Deploy Rails to Heroku

Follow these 12 steps for deploying your app on heroku.

1. Create a new Heroku account.
2. In the terminal, log in using the email address and password of Heroku account:

   $ heroku login
   

3. In Gemfile, add the pg gem to your Rails project. Change:

4. gem sqlite
   

   to

5. gem 'sqlite3', group: :development
   gem 'pg', '0.18.1', group: :production
   

6. In Gemfile, add the rails_12factor gem::

   gem 'rails_12factor', group: :production
   

7. In gem file write  *****  ruby ‘>=2.2’ ******. so that heroku use correct version of ruby.
8. In the terminal, install the gems using:

   $ bundle install
   

9. Check config/database.yml is using the postgresql adapter. Change:

   production:
     <<: *default
     database: db/production.sqlite3
   

   to

   production:
     <<: *default
     adapter: postgresql
     database: db/production.sqlite3
   

10. Commit your changes to git:

    $ git add .
    $ git commit -m "My first Commit"
    

11. In the terminal, create an app on Heroku:

    $ heroku create
    

12. Push your code to Heroku:

    $ git push heroku master
    

13. If you are using the database in your application, migrate the database by running:

    $ heroku run rake db:migrate
    

14. If you need to seed your database with data, run:

    $ heroku run rake db:seed
    

15. Get the URL of your app and visit it in the browser:

    $ heroku apps:info
    

    This will open your app on browser.