[Ruby on Rails tutorial] setting up github and heroku, deploying a sample application

Rushdie · Jan 3, 2012

setting up github and heroku and creating a sample app. In the soon to come tutorial i will show how to create a very cool website with twitter's bootstrap

im using linux

you need ruby and rails set up you can see my former thread here: http://www.blackhatworld.com/blackhat-seo/general-programming-chat/389741-setting-up-ruby-rails-environment-ubuntu-mac.html

let's set up a directory in our home directory

Code:

mkdir rails
cd rails
rails new app

app can by any name that you give to your app. also it doesnt really matter. rails created your application's directory structure with generic MVC stuff.

Code:

cd app

you are in your application's directory

run this to install dependencies:

Code:

sudo apt-get install g++
gem install execjs
gem install therubyracer

let's take a look at the Gemfile. your apps dependencies are there. for now we will use sqlite3. add this:

Code:

gem 'execjs'
gem 'therubyracer'

this fixes javascript runtime errors in rails 3.1.3 for me on ubuntu

Code:

bundle install

fetches gems for your app

if you have any errors, install the needed stuff like

Code:

gem install sqlite3

you might need to do

Code:

sudo apt-get install libsqlite3-dev

remember im using the newest versions here some things might not be compatible, you will figure it out later.

when you see this:

Code:

Your bundle is complete!

we're good to go

run

Code:

rails server

visit the ip echoed(for me http://0.0.0.0:3000/), a sample app is working

you can find some useful links there:

Code:

Rails Guides
Rails API
Ruby core
Ruby standard library

you can code anything using this info

if you encounter any errors along the way it's probably dependencies stuff; google it and you will be fine.

dont try to install binary ruby/rails packages like apt-get install ruby-1.9.2 its much much simpler but it will be a misery later on. not to mention if you will want to use various ruby versions or stuff like jruby for some projects. RVM for the win.

create free accounts at http://heroku.com and http://github.com. if you wish to have private github repositories, you got to pay a small monthly fee.

it just an empty app we will push it to github and heroku and afterwards i will show you how to create a cool website

edit .gitignore in your app's directory

change it to this:

Code:

*.rbc
*.sassc
.sass-cache
capybara-*.html
.rspec
/.bundle
/vendor/bundle
/log/*
/tmp/*
/db/*.sqlite3
/public/system/*
/coverage/
/spec/tmp/*
**.orig
rerun.txt
pickle-email-*.html
.bundle
db/*.sqlite3*
log/*.log
*.log
/tmp/
doc/
*.swp
*~
.project
.DS_Store

yeah gitignore like a boss, we dont want to have BS in our version control

do this for every app until you know better

go to github, create a new repository
https://github.com/repositories/new

Code:

git config --global user.name "[I]githubnickname[/I]"
git config --global user.email [I][email protected][/I]

Code:

ssh-keygen -t rsa -C [I]"[email protected][/I]"

https://github.com/account/ssh
add another public key and post the key you just generated there
the key is the whole content of the file located in /home/$user/.ssh/id_rsa.pub

test it and input yes:

Code:

ssh -T [email protected]

go here:
https://github.com/account/admin

copy the api key and do:

Code:

git config --global github.user uSeRnAmE
git config --global github.token 4s4s4s4sAPICODE2ejh3g123jhg21jh3g12

got to your app's directory

Code:

git init
git add .

we got a local repo

this should list our files:

Code:

git status

commit version locally:

Code:

git commit -m "ver 1"

ok back to the github screen after creation of the new repository. copy something like this and paste in the terminal:

Code:

git remote add origin [email protected]:uSeRnAmE/nAmE.git

push the files to github:

Code:

git push -u origin master

damn we did it.

something like this should happen:

Code:

"Counting objects: 63, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (48/48), done.
[...]"

go to your github and find the app. the files are there

now we will push this repository to heroku and put the app online.

Code:

sudo apt-get install libreadline-dev

Code:

gem install heroku
cd ~/.rvm/src/ruby-YOUR-VER/ext/readline
ruby extconf.rb
make
make install
heroku keys:add
heroku create

Code:

git push heroku master

our sample app is online.
my sample app is here:
http://morning-light-3493.heroku.com

cheers

[Ruby on Rails tutorial] setting up github and heroku, deploying a sample application

Rushdie

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