This content originally appeared on Jonnie Hallman (@destroytoday) and was authored by Jonnie Hallman (@destroytoday)
While looking for areas to improve on Cushion’s infra side, I realized a shortcoming with Heroku’s admin panel that I had begrudgingly put up with for the past six years.
In the pipeline section, each environment has a handy “Open app” button, but this simply opens a tab with the herokuapp.com URL, so it’s not exactly useful for folks who have a custom domain for their app. Instead of blindly accepting this reality and continuing to lie to myself that there’s nothing I can do, I realized I could simply add a redirect:
get '/', host_name: /^[\w-]+\.herokuapp\.com/ do
redirect 'https://mycoolapp.biz'
end
This works if you like to hard-code things, but Cushion also has a staging environment at a different, top secret URL, so I can’t (and shouldn’t) hard-code the redirect URL and call it a day. Instead, I can use an environment variable to change the app URL between environments:
get '/', host_name: /^[\w-]+\.herokuapp\.com/ do
redirect ENV['APP_URL']
end
Now, when I click the “Open app” button on either the staging app or the production app in Heroku’s pipeline panel, I end up where I expected I’d be. Such an obvious solution, but I simply never took the time to make the change. In an ideal world, Heroku would have a setting to route that button to the custom domain you already have listed in your settings, but we can’t have everything.
This content originally appeared on Jonnie Hallman (@destroytoday) and was authored by Jonnie Hallman (@destroytoday)
Jonnie Hallman (@destroytoday) | Sciencx (2020-06-10T20:42:00+00:00) Redirecting the Heroku “Open app” button to a custom domain. Retrieved from https://www.scien.cx/2020/06/10/redirecting-the-heroku-open-app-button-to-a-custom-domain/
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