.serverless/egg-function.zip
  DEBUG ─ Creating function egg-function
  egg-function [████████████████████████████████████████] 100% | ETA: 0s | Speed: 4422.09k/s
  DEBUG ─ Updating code...
  DEBUG ─ Updating configure...
  DEBUG ─ Created function egg-function successful
  DEBUG ─ Setting tags for function egg-function
  DEBUG ─ Creating trigger for function egg-function
  DEBUG ─ Deployed function egg-function successful
  DEBUG ─ Starting API-Gateway deployment with name ap-guangzhou-apigateway in the ap-guangzhou region
  DEBUG ─ Using last time deploy service id service-jkcevoqw
  DEBUG ─ Updating service with serviceId service-jkcevoqw.
  DEBUG ─ Endpoint ANY / already exists with id api-et0yjwci.
  DEBUG ─ Updating api with api id api-et0yjwci.
  DEBUG ─ Service with id api-et0yjwci updated.
  DEBUG ─ Deploying service with id service-jkcevoqw.
  DEBUG ─ Deployment successful for the api named ap-guangzhou-apigateway in the ap-guangzhou region.

  MyEgg:
    functionName:        egg-function
    functionOutputs:
      ap-guangzhou:
        Name:        egg-function
        Runtime:     Nodejs8.9
        Handler:     serverless-handler.handler
        MemorySize:  128
        Timeout:     10
        Region:      ap-guangzhou
        Namespace:   default
        Description: This is a template function
    region:              ap-guangzhou
    apiGatewayServiceId: service-jkcevoqw
    url:                 https://service-jkcevoqw-1251556596.gz.apigw.tencentcs.com/release/
    cns:                 (empty array)

  23s › MyEgg › done

Notice: sls is short for serverless command.

5. Remove

$ sls remove --debug

  DEBUG ─ Flushing template state and removing all components.
  DEBUG ─ Removed function egg-function successful
  DEBUG ─ Removing any previously deployed API. api-et0yjwci
  DEBUG ─ Removing any previously deployed service. service-jkcevoqw

  10s › MyEgg › done

Notice!!!

After egg project initialed, it will create app/public directory automatically. But when deploying, because it is empty, so this directory will not be uploaded. So when egg application start up, it will try to create app/public directory, but it can not write to it. So please create empty file .gitkeep in app/public directory.

More Components

Checkout the Serverless Components repo for more information.