Category Archives: Ruby

Install Ruby for Rails on Amazon Linux

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A quick HOWTO on how to install Ruby for Rails on Amazon Linux

Check your Ruby version (bundled in Amazon Linux)


ruby -v
ruby 2.0.0p481 (2014-05-08 revision 45883) [x86_64-linux]

Check your sqlite3 version (bundled with Amazon Linux)


sqlite3 --version
3.7.17 2013-05-20 00:56:22 118a3b35693b134d56ebd780123b7fd6f1497668

Check Rubygems version (bundled with Amazon Linux)


gem -v
2.0.14

Install Rails (this sticks on the command line for a while, be patient. The extra parameters exclude the documentation, which if installed, can melt the CPU on smaller instances whilst compiling)


sudo gem install rails --no-ri --no-rdoc

Check Rails installed


rails --version
Rails 4.1.6

Install gcc (always handy to have)


sudo yum install -y gcc

Install ruby and sqlite development packages


sudo yum install -y ruby-devel sqlite-devel

Install node.js (Rails wants a JS interpreter)

 sudo bash
curl -sL https://rpm.nodesource.com/setup | bash -
exit
sudo yum install -y nodejs

Install the sqlite3 and io-console gems


gem install sqlite3 io-console

Make a blank app


mkdir myapp
cd myapp
rails new .

Start it (in the background)


bin/rails s &

Hit it


wget -qO- http://localhost:3000

Debug (Rails console)


bin/rails c