config/deploy.rb

# config valid only for Capistrano 3.1
lock '3.2.1'

set :application, 'НАЗВАНИЕ_ПРИЛОЖЕНИЯ'
application = 'НАЗВАНИЕ_ПРИЛОЖЕНИЯ'
set :repo_url, 'ПУТЬ К РЕПОЗИТОРИЮ'
#set :user, "deployer"
set :rails_env, "production"
set :bundle_flags, "--deployment"

# Default branch is :master
# ask :branch, proc { `git rev-parse --abbrev-ref HEAD`.chomp }.call

# Default deploy_to directory is /var/www/my_app
# set :deploy_to, '/var/www/my_app'

# Default value for :scm is :git
# set :scm, :git

# Default value for :format is :pretty
# set :format, :pretty

# Default value for :log_level is :debug
# set :log_level, :debug

# Default value for :pty is false
set :pty, true

# Default value for :linked_files is []
# set :linked_files, %w{config/database.yml}

# Default value for linked_dirs is []
# set :linked_dirs, %w{bin log tmp/pids tmp/cache tmp/sockets vendor/bundle public/system}

# Default value for default_env is {}
# set :default_env, { path: "/opt/ruby/bin:$PATH" }

# Default value for keep_releases is 5
# set :keep_releases, 5

set :deploy_to, "/home/deployer/apps/#{application}"
#set :deploy_via, :remote_cache

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

set :ssh_options, { forward_agent: true }

set :unicorn_pid, "#{shared_path}/pids/unicorn.pid"
set :unicorn_config, "#{shared_path}/config/unicorn.rb"

namespace :git do
  desc 'Push changes to repository'
  task :push do
    ask(:message, "Commit message?")
    run_locally do
      execute "git add -A"
      execute "git commit -m '#{fetch(:message)}'"
      execute "git push"
    end
  end
end

namespace :unicorn do
  desc 'Stop Unicorn'
  task :stop do
    on roles(:app) do
      if test("[ -f #{fetch(:unicorn_pid)} ]")
        execute :kill, capture(:cat, fetch(:unicorn_pid))
      end
    end
  end

  desc 'Start Unicorn'
  task :start do
    on roles(:app) do
      within current_path do
        with rails_env: fetch(:rails_env) do
          execute :bundle, "exec unicorn -c #{fetch(:unicorn_config)} -D"
        end
      end
    end
  end

  desc 'Reload Unicorn without killing master process'
  task :reload do
    on roles(:app) do
      if test("[ -f #{fetch(:unicorn_pid)} ]")
        execute :kill, '-s USR2', capture(:cat, fetch(:unicorn_pid))
      else
        error 'Unicorn process not running'
      end
    end
  end

  desc 'Restart Unicorn'
  task :restart
  before :restart, :stop
  before :restart, :start
end

namespace :deploy do
  desc 'Setup Config'
  task :setup_config do
    on roles(:all) do
      execute "mkdir -p #{shared_path}/config"
      execute "mkdir -p #{shared_path}/pids"
      upload!('shared/database.yml', "#{shared_path}/config/")
      upload!('shared/nginx.conf', "#{shared_path}/config/")
      upload!('shared/unicorn.rb', "#{shared_path}/config/")
      sudo "ln -nfs #{shared_path}/config/nginx.conf /etc/nginx/sites-enabled/#{application}"
      sudo "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml"
    end
  end

  # before :starting, "git:push"
  after :updating, "deploy:setup_config"
  before :publishing, "unicorn:stop"
  after :publishing, "unicorn:start"
  after :finishing, "deploy:cleanup" # keep only the last 5 releases
end