node.jsアプリケーションのcapistranoのdeployファイルの例

deploy.rb

require 'capistrano_colors'
require 'capistrano'
require 'capistrano/ext/multistage'

set :application, "app_name"
set :repository, "repo path"

set :scm, "git"
set :branch, "master"
set :deploy_via, :copy

set :shared_children, %w(logs node_modules)

namespace :deploy do
  task :default do
    update
    start
  end

  task :cold do
    update
    start
  end

  task :setup, :except => {:no_release => true} do
    dirs = [deploy_to, release_path, shared_path]
    dirs += shared_children.map { |d| File.join(shared_path, d)}
    run "#{try_sudo} mkdir -p #{dirs.join(' ')}"
    run "#{try_sudo} chmod g+w #{dirs.join(' ')}" if fetch(:group_writable,true)
  end

  task :finalize_update, :except => {:no_release => true} do
    run "#{try_sudo} chmod -R g+w #{latest_release}" if fetch(:group_writable,true)
    run <<-CMD
      #{try_sudo} rm -rf #{latest_release}/logs #{latest_release}/node_modules &&
      #{try_sudo} ln -s #{shared_path}/logs #{latest_release}/logs &&
      #{try_sudo} ln -s #{shared_path}/node_modules #{latest_release}/node_modules
    CMD
  end

  task :start, :roles => :app do
    stop
    sleep 5
    run <<-CMD
      export PATH=#{node_path}:$PATH &&
      cd #{File.join(deploy_to,"current")} &&
      NODE_ENV=#{node_env} forever start -p #{File.join(deploy_to,"current")} -o logs/out.log -e logs/error.log #{node_script}
    CMD
  end

  task :stop, :roles => :app do
    run <<-CMD
      export PATH=#{node_path}:$PATH &&
      forever stop #{node_script}
    CMD
  end

  task :restart, :roles => :app do
    start
  end

  task :npm, :roles => :app do
    run <<-CMD
      export PATH=#{node_path}:$PATH &&
      nodebrew use #{node_version} &&
      cd #{latest_release} &&
      npm install
    CMD
  end
end

after 'deploy:finalize_update', 'deploy:npm'

staging.rb

set :node_env, "staging"
set :user, "username"
set :password, "pass"
set :use_sudo, false
set :default_run_options, :pty => true
set :deploy_to, "/var/www/app/#{application}"
set :node_path, "/home/user/.nodebrew/current/bin"
set :node_version, "v0.4.12"
set :node_script, "app.js"

role :app, "remote server address"