Node.js：Google云存储凭据未在生产环境中加载

如何解决Node.js：Google云存储凭据未在生产环境中加载

对于我的快速服务器应用程序，我有一个auth.json文件用于身份验证，该文件在开发中效果很好。在我部署的应用程序中，当我上传一个说错误的文件时，身份验证失败：

错误：无法加载默认凭据。浏览至https://cloud.google.com/docs/authentication/getting-started了解更多信息。

为什么我的身份验证在部署后会失败？

当前，我在此项目中的所有存储桶都是“对Internet公开的”，角色allUsers和服务帐户电子邮件都具有完整的Storage Object Creator / Viewer / Admin角色。 auth.json文件与app.js处于同一层次级别。

这是我的app.js代码，其中包含所有库以及上传图像的发布请求。应当注意，uploadThumb()函数每次都起作用，但是uploadFile是导致以下错误的函数。

const express = require("express");
const bodyParser = require("body-parser");
const _ = require("lodash")
const ejs = require("ejs");
const sharp = require('sharp');
const multer = require("multer");
const fs = require("file-system");
const imageThumbnail = require("image-thumbnail");
const {Storage} = require('@google-cloud/storage');
const storage = new Storage({keyFileName: "auth.json"});
const app = express();

//this writes the user submitted image to the local file system
var localStorage = multer.diskStorage({
  destination: function (req,file,cb) {
    const imageDirect = req.body.categories + "/" + req.body.subcat.charAt(0).toUpperCase() + req.body.subcat.slice(1).replace(/ /g,"-") + "/";
    var dir = "./" + imageDirect;
    if(!fs.existsSync(dir)) {
      fs.mkdirSync(dir);
    }
    cb(null,imageDirect)
  },filename: function (req,cb) {
    let tempImageName = file.originalname;
    req.imageName = tempImageName
    cb(null,tempImageName.replace(/ /g,"-"))
  }
});

var upload = multer({storage: localStorage});

app.post("/upload",upload.single("image"),(req,res) => {

//These define the paths and destinations dynamically
  let cat = req.body.categories;
  let subCatLiteral = req.body.subcat.split(" ");
  let subCat = ""
  for (i=0; i < subCatLiteral.length; i++) {
    var eachWord = subCatLiteral[i].charAt(0).toUpperCase() + subCatLiteral[i].slice(1);
    if (i < subCatLiteral.length-1) {
    subCat = subCat.concat(eachWord + "-");
    } else {
    subCat = subCat.concat(eachWord);
    }
  }
  let img = req.imageName.replace(/ /g,"-");
  let imgTitle = img.split(".")[0];
  let imagePath = cat + '/' + subCat + '/' + img


 //This is uploaded 1st
  async function uploadThumb() { 
    await storage.bucket(thumbs).upload(imgTitle + "-thumb.jpg",{metadata: {cacheControl: "no-cache"},gzip: true,destination: cat + "/" + subCat + "/" + req.body.name.replace(/ /g,"-") + "-thumb.jpg"})
      uploadFile().catch(console.error);
      fs.unlinkSync(imgTitle + "-thumb.jpg")  //deletes file after upload 
  }


//This is uploaded 2nd,causing  the error
  async function uploadFile() {   
    await storage.bucket(bucketName).upload(imagePath,resumable: true,"-") + ".jpg"})
      //deletes file after upload
      fs.unlinkSync(`${cat}/${subCat}/${img}`)
      fs.rmdirSync(`./${cat}/${subCat}/`)
      setTimeout(() => {
        fs.rmdirSync(`./${cat}`)
      },500)
    await listFiles().catch(console.error);
  }


 //This function starts the chain of uploads
 sharp(imagePath) 
     .resize(null,300).toFile(imgTitle + "-thumb.jpg",function(err) {
       if (!err) console.log("image resized");
       uploadThumb().catch(console.error);
   })

  res.redirect("/upload#upload");
});

如果有人知道为什么这在生产中会失败，或者我能在文档中的确切位置找到解决方案，我将不胜感激。

这是向passenger.log报告的最新错误

App 21701 output: Error: Could not load the default credentials. Browse to https://cloud.google.com/docs/authentication/getting-started for more information.
App 21701 output:     at GoogleAuth.getApplicationDefaultAsync (/home/kaylakos/nodevenv/rootdir/kayla/12/lib/node_modules/google-auth-library/build/src/auth/googleauth.js:157:19)
App 21701 output:     at processTicksAndRejections (internal/process/task_queues.js:97:5)
App 21701 output:     at async GoogleAuth.getClient (/home/kaylakos/nodevenv/rootdir/kayla/12/lib/node_modules/google-auth-library/build/src/auth/googleauth.js:490:17)
App 21701 output:     at async GoogleAuth.request (/home/kaylakos/nodevenv/rootdir/kayla/12/lib/node_modules/google-auth-library/build/src/auth/googleauth.js:543:24)
App 21701 output:     at async Upload.makeRequest (/home/kaylakos/nodevenv/rootdir/kayla/12/lib/node_modules/gcs-resumable-upload/build/src/index.js:320:21)
App 21701 output:     at async Upload.createURIAsync (/home/kaylakos/nodevenv/rootdir/kayla/12/lib/node_modules/gcs-resumable-upload/build/src/index.js:145:22)