Capifony Task to Set ACLs on Symfony2 app/cache and app/logs directories as per http://symfony.com/doc/current/book/installation.html

update_acl.rb

# Change ACL on the app/logs and app/cache directories
after 'deploy', 'deploy:update_acl'

# This is a custom task to set the ACL on the app/logs and app/cache directories
namespace :deploy do

  task :update_acl, :roles => :app do
    shared_dirs = [
      app_path + "/logs",
      app_path + "/cache"
    ]
    
    # add group write permissions
    #run "chmod -R g+w #{shared_dirs.join(' ')}"
    # Allow directories to be writable by webserver and this user
    run "cd #{latest_release} && sudo setfacl -R -m u:www-data:rwx -m u:#{user}:rwx #{shared_dirs.join(' ')}"
    run "cd #{latest_release} && sudo setfacl -dR -m u:www-data:rwx -m u:#{user}:rwx #{shared_dirs.join(' ')}"
  end
end

ops but this need sudo!! grrrr