Heroku RACK_ENV 表示“开发”薄,但“分期”关于独角兽
我遇到了这种行为,想知道是否有其他人看到过。我有一个解决方法,所以这不是一个阻碍。
我使用 Cedar 堆栈在 Heroku 上创建了一个新应用程序。在演示多个环境时,我添加了以下配置变量:
heroku config:add RACK_ENV=staging --app appname
我直观地验证了环境变量是否已设置,然后将以下路由放入我的简单 Sinatra 示例中:
get '/?' do
ENV['RACK_ENV']
end
当我在笔记本电脑上进行本地测试时,我收到了预期的开发
。
当我推送到 Heroku 并在 herokuapp.com 上点击相同的路线时,我得到了 development
而不是 staging
。
我通过 Procfile 将 Web 服务器从 Thin 切换到 Unicorn,并将更改推送回 Heroku。
现在,当我到达路线时,我得到了预期的分段
。
还有其他人看过这个吗?我在另一个运行 Thin 的项目中的解决方法是从 New Relic 应用程序名称中删除环境。 (我没有切换到 Unicorn,因为我需要 New Relic 才能工作,并且目前 Cedar 和 New Relic 以及 Unicorn 一起工作)。
I came across this behavior and was wondering if anyone else had seen it. I have a workaround so it's not a show-stopper.
I created a new app on Heroku with a Cedar stack. When demonstrating multiple environments I added the following config var:
heroku config:add RACK_ENV=staging --app appname
I visually verified that the environment var was set, then put the following route in my simple Sinatra example:
get '/?' do
ENV['RACK_ENV']
end
When I tested locally on my laptop, I received the expected development
.
When I pushed to Heroku and hit the same route on herokuapp.com I got development
instead of staging
.
I switched the web server from Thin to Unicorn through the Procfile and pushed the changes back up to Heroku.
Now when I hit the route, I get the expected staging
.
Has anyone else seen this? My workaround on another project where I was running Thin was to key the environment off of the New Relic app name. (I didn't switch to Unicorn because I need New Relic to work and currently Cedar and New Relic and Unicorn work together).
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我使用heroku的示例sinatra应用程序在cedar堆栈上使用sinatra和thin时遇到了同样的问题。 RACK_ENV 拒绝设置为除开发之外的任何内容。 (Heroku 似乎认为 RACK_ENV 已设置,因为运行“heroku config”会显示您设置的环境,但在应用程序中它始终是开发环境)。
竹栈上的同一个应用程序没有任何问题。
编辑:我向heroku提交了一张关于此问题的票证,并得到了非常快速的回复,为我修复了错误:
引用:
如果您使用 Thin,我们的默认 Procfile 中似乎存在一个小错误。您可以创建一个包含以下内容的 Procfile 吗?
web:bundle exec Thin start -R config.ru -e $RACK_ENV -p $PORT
I had the same problem with sinatra and thin on the cedar stack using heroku's example sinatra app. The RACK_ENV refuses to be set to anything but development. (Heroku seems to think that it's RACK_ENV is set, since running 'heroku config' displays the environment you set, however in the app it's always development).
The same app on the bamboo stack had no problems.
EDIT: I submitted a ticket to heroku about this and got a really quick response which fixed the bug for me:
QUOTE:
It looks like there's a small bug in our default Procfile if you're using thin. Can you create a Procfile with the following in it?
web: bundle exec thin start -R config.ru -e $RACK_ENV -p $PORT
您还可以使用 Heroku gem 将 RACK_ENV 和 RAILS_ENV 设置为暂存...然后它会按预期工作。我认为这可能是 Heroku 的问题。
You can also set both your RACK_ENV and RAILS_ENV to staging using the Heroku gem ... then it works as expected. I think it may be a problem with Heroku.