node.js - Git 部署无法启动应用程序不确定原因

Question

我正在部署已在与我的产品环境相同的临时环境中进行测试的代码。代码在 staging 中正确部署，但此后无法部署在 prod 中。我得到以下堆栈跟踪:

2017-01-10T03:57:42.481294+00:00 heroku[web.3]: Restarting
2017-01-10T03:57:42.482078+00:00 heroku[web.3]: State changed from up to starting
2017-01-10T03:57:42.558898+00:00 heroku[web.1]: Restarting
2017-01-10T03:57:42.559519+00:00 heroku[web.1]: State changed from up to starting
2017-01-10T03:57:42.574467+00:00 heroku[web.2]: Restarting
2017-01-10T03:57:42.574467+00:00 heroku[web.2]: State changed from up to starting
2017-01-10T03:57:43.096202+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2017-01-10T03:57:43.224722+00:00 heroku[web.1]: Process exited with status 0
2017-01-10T03:57:43.182174+00:00 heroku[web.3]: Stopping all processes with SIGTERM
2017-01-10T03:57:43.253740+00:00 heroku[web.2]: Stopping all processes with SIGTERM
2017-01-10T03:57:43.368835+00:00 heroku[web.2]: Process exited with status 0
2017-01-10T03:57:43.309209+00:00 heroku[web.3]: Process exited with status 0
2017-01-10T03:57:49.095054+00:00 heroku[web.1]: Starting process with command `node app.js`
2017-01-10T03:57:49.250082+00:00 heroku[web.2]: Starting process with command `node app.js`
2017-01-10T03:57:51.165665+00:00 app[web.2]: Required New Relic
2017-01-10T03:57:51.508858+00:00 app[web.1]: Required New Relic
2017-01-10T03:57:52.218712+00:00 app[web.2]: fs.js:844
2017-01-10T03:57:52.218722+00:00 app[web.2]:   return binding.stat(pathModule._makeLong(path));
2017-01-10T03:57:52.218722+00:00 app[web.2]:                  ^
2017-01-10T03:57:52.218723+00:00 app[web.2]: 
2017-01-10T03:57:52.218726+00:00 app[web.2]: Error: ENOENT: no such file or directory, stat '/app/node_modules/.bin/_mocha'
2017-01-10T03:57:52.218727+00:00 app[web.2]:     at Error (native)
2017-01-10T03:57:52.218727+00:00 app[web.2]:     at Object.fs.statSync (fs.js:844:18)
2017-01-10T03:57:52.218728+00:00 app[web.2]:     at /app/node_modules/include-all/index.js:48:12
2017-01-10T03:57:52.218728+00:00 app[web.2]:     at Array.forEach (native)
2017-01-10T03:57:52.218729+00:00 app[web.2]:     at requireAll (/app/node_modules/include-all/index.js:44:9)
2017-01-10T03:57:52.218729+00:00 app[web.2]:     at /app/node_modules/include-all/index.js:54:23
2017-01-10T03:57:52.218730+00:00 app[web.2]:     at Array.forEach (native)
2017-01-10T03:57:52.218730+00:00 app[web.2]:     at requireAll (/app/node_modules/include-all/index.js:44:9)
2017-01-10T03:57:52.218731+00:00 app[web.2]:     at buildDictionary (/app/node_modules/sails-build-dictionary/index.js:68:14)
2017-01-10T03:57:52.218732+00:00 app[web.2]:     at Array.async.auto.nodeModulesFolder (/app/node_modules/sails/lib/hooks/moduleloader/index.js:379:27)
2017-01-10T03:57:52.218731+00:00 app[web.2]:     at Function.module.exports.optional (/app/node_modules/sails-build-dictionary/index.js:160:9)
2017-01-10T03:57:52.218732+00:00 app[web.2]:     at /app/node_modules/sails/node_modules/async/lib/async.js:484:38
2017-01-10T03:57:52.218733+00:00 app[web.2]:     at _each (/app/node_modules/sails/node_modules/async/lib/async.js:46:13)
2017-01-10T03:57:52.218734+00:00 app[web.2]:     at Hook.bound [as loadUserHooks] (/app/node_modules/sails/node_modules/lodash/dist/lodash.js:729:21)
2017-01-10T03:57:52.218733+00:00 app[web.2]:     at Object.async.auto (/app/node_modules/sails/node_modules/async/lib/async.js:455:9)
2017-01-10T03:57:52.218734+00:00 app[web.2]:     at Hook.loadUserHooks (/app/node_modules/sails/lib/hooks/moduleloader/index.js:363:13)
2017-01-10T03:57:52.309838+00:00 heroku[web.2]: State changed from starting to crashed

它提示的包没有安装在正常工作的临时服务器上，所以我不确定这就是错误。 (我也尝试将它安装在我的产品服务器上)我很好奇是否有人知道我应该做什么。

Answer 1

您的日志消息表明您的 Heroku dyno 正在尝试运行命令 ./node_modules/.bin/_mocha。该文件不存在，因此您的 Heroku 进程无法启动。

Mocha 是一个 JS 测试框架，所以我不确定为什么它会在生产中运行。

我会检查一些事情:

1. 您在程序中的什么位置运行摩卡？是否有必要在生产中运行它？
2. 在您的 Procfile 中，您是否不小心告诉 Heroku 运行 Mocha？
3. 如果您确实需要运行 mocha - 您是否已将其安装在 package.json 文件中？
4. 您正在运行的 mocha 命令对我来说看起来不正确。通常，如果您想从 NPM 安装运行 mocha，可以使用命令 ./node_modules/mocha/bin/mocha 来完成。如果您执行到此步骤但仍然无法正常工作，请尝试将命令更改为我刚刚列出的命令。

这应该涵盖所有可能的边缘情况，以帮助您让这个东西正常工作!

祝你好运!