Capistrano Apache deployment recipe

deploy.rb

#for RHEL distributions
namespace :httpd do
  namespace :deploy do
    set :local_src_path, "#{Dir.pwd}/config/httpd/conf.d"
    set :remote_src_path, "#{shared_path}/httpd/conf.d"
    set :remote_dest_path, '/etc/httpd/conf.d'

    task :default, :roles => :web do
      transaction do
        on_rollback do
          run "for file in `find #{remote_dest_path} -type l`; do sudo rm $file; done;", :pty => true
          run "rm -rf #{remote_src_path}"
          run "cp -rf #{remote_src_path}.prev #{remote_src_path}"
          sudo "ln -s #{remote_src_path}/*.{conf,passwd} #{remote_dest_path}", :pty => true
        end
        update
        reload
      end
    end

    task :setup, :roles => :web do
      run "mkdir -p #{shared_path}/httpd/conf.d #{shared_path}/httpd/conf.d.prev"
    end

    task :update, :roles => :web do
      #remove old symlinks
      run "for file in `find #{remote_dest_path} -type l`; do sudo rm $file; done;", :pty => true
      #backup old files
      run "rm -rf #{remote_src_path}.prev"
      run "cp -rf #{remote_src_path} #{remote_src_path}.prev"
      #upload new files
      Dir.glob("#{local_src_path}/{*,environments/#{stage}}.{conf,passwd}").each do |file|
        upload(file, remote_src_path, :via => :scp)
      end
      #create new symlinks
      sudo "ln -s #{remote_src_path}/*.{conf,passwd} #{remote_dest_path}", :pty => true
    end

    task :reload, :roles => :web do
      sudo '/etc/init.d/httpd configtest', :pty => true
      sudo '/etc/init.d/httpd reload', :pty => true
    end
  end
end