deploy.rb

# NOTE: capistrano's  'current' dir can not exist when running script first time,
#  so need to place this script to diff place, for ex, /home/ubuntu/texenergo
# 1. make sure that ruby + capistrano are installed on server
# 2. run "capify ." which will create:
#  ./Capfile
#  and
#  ./config/deploy.rb
#  replace the deploy file with this script
# 3. for local deploy current user must have ability to ssh to same host:
# 3.1. add data from ~/.ssh/id_rsa.pub to ~/.ssh/authorized_keys
# 4. Onboot run:
# crontab -e
# @reboot cd /home/ubuntu/texenergo && cap deploy:setup && cap deploy

server '127.0.0.1', :web, :db, :primary => true
role :app, ''

set :app_env,     "production"
set :application, "Texenergo"
set :deploy_to, "/home/ubuntu/texenergo"
set :keep_releases, 5
set :rails_env, "production"

set :deploy_via, :remote_cache
set :scm, :git
set :git_enable_submodules, false
set :repository, "git@github.com:marzhaev/texenergo.git"
set :branch, "master"

set :rvm_autolibs_flag, "read-only"
set :rvm_ruby_string, :local
set :unicorn_env, "production"
set :user, "ubuntu"
set :use_sudo,  false

#before 'deploy:setup', 'rvm:install_rvm'
#before 'deploy:setup', 'rvm:install_ruby'
#before 'deploy:setup', 'rvm:create_gemset'
after "deploy:setup", "deploy:ensure_dirs"
after "deploy:update", "deploy:cleanup"

require 'bundler/capistrano'
#require "rvm/capistrano"

#load 'deploy/assets'

namespace :deploy do
  desc "Just to make sure that neccessary folders are in place"
  task :ensure_dirs do
    run "mkdir -p #{shared_path}/pids"
    run "mkdir -p #{shared_path}/log"
  end

  desc "Zero-downtime restart of Unicorn"
  task :restart, :except => { :no_release => true } do
    run "#{sudo} kill -s USR2 `cat #{shared_path}/pids/unicorn.pid`"
  end

  desc "Start unicorn"
  task :start, :except => { :no_release => true } do
    run "cd #{current_path} ; bundle exec unicorn_rails -c config/unicorn.rb -D -E #{rails_env}"
  end

  desc "Stop unicorn"
  task :stop, :except => { :no_release => true } do
    #run "#{sudo} kill -s QUIT `cat #{shared_path}/pids/unicorn.pid`"
    run "kill -s QUIT `cat #{shared_path}/pids/unicorn.pid`"
  end
end