Capistrano sample setting file

Capfile

require "bundler/capistrano"
load 'deploy'
load 'deploy/assets'

Dir['vendor/gems/*/recipes/*.rb','vendor/plugins/*/recipes/*.rb'].each { |plugin| load(plugin) }
load 'config/deploy' # remove this line to skip loading any of the default tasks

deploy.rb

# Application info
set :application, "AppName"
set :repository,  "git@foobar.git"
set :deploy_to,   "/PATH/TO/#{application}"
set :rails_env, "production"

# Use capistrano command for unicorn
# https://github.com/sosedoff/capistrano-unicorn
require 'capistrano-unicorn'
set :unicorn_bin, 'unicorn_rails'

# Set rails user
set :user, "USER"
set :use_sudo, false

# Use git repository
set :scm, :git

role :web, "IP_or_SeverName"                          # Your HTTP server, Apache/etc
role :app, "IP_or_SeverName"                          # This may be the same as your `Web` server
role :db,  "IP_or_SeverName", :primary => true # This is where Rails migrations will run
# role :db,  "your slave db-server here"

# bundle install
# Configuration for `cap bundle:install`
set :bundle_gemfile,   "Gemfile"
set :bundle_dir,       File.join(fetch(:shared_path),  'bundle')
set :bundle_without,   [:development,  :test]
set :bundle_cmd,       "bundle" # e.g. "/opt/ruby/bin/bundle"
set :bundle_roles,     {:except => {:no_release => true}} # e.g. [:app,  :batch]

# Make database directory
namespace :database do
  desc "BackUp current database"
  task :create_dir, :role => [:app] do
    run "mkdir -p #{shared_path}/db"
  end
end
after 'deploy:update_code', 'database:create_dir'

unicorn.rb

# Set your full path to application.
application = "AppName"
deploy_to = "/PATH/TO/#{application}"

# Set unicorn options
worker_processes 16
preload_app true
timeout 180
listen "/tmp/.sock", :backlog => 64
listen 3000, :tcp_nopush => true

# Spawn unicorn master worker for user apps (group: apps)
user 'apps', 'apps'

# Fill path to your app
working_directory "#{deploy_to}/current"

# Should be 'production' by default, otherwise use other env
rails_env = ENV['RAILS_ENV'] || 'production'

# Log everything to one file
stderr_path "#{deploy_to}/shared/log/unicorn.log"
stdout_path "#{deploy_to}/shared/log/unicorn.log"

# Set master PID location
pid "#{deploy_to}/shared/pids/unicorn.pid"

before_fork do |server, worker|
  ActiveRecord::Base.connection.disconnect!

  old_pid = "#{server.config[:pid]}.oldbin"
  if File.exists?(old_pid) && server.pid != old_pid
    begin
      Process.kill("QUIT", File.read(old_pid).to_i)
    rescue Errno::ENOENT, Errno::ESRCH
      # someone else did our job for us
    end
  end
end

after_fork do |server, worker|
  ActiveRecord::Base.establish_connection
end

Using

• capistrano
• capistano-unicorn