Using deploy_revision resource to deploy nodejs from git

deploy.rb

path = node['myapp']['path']
install_options = []
install_options << "--registry=#{node['myapp']['npm_registry']}" if (node['myapp']['npm_registry'])

  
# option is to prevent failure as pkgs are unauthenticated
package 'git' do
  action :install
  options "--allow-unauthenticated"
end

# g++, make and python are needed by node-gyp to build some packages
package 'g++' do
  action :install
end

package 'make' do
  action :install
end

group node['myapp']['user']

user node['myapp']['user'] do
  group node['myapp']['user']
  shell "/bin/bash"
  home home
  manage_home true
  action [:create, :lock]
end

# Deploy the application from git, if there is a new commit
deploy_revision "#{path}" do
  repo node['myapp']['repo_url']
  revision "HEAD"
  user node['myapp']['user']
  action :deploy

  before_migrate do
    nodejs_npm "myapp" do
      path "#{release_path}"
      package ""
      user node['myapp']['user']
      json ""
    end
  end

  # Next lines prevent symlink problem
  # http://stackoverflow.com/questions/12568767/chef-deployment-with-irrelevant-default-symlinks
  symlink_before_migrate.clear
  create_dirs_before_symlink.clear
  purge_before_symlink.clear
  symlinks.clear
end


# setup the service - template is the one from application_nodejs cookbook
template "myapp.upstart.conf" do
  path "/etc/init/myapp.conf"
  source 'nodejs.upstart.conf.erb'
  mode '0644'
  variables(
  :user => node['myapp']['user'],
  :group => node['myapp']['user'],
  :node_dir => '/usr/local',
  :app_dir => "#{path}/current",
  :entry => "server.js"
  )
end


# Start the service
service node['myapp']['name'] do
  provider Chef::Provider::Service::Upstart
  supports :restart => true, :start => true, :stop => true
  action [:restart]
end