How to link a folder with an existing Heroku app
I have an existing Rails app on GitHub and deployed on Heroku. I'm trying to set up a new development machine and have cloned the project from my GitHub repository. However, I'm confused as to how to link this folder up to Heroku. Originally, I used the heroku create command, but obviously I don't want to do that this time since it will create another Heroku instance.
Heroku links your projects based on the heroku git remote (and a few other options, see the update below). To add your Heroku remote as a remote in your current repository, use the following command:
git remote add heroku git@heroku.com:project.git
where project is the name of your Heroku project (the same as the project.heroku.com subdomain). Once you've done so, you can use the heroku xxxx commands (assuming you have the Heroku Toolbelt installed), and can push to Heroku as usual via git push heroku master . As a shortcut, if you're using the command line tool, you can type:
heroku git:remote -a project
where, again, project is the name of your Heroku project (thanks, Colonel Panic). You can name the Git remote anything you want by passing -r remote_name .
[Update]
As mentioned by Ben in the comments, the remote doesn't need to be named heroku for the gem commands to work. I checked the source, and it appears it works like this:
--app option (eg heroku info --app myapp ), it will use that app. --remote option (eg heroku info --remote production ), it will use the app associated with that Git remote. heroku.remote set in your Git config file, it will use the app associated with that remote (for example, to set the default remote to "production" use git config heroku.remote production in your repository, and Heroku will run git config heroku.remote to read the value of this setting) .git/config file, and the gem only finds one remote in your Git remotes that has "heroku.com" in the URL, it will use that remote. --app to your command. The Heroku CLI has an easy shortcut for this. For an app named 'falling-wind-1624':
$ heroku git:remote -a falling-wind-1624
Git remote heroku added.
See https://devcenter.heroku.com/articles/git#creating-a-heroku-remote
Don't forget, if you are also on a machine where you haven't set up heroku before
heroku keys:add
Or you won't be able to push or pull to the repo.
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