cap recipe for media temple grid server

# 
#  After running cap deploy:cold, You'll need to remove all files from the 
#  domains/yourdomain.com/html directory and turn the html directory into a 
#  symlink that links to ./current which is also a symlink setup by capistrano.
#

# install the mt-capistrano gem, not sure if it is really needed in most situations
require 'mt-capistrano' 

# Configure these
set :site,         "12345" # this is your site number, for example if your access domain is s12345.gridserver.com
set :application,  "example.com" # typically the same as the domain
set :webpath,      "example.com" # the domain you are deploying the site as

# Shouldn't have to change anything below
set :domain,       "s#{site}.gridserver.com"
set :user,         "serveradmin@#{webpath}"
set :password,     "xxxxxx" # or you can add your public ssh key, just forward the agent in this recipe

# Other options
default_run_options[:pty] = true
default_run_options[:shell] = false
set :use_sudo, false # MediaTemple doesn't allow sudo command

# Repo stuff
set :scm, :git
set :repository, "." # assumes you are running cap deploy while your current working directory is the repo
set :deploy_via, :copy
set :copy_cache, true
set :copy_exclude, [".git"]	# no need to include the git config directory
set :branch, "master" # you can change this if you would like to use another branch

# Path stuff, make sure to symlink html to ./current
set :deploy_to, "/home/#{site}/users/.home/domains/#{application}"
set :current_deploy_dir, "#{deploy_to}/current"
# make sure you have added a tmp directory inside domains/example.com with correct permissions (i.e 755)
set :copy_remote_dir, "#{deploy_to}/tmp" 
set :keep_releases, 2 # keep this low for larger sites, can be up to 5 if you are really nervous

# Roles
role :web, domain
role :app, domain
role :db,  domain, :primary => true

# we need a relative path for the current symlink, without this 
# current is set to link to the release starting from the /home directory 
# which has a directory that is not owned by the serveradmin and apache 
# won't have access
def relative_path(from_str, to_str) 
  require 'pathname' 
  Pathname.new(to_str).relative_path_from(Pathname.new(from_str)).to_s 
end 

# overwrite the symlink method to use the relative path method above
namespace :deploy do 
  desc "Relative symlinks for current, so we don't use full path" 
  task :symlink, :except => { :no_release => true } do 
    if releases[-2] # not the first release 
      previous_release_relative = relative_path(deploy_to, previous_release) 
      on_rollback { run "rm -f #{current_path}; ln -s #{previous_release_relative} #{current_path}; true" } 
    end 
    latest_release_relative = relative_path(deploy_to, latest_release) 
    run "rm -f #{current_path} && ln -s #{latest_release_relative} #{current_path}" 
  end
end