Capistrano 3 实现Rails自动化部署 - tianlu1677/tianlu1677.github.io GitHub Wiki

# unicorn 4.8.3
passenger
rails 4.1.4
ruby 2.1.2
capistrano 3.4.1

  Gemfile

group :development do
  gem 'capistrano', '3.4.1'
  gem 'capistrano-bundler'
  gem 'capistrano-rails'
  #gem 'capistrano-rbenv'
  # Add this if you're using rvm
  gem 'capistrano-rvm'
end

$ cap install

├── Capfile
├── config
│   ├── deploy
│   │   ├── production.rb
│   │   └── staging.rb
│   └── deploy.rb
└── lib
    └── capistrano
        └── tasks

cap bundler:install                # Install the current Bundler environment
cap deploy                         # Deploy a new release
cap deploy:check                   # Check required files and directories exist
cap deploy:check:directories       # Check shared and release directories exist
cap deploy:check:linked_dirs       # Check directories to be linked exist in shared
cap deploy:check:linked_files      # Check files to be linked exist in shared
cap deploy:check:make_linked_dirs  # Check directories of files to be linked exist in shared

cap install                        # Install Capistrano, cap install STAGES=staging,production

your_app/Capfile

require 'capistrano/setup'
require 'capistrano/deploy'

#require 'capistrano/rbenv'
require 'capistrano/rvm'
require 'capistrano/bundler'
require 'capistrano/rails/assets'
require 'capistrano/rails/migrations'

Dir.glob('lib/capistrano/tasks/*.cap').each { |r| import r }

# config valid only for Capistrano 3.1
lock '3.4.1'

set :application, 'qdaily4_app'

#if ENV['branch']
#  set :application, "cms_#{ENV['branch']}"
#end

set :rails_env, 'production'

set :scm, :copy
# set :repository, "."
# set :deploy_via, :copy

# set :repo_url, '[email protected]:kaikeba/cms.git'

# 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, "/home/qdaily4_app/projects/#{fetch(:application)}"

# 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}

# deploy.rb or stage file (staging.rb, production.rb or else)
#set :rvm_type, 'kkb'                     # Defaults to: :auto
# set :rvm_ruby_version, '2.1.1p76'      # Defaults to: 'default'
#set :rvm_custom_path, '~/.rvm'  # only needed if not detected

set :linked_files, %w{Gemfile.lock config/database.yml config/settings.yml config/sunspot.yml public/robots.txt}
set :linked_dirs, %w{log tmp vendor/bundle public/system public/uploads } #app/assets/subsystems/website/node_modules

#set



SSHKit.config.command_map[:rake]  = "bundle exec rake"
SSHKit.config.command_map[:rails] = "bundle exec rails"

# Default value for default_env is {}
# set :default_env, { path: "/home/kkb/.rvm/rubies/default/bin:/home/kkb/.rvm/bin:/home/kkb/.rvm/gems/ruby-2.1.1/bin:$PATH" }

set :default_shell, '/bin/bash -l'
set :bundle_flags, '--quiet'

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


namespace :deploy do
  desc 'grunt'

  task :grunt  do
    on roles(:app), in: :sequence, wait: 5 do
      grunt_dirs = %w{app/assets/subsystems/website/node_modules app/assets/subsystems/website/bower_components app/assets/subsystems/website/05-resource/lib} #app/assets/subsystems/website/node_modules
      grunt_dirs.each do |dir|
        execute " ln -nfs /home/kkb/projects/#{fetch(:application)}/shared/#{dir} /home/kkb/projects/#{fetch(:application)}/current/#{dir}"
      end
      execute "cd /home/kkb/projects/#{fetch(:application)}/current/app/assets/subsystems/website && bower update 'kkb-restful-service' --verbose && grunt" #, raise_on_non_zero_exit: false
    end
  end
  # after "assets:precompile", :grunt

  desc 'Restart application'
  task :restart do
    on roles(:app), in: :sequence, wait: 5 do
      # Your restart mechanism here, for example:
      # execute :touch, release_path.join('tmp/restart.txt')
      # execute "cd /home/kkb/projects/#{fetch(:application)}/current/app/assets/subsystems/website && npm install && grunt"

      execute " kill -USR2 `cat /home/kkb/projects/#{fetch(:application)}/current/tmp/pids/unicorn.pid` "
      execute " ln -nfs /home/kkb/projects/#{fetch(:application)}/shared/public/uploads /home/kkb/projects/#{fetch(:application)}/current/public/uploads "
      # execute :bundle, " exec unicorn_rails -c #{File.join(current_path,'config', 'unicorn.rb')} -D -E staging "
      #execute :bundle, "exec sidekiq -d -L /home/kkb/projects/cms/current/log/sidekiq.log -q mailer -q default -q often -q seldom -e production"
    end
  end
  after :publishing, :grunt
  after :publishing, :restart

  # after :restart, :clear_cache do
  #   on roles(:web), in: :groups, limit: 3, wait: 10 do
  #     # Here we can do anything such as:
  #     within release_path do
  #       execute :rake, 'cache:clear'
  #     end
  #   end
  # end

  after :finishing, "deploy:cleanup"

end

# 假设你服务器的ip是 67.87.98.78, 用户名是jack
# role :app, %w{server}
# role :web, %w{server}
# role :db,  %w{server}

role :app, %w{67.87.98.78}
role :web, %w{67.87.98.78}
role :db,  %w{67.87.98.78}
# server 'server', user: 'usernam', roles: %w{web app}, my_property: :my_value
server '67.87.98.78', user: 'jack', roles: %w{web app}, my_property: :my_value

.
├── current -> /home/ares/apps/appname/releases/20140325071623
├── releases
│   ├── 20140325065734
│   ├── 20140325071310
│   ├── 20140325071623
│   └── 20140325074922
├── repo
│   ├── branches
│   ├── config
│   ├── description
│   ├── FETCH_HEAD
│   ├── HEAD
│   ├── hooks
│   ├── info
│   ├── objects
│   ├── packed-refs
│   └── refs
├── revisions.log
└── shared
    ├── bin
    ├── bundle
    ├── config
    ├── log
    ├── public
    ├── tmp
    └── vendor

deploy:starting
deploy:started
deploy:reverting – revert server(s) to previous release
deploy:reverted – reverted hook
deploy:publishing
deploy:published
deploy:finishing_rollback – finish the rollback, clean up everything
deploy:finished