Quick overview of the installation process for RVM and rbenv, including how we use puppet-rbenv to manage Ruby at New Relic.

1. New Relic
• Development on Mac laptops
• CI, Staging and Production on Linux
• REE-1.8.7-2010.02 and Ruby 1.9.3-p125

2. Development
• Developer laptops
• MacOS 10.7
• osx-gcc-installer
• Many apps all running as the developer

3. RVM
$ curl -L https://get.rvm.io | bash -s stable
$ source /Users/newrelic/.rvm/scripts/rvm
$ rvm install ree-1.8.7-2010.02
There has been an error while trying to run the ree installer.
Halting the installation.
Oh that’s right, the old REE doesn’t build with the new LLVM compiler! Manually
specify the compiler and try again.
$ CC=/usr/bin/gcc-4.2 rvm reinstall ree-1.8.7-2010.02

4. RVM
$ ruby -v
ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-darwin11.3.0], MBARI
0x6770, Ruby Enterprise Edition 2010.02
$ which ruby
/Users/newrelic/.rvm/rubies/ree-1.8.7-2010.02/bin/ruby
$ ruby -r rbconfig -e 'puts Config::CONFIG["configure_args"]'
'--prefix=/Users/newrelic/.rvm/rubies/ree-1.8.7-2010.02' '--
enable-mbari-api' 'CFLAGS=-g -O2 ' 'CC=/usr/bin/gcc-4.2'

5. rbenv + ruby-build
(with Homebrew)
$ /usr/bin/ruby -e "$(/usr/bin/curl -fsSL https://raw.github.com/
mxcl/homebrew/master/Library/Contributions/install_homebrew.rb)"
$ brew update
$ brew install rbenv
$ echo 'if which rbenv > /dev/null; then eval "$(rbenv init -)";
fi' >> ~/.profile
$ brew install ruby-build
$ rbenv install ree-1.8.7-2010.02

6. rbenv + ruby-build
(with Homebrew)
$ rbenv shell ree-1.8.7-2010.02
$ ruby -v
ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-darwin11.3.0], MBARI
0x6770, Ruby Enterprise Edition 2010.02
$ which ruby
/Users/newrelic/.rbenv/shims/ruby
$ ruby -r rbconfig -e 'puts Config::CONFIG["configure_args"]'
'--prefix=/Users/newrelic/.rbenv/versions/ree-1.8.7-2010.02' '--
enable-mbari-api' 'CFLAGS=-g -O2 ' 'CC=/usr/bin/gcc-4.2'
'LDFLAGS=-L'''/Users/newrelic/.rbenv/versions/ree-1.8.7-2010.02/
lib''' ' 'CPPFLAGS=-I'''/Users/newrelic/.rbenv/versions/
ree-1.8.7-2010.02/include''' '

7. Production
• Linux (CentOS)
• One user per application
• Puppet
• Different Rubies for system and application
• Try it out in Vagrant first!

8. Trying it with Vagrant
• Install VirtualBox and Vagrant
(vagrantup.com)
• Example config https://gist.github.com/
3044552
• Code, run, repeat!

9. rbenv + ruby-build
(with Puppet)
Using https://github.com/alup/puppet-rbenv
class { "rbenv":
user => "newrelic",
compile => true,
version => "ree-1.8.7-2010.02"
}

10. rbenv + ruby-build
(with Puppet)
$ ruby -v
ruby 1.8.7 (2010-04-19 patchlevel 253) [x86_64-linux], MBARI
0x6770, Ruby Enterprise Edition 2010.02
$ which ruby
~/.rbenv/shims/ruby
$ ruby -r rbconfig -e 'puts Config::CONFIG["configure_args"]'
'--prefix=/home/vagrant/.rbenv/versions/ree-1.8.7-2010.02' '--
enable-mbari-api' 'CFLAGS=-g -O2 ' 'CC=/usr/bin/gcc' 'LDFLAGS=-L'
''/home/vagrant/.rbenv/versions/ree-1.8.7-2010.02/lib''' '
'CPPFLAGS=-I'''/home/vagrant/.rbenv/versions/ree-1.8.7-2010.02/
include''' '