当我尝试部署nestjs时，弹性豆茎得到错误502坏网关

Question

25

我在Amazon Elastic Beanstalk上运行了一个nest.js应用程序，我的环境已经成功创建，但当我通过亚马逊创建的URL转到我的环境时，我收到了一个502 Bad Gateway nginx/1.6.2错误。我相信Elastic Beanstalk正在运行，但它不起作用，(错误消息)：降级所有实例上的服务都已损坏。

以下服务未运行：web。

mypackage.json配置

{
"name": "demo",
"version": "0.0.1",
"description": "",
"author": "",
"private": true,
"license": "UNLICENSED",
"scripts": {
"build": "nest build",
"format": "prettier --write "src/**/*.ts" "test/**/*.ts"",
"start": "nest start",
"start:dev": "nest start --watch",
"start:debug": "nest start --debug --watch",
"start:prod": "node dist/main",
"lint": "eslint "{src,apps,libs,test}/**/*.ts" --fix",
"test": "jest",
"test:watch": "jest --watch",
"test:cov": "jest --coverage",
"test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
"test:e2e": "jest --config ./test/jest-e2e.json"
},
"dependencies": {
"@nestjs/class-validator": "^0.13.4",
"@nestjs/common": "^9.0.0",
"@nestjs/core": "^9.0.0",
"@nestjs/mongoose": "^9.2.2",
"@nestjs/platform-express": "^9.0.0",
"class-transformer": "^0.5.1",
"class-validator": "^0.14.0",
"mongoose": "^7.0.2",
"reflect-metadata": "^0.1.13",
"rxjs": "^7.2.0"
},
"devDependencies": {
"@nestjs/cli": "^9.0.0",
"@nestjs/schematics": "^9.0.0",
"@nestjs/testing": "^9.0.0",
"@types/express": "^4.17.13",
"@types/jest": "29.2.4",
"@types/node": "18.11.18",
"@types/supertest": "^2.0.11",
"@typescript-eslint/eslint-plugin": "^5.0.0",
"@typescript-eslint/parser": "^5.0.0",
"eslint": "^8.0.1",
"eslint-config-prettier": "^8.3.0",
"eslint-plugin-prettier": "^4.0.0",
"jest": "29.3.1",
"prettier": "^2.3.2",
"source-map-support": "^0.5.20",
"supertest": "^6.1.3",
"ts-jest": "29.0.3",
"ts-loader": "^9.2.3",
"ts-node": "^10.0.0",
"tsconfig-paths": "4.1.1",
"typescript": "^4.7.4"
},
"jest": {
"moduleFileExtensions": [
"js",
"json",
"ts"
],
"rootDir": "src",
"testRegex": ".*\.spec\.ts$",
"transform": {
"^.+\.(t|j)s$": "ts-jest"
},
"collectCoverageFrom": [
"**/*.(t|j)s"
],
"coverageDirectory": "../coverage",
"testEnvironment": "node"
}
}

虽然我尝试在变量中设置端口env为8080，但它不起作用，我认为在我的代码设置中有一些错误

Answer 1

1-在项目的根目录中创建一个Procfile，并添加以下内容。该文件将告诉Elastic Beanstalk引擎运行定义的命令。

web:npm运行部署2-添加一个"；部署"；包.json文件的脚本

"scripts": {
...
"deploy": "npm ci && npm run build && npm run start:prod"
...
}

3-确保您的应用程序可以侦听PORT环境变量。

import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
​
async function bootstrap() {
const app = await NestFactory.create(AppModule);
await app.listen(process.env.PORT || 3000);
}
bootstrap();