Deploy the demo application to Heroku

Prerequisites:

1.Rails Application
2.Git
3.Heroku Account
4.Heroku gem

1.Rails application:

http://gowithfoss.wordpress.com/2011/02/02/create-rails-application/

2. Install git:

step1:

$sudo apt-get install git-core

step3:Now enter into your project directory

$cd sample

step4:Now Initialize empty Git repository to add your application

$git init

Git will reply

Initialised empty Git repository in .git/

and also create .git/ folder in your project

step5:Add your project files in to the empty Git repository

$git add .                        # (.specify current directory)

step6:Now you can commit your project

$git commit -m “Initial repository”               #”commited comment    “

Now git installed and add initial repository successfully

github:

To add your application from local git repository to github repo

create an account in github.com

to add application to github need to create remote between local repo and github repo

$ sudo apt-get install ssh

if already ssh installed means you generate a new key using following commands

$ ssh-keygen -t rsa -C  “k.sanmugam2@gmail.com” # your mail id

it reply

to add ur ssh key to github site

$cd ~/.ssh

$gedit  id_rsa.pub

to copy the whole content

and open your github.com account and go account settings=>ssh publc keys=>add another public key=> to paste your key in the key field
and create a repository in dashboard

configure  git with the ur system and git account at  first time only

$ cd project_dir # go to ur project directory

$ git config –global user.name “sanmugam”

$ git config –global user.email k.sanmugam2@gmail.com

above two steps are first time paring only

now create new repository in GitHub

after created it shows like

now

$ git remote add origin git@github.com:sanmugamk/sample.git

$ git push origin master

successfully upload local git repo to github repo..

3.Create a Heroku account:

here http://heroku.com/

4.Now we create heroku application

step1:install heroku through gem

$sudo gem install heroku

step2:It upload SSH public key

$heroku keys:add

it reply

Uploading ssh public key /home/sanmugam/.ssh/id_rsa.pub

step3:Now create our application with heroku

$heroku create sample     #Enter name of your application

step4: Deploy to Heroku

to deploy heroku by git push

$git push heroku master

step5:Migrate heroku database

$heroku rake db:migrate

step6:start your project in heroku

$heroku open

It deployed successfully

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