Make sure we are in the directory that contains our Rails app, then create an app on Heroku.
This command should only be used on an initialized git repository. The heroku create command automatically adds a git remote named “heroku” pointing at this URL.
The app name argument (“example”) is optional. If no app name is specified, a random name will be generated. Since Heroku app names are in a global namespace, We can expect that common names, like “blog” or “wiki”, will already be taken. It’s often easier to start with a default name and rename the app later.
Deploy our code:
if we are using the database in our application we need to manually migrate the database by running:
Any commands after heroku run will be executed on a Heroku dyno. we can obtain an interactive shell session by running:
Assume we have one dyno running the web process type:
The heroku ps command lists the running dynos of our application:
We can now visit the app in our browser with heroku open.
Heroku gives we a default web URL in the herokuapp.com domain. When we are ready to scale up for production, we can add our own custom domain.
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