错误502 NGINX + rails + dokku上的错误网关 [英] Error 502 Bad Gateway on NGINX + rails + dokku

问题描述

在将我的Ruby on Rails应用程序部署到数字海洋上的Dokku液滴后，我收到了错误502。该应用程序可以在Heroku和本地构建和部署。

I am receiving an Error 502 after deploying my Ruby on Rails app to a Dokku droplet on Digital Ocean. The app builds and deploys to Heroku just fine, as well as locally.

检查NGINX日志，我看到以下内容：

Checking the NGINX logs, I see the following:

2014/01/10 01:56:32 [error] 2376#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: <my.ip.add.ress>, server: app.campbellscoop.com, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:49153/", host: "app.campbellscoop.com"

可能会导致此错误？

What could be causing this error?

推荐答案

在数字海洋上关闭我的Dokku液滴后，我遇到了类似的问题。
轻松修复是将ssh放入液滴并运行：

I had a similar issue after powering off my Dokku droplet on Digital Ocean. Easy fix was to ssh into the droplet and run:

dokku ps:rebuildall

访问浏览器中的应用程序，一切都很好！

Visit the app in the browser and all was well!

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