Cloud Run：容器镜像构建，但 Koa 服务器无法启动

Question

我有一台在本地运行良好但在云上运行不正常的服务器。

Deploying container to Cloud Run service [testserver] in project [buyusedshopify] region [us-central1]
X Deploying... Cloud Run error: Container failed to start. Failed to start and then listen 
on the port defined by the PORT environment variable. Logs for this revision might contain 
more information.                                                                          
  X Creating Revision... Cloud Run error: Container failed to start. Failed to start and th
  en listen on the port defined by the PORT environment variable. Logs for this revision mi
  ght contain more information.                                                            
  . Routing traffic...                                                                     
Deployment failed                                                                          
ERROR: (gcloud.run.deploy) Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.

我的 Dockerfile：

FROM node:12-slim

# Create app folder
WORKDIR /usr/src/app

# Install app deps. Copy the lock file
COPY package*.json ./
RUN npm install

ENV SCOPES=read_products,write_products,unauthenticated_read_product_listings \
    SHOPIFY_API_KEY=removed \
    SHOPIFY_API_SECRET=removed \
    CLIENT_APP_URL=placeholder

COPY build ./
CMD ["node", "server.js"]

package.json

"buildImage": "gcloud builds submit --tag gcr.io/buyusedshopify/testserver",
"deployCloudRun": "gcloud run deploy --image gcr.io/buyusedshopify/testserver --platform managed",
"buildAndDeploy": "npm run buildImage && npm run deployCloudRun",

这是src 中的 server.ts 文件，它编译为 .js 等效项

import path from "path";
require("dotenv").config();
console.log(process.env, `=====process.env=====`);

import Koa from "koa";
import Router from "koa-router";
import session from "koa-session";
import authorizeForShopify, {verifyRequest} from "@shopify/koa-shopify-auth";

const koa = new Koa();
const router = new Router();

const {SHOPIFY_BUYUSED_API_KEY, SHOPIFY_BUYUSED_API_SECRET, SHOPIFY_BUYUSED_SCOPES} = process.env;

koa.keys = [SHOPIFY_BUYUSED_API_SECRET];
koa.use(session({secure: true, sameSite: "none"}, koa));


koa.use(authorizeForShopify({
  apiKey : SHOPIFY_BUYUSED_API_KEY
  , secret : SHOPIFY_BUYUSED_API_SECRET
  , scopes : SHOPIFY_BUYUSED_SCOPES.split(",")
  , afterAuth(ctx: Koa.Context): void {
    console.log(`=====inside afterAuth()=====`);
    const {shop, accessToken} = ctx.session;

    console.log({
      message : "from inside afterAuth()"
      , shop
      , accessToken
    });

    ctx.redirect("/");
  }
}));


router.get('/', async ctx => {
  ctx.body = "Koa server running, '/' route triggered"
});

router.get('/2nd', async ctx => {
  ctx.response.body = "2nd route message";
});

////// Protected Routes //////
koa.use(verifyRequest());



koa.use(router.routes())
  .use(router.allowedMethods());

const port: number = Number(process.env.PORT) || 3000;

koa.listen(port, undefined, undefined, () => console.log(`=====Koa listening on port ${port.toString()}=====`));

知道问题是什么吗？当最小化为单个路由，然后是侦听方法时，它更早地工作。从那以后，我添加了 shopify 相关库、一些路由和 dotenv 用于本地环境处理。

备注

1. build 没有被 .gitignored。 Dockerfile 或谷歌云没有忽略文件。我只是 .gitignore ing node_modules、.idea 和 .env
2. 我正在运行 npm 脚本buildAndDeploy。构建始终有效，部署到 Cloud Run 始终失败。

也试过了

COPY build ./ // in Dockerfile CMD ["node", "build/server.js"]（使用上述COPY命令时）

编辑

评论和相关的 SO 帖子建议将 PORT 变量设置为 8080。

我将这样做作为后备，但检查我在下面发布的解决方案，您可以看到实际错误出现在 COPY 和 CMD 语句的 Dockerfile 配置中。 Dockerfile 中的 .env 中没有反映更新后的名称也存在 Env 变量问题。

Answer 1

进行了三处更改：

1. .env 中的环境变量名称已更改，但在 Dockerfile 中未更新，已修复
2. COPY build ./ 必须是 COPY build ./build 才能镜像本地路径。
3. 我将脚本命令更新为 CMD ["node", "build/server.js] 以说明从 COPY 语句中移动的文件。

通过这三个修复，服务器配置应该镜像本地主机。已在 Cloud Run 上成功部署。