about-vlad.md

Vlad the Deployer

http://rubyhitsquad.com/Vlad_the_Deployer.html

Inspired by Capistrano, just Rake.

• vlad, vlad-git
• rake-remote_task

deploy.rb

require 'vlad/passenger'

set :application, 'myapp'
set :user, 'deploy'
set :domain, "#{user}@10.0.0.10"
set :deploy_to, '/home/deploy/production/myapp'
set :repository, 'git@github.com:yardstick/myapp.git'

set :web_command, "/etc/init.d/httpd" #redhat doesn't use apachectl

namespace :vlad do
  desc "setup apache configuration (assuming I had permission)"
  remote_task :symlink_apache do
    # sudo "" - must have tty
    run "ln -fs #{current_path}/config/000-myapp.conf /home/deploy/apache/sites-available/000-myapp.conf"
    run "ln -fs /home/deploy/apache/sites-available/000-myapp.conf /home/deploy/apache/sites-enabled/000-myapp.conf"
  end
  
  desc "copy system files not in git to shared folder"
  task :deploy_system do
    sh "scp -r public/system/* #{domain}:#{shared_path}/system/"
  end
end

desc "Full deployment cycle"
task "vlad:deploy" => %w[vlad:update vlad:start_app vlad:cleanup]

Rakefile

require 'rake'

begin
  require 'vlad'
  Vlad.load :scm => :git, :app => nil # use git, don't use mongrel
rescue LoadError
  # do nothing (vlad/vlad-git not requird on server, 
  # unfortunately this hides the error if vlad-git isn't installed locally)
end