Deploying rails app to heroku from scratch

Sign Up for Heroku account – At heroku.com

If you already have an account, sign in.

Create an new app

Give your app a name. Make sure the app name is available on Heroku.

Create a new Git repository

Initialize a git repository in a new or existing directory

srinidhigs@code$ cd Blog/
srinidhigs@Blog$ git init
Initialized empty Git repository in /Users/srinidhigs/Desktop/Srinidhi/code/Blog/.git/
srinidhigs@Blog (master)$

Heroku Login from Terminal

srinidhigs@Blog (master)$ heroku login
Enter your Heroku credentials:
Email: srini.satti@gmail.com
Password: *************
Logged in as srini.satti@gmail.com
srinidhigs@Blog (master)$

Add heroku remote to your app

srinidhigs@Blog (demo-branch)$ heroku git:remote -a techenthu-demo
set git remote heroku to https://git.heroku.com/techenthu-demo.git
srinidhigs@Blog (demo-branch)$

Commit your code to the repository and deploy it to Heroku using Git.

$ git add .
$ git commit -m "your-commit-message"

Push your code to Git repository

$ git push origin demo-branch

! important

Heroku does not support sqlite3 which is rails default database.
So Please remove sqlite3 from gemfile and use Postgres or mysql.
Preferably Postgres and make necessary changes in database.yml file

gem 'sqlite3'
gem 'pg'

Deploy your application

this is to deploy master branch

 $ git push heroku master

or
this is to deploy specific branch

 $ git push heroku demo-branch:master

Existing Git repository

For existing repositories, simply add the heroku remote

$ heroku git:remote -a techenthu-demo

Open app in heroku

$ heroku open