Simple command for ssh'ing into rails hosts. Thanks to @trobrock for the ruby script.

.zshrc

# Usage:
#   rails_ssh release cron
#   => ssh release@ec2-xx-xx-xx-xx.compute-1.amazonaws.com
rails_ssh()
{
  username=$1
  hostname="$(ruby $HOME/Scripts/parse_cap_config.rb $2)"
  ssh $username@$hostname
}

# Example Usage:
#   rssh cron
#   rssh web1
alias rssh='rails_ssh release'

parse_cap_config.rb

#!/usr/bin/env ruby

wanting = ARGV[0]
role    = wanting.scan(/[a-z]+/).first.to_sym
number  = wanting.scan(/\d+/).first.to_i

ROLES = {}
def role(role, *hosts)
  hosts.pop if hosts.last.is_a?(Hash)
  ROLES[role] = hosts
end

def method_missing(meth, *args, &block)
end

load "config/deploy/production.rb"

puts ROLES[role][number-1]