在GAE中发布nestjs应用程序

时间:2018-07-22 16:00:34

标签: google-app-engine nestjs

我正在学习nestjs,我遵循了step by step

该应用程序正常运行。但是我想将其作为微服务发布到我的GAE中。我也能做得很好,但是当我在GPC中调用地址时,出现错误502-错误的网关。

我相信这是我的package.json文件中的内容。但是我还没有弄清楚。以下是依赖项配置:

   "dependencies": {
   "@ nestjs / common": "^ 5.0.0",
   "@ nestjs / core": "^ 5.0.0",
   "@ nestjs / microservices": "^ 5.0.0",
   "@ nestjs / testing": "^ 5.0.0",
   "@ nestjs / websockets": "^ 5.0.0",
   "reflect-metadata": "^ 0.1.12",
   "rxjs": "^ 6.0.0",
   "typescript": "^ 2.8.0",
   "ts-node": "^ 6.0.0",
   "tsconfig-paths": "^ 3.3.1"
   },

这是我的入门指导:

"start": "ts-node -r tsconfig-paths/register src/main.ts",

最后,我的app.yaml:

env: flex 
runtime: nodejs 
service: nestapp

3 个答案:

答案 0 :(得分:1)

您可以从AppEngine Typescript示例项目开始:

https://github.com/GoogleCloudPlatform/nodejs-docs-samples/tree/master/appengine/typescript

它已经具有所有打字稿编译工具的设置。您需要的关键行在package.json脚本中:

"build": "tsc -p tsconfig.build.json",
"gcp-build": "npm run build"

"gcp-build"是保留的任务名称,在部署AppEngine NodeJS项目时始终如此。这将确保您的TypeScript在部署时被编译为JavaScript。您可以在此处了解更多信息:

https://cloud.google.com/appengine/docs/standard/nodejs/running-custom-build-step

一旦您运行了TypeScript和Express,就可以将Nest替换成Express!您还需要更改其他一些东西,即AppEngine用于运行应用程序的package.json中的入口点:

"main": "dist/main.js",

Nest应用程序src / main.ts中的端口:

const PORT = Number(process.env.PORT) || 8080;
await app.listen(PORT);

在您的app.yaml中,仅使用标准环境删除env: flex,它更便宜!

runtime: nodejs10

最后,完整的package.json文件如下所示:

{
  "name": "appengine-nest",
  "description": "An example TypeScript app running on Google App Engine.",
  "version": "0.0.1",
  "author": "kmturley",
  "license": "MIT",
  "engines": {
    "node": ">=8.0.0"
  },
  "main": "dist/main.js",
  "scripts": {
    "prepare": "npm run build",
    "pretest": "npm run build",
    "build": "tsc -p tsconfig.build.json",
    "deploy": "gcloud app deploy",
    "lint": "tslint -p tsconfig.json -c tslint.json",
    "start": "node ./dist/main.js",
    "start:dev": "nodemon",
    "start:debug": "nodemon --config nodemon-debug.json",
    "test": "repo-tools test app -- dist/main.js",
    "gcp-build": "npm run build"
  },
  "dependencies": {
    "@nestjs/common": "^5.6.2",
    "@nestjs/core": "^5.6.2",
    "express": "^4.16.3",
    "nodemon": "^1.18.9",
    "reflect-metadata": "^0.1.13",
    "rxjs": "^6.3.3",
    "ts-node": "^8.0.2",
    "tsconfig-paths": "^3.7.0",
    "typescript": "^3.0.1"
  },
  "devDependencies": {
    "@google-cloud/nodejs-repo-tools": "^3.0.0",
    "@types/express": "^4.16.0",
    "tslint": "^5.11.0"
  }
}

我在这里创建了一个示例项目:

https://github.com/kmturley/appengine-nest-angular

答案 1 :(得分:1)

所需的更改

nest new <project>

是:

package.json (主要属性和一些脚本)

{
    ...
+  "main": "dist/main.js",
   "scripts": {
...
-    "build": "nest build",
+    "build": "tsc -p tsconfig.build.json",
+    "gcp-build": "npm run build",
...
-    "start": "nest start",
+    "start": "node ./dist/main.js",    
   }
...
}

src/main.ts (添加要监听的端口环境变量)

async function bootstrap() {
   const app = await NestFactory.create(AppModule);
-  await app.listen(3000);
+  const PORT = Number(process.env.PORT) || 8080;
+  await app.listen(PORT);
 }
 bootstrap();

另外建议在 package.json 脚本上添加部署脚本

使用 devDependency @google-cloud/nodejs-repo-tools

 +    "deploy": "gcloud app deploy"

注意:解决方案是@Kim T,我只是以这种方式添加它,因为我无法快速阅读和执行它

答案 2 :(得分:0)

我认为您需要pm2之类的东西,或者需要pm2的docker。因为您需要启动服务器并侦听特定端口上的妖魔。希望对您有帮助