Capistrano deploy setting(via bastion)

Capfile

# AWS SDK
require 'aws-sdk'
Aws::EC2::Resource

# Load DSL and set up stages
require "capistrano/setup"

# Include default deployment tasks
require "capistrano/deploy"
require 'capistrano/safe_deploy_to'
#   https://github.com/capistrano/rvm
#   https://github.com/capistrano/rbenv
#   https://github.com/capistrano/chruby
#   https://github.com/capistrano/bundler
#   https://github.com/capistrano/passenger

require 'capistrano/rbenv'
require 'capistrano/rails'
require 'capistrano3/unicorn'
require 'slackistrano/capistrano'↲
require_relative 'lib/custom_messaging'

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

deploy.rb

lock '3.6.1'

set :application, 'mamorio-server'
set :repo_url, 'git@github.com:xxxxxxxx/hoge-server.git'

set :aws_region, 'ap-northeast-1'
set :aws_tag_role, 'production'
set :deploy_user, 'ubuntu'
set :deploy_ssh_keys, '~/.ssh/xxxxxs.pem'
set :name, 'mamoriohogehoge'

set :branch, 'master'

set :deploy_to, "/var/www/#{fetch(:application)}"
set :scm, :git
set :pty, true

set :format, :pretty
set :log_level, :debug

set :keep_releases, 10

set :default_env, {
  'AWS_ACCESS_KEY_ID'        => 'hogehoge',
  'AWS_SECRET_ACCESS_KEY'    => 'hogehoge',
  'DATABASE_HOST'            => 'hogehoge',
  'ROLLBAR_ACCESS_TOKEN'     => 'hogehoge',
  'XXXXXXX_SERVER_PSQL_USER' => 'hogehoge',
  'XXXXXXX_SERVER_PSQL_PASS' => 'hogehoge'

}

# Default value for :linked_files is []
set :linked_files, fetch(:linked_files, []).push('config/database.yml', 'config/secrets.yml')
set :linked_dirs, fetch(:linked_dirs, []).push('log', 'tmp/pids', 'tmp/cache', 'tmp/sockets', 'vendor/bundle')

set :rbenv_type, :user
set :rbenv_ruby, '2.1.8'
set :rbenv_prefix, "#{fetch(:rbenv_path)}/bin/rbenv exec"
set :rbenv_map_bins, %w(rake gem bundle ruby rails)
set :rbenv_roles, :all

set :rails_env, 'production'
set :unicorn_pid, "log/unicorn/unicorn.pid}"
set :unicorn_config_path, "config/unicorn/production.rb"
set :unicorn_rack_env, 'production'

set :unicorn_config_path, "config/unicorn.rb"
set :unicorn_rack_env, 'deployment'

set :slackistrano, {
 klass: Slackistrano::CustomMessaging,
 channel: '#mamorio-server',
 webhook: 'https://hooks.slack.com/services/hoge'
}

namespace :deploy do

  desc 'Upload database.yml'
  task :upload do
    on roles(:app) do |host|
      if test "[ ! -d config ]"
        execute "mkdir -p config"
      end
      upload!('config/database.yml', "config/database.yml")
    end
  end

  desc 'Create Database'
  task :db_create do
    on roles(:db) do |host|
      with rails_env: fetch(:rails_env) do
        within current_path do
          execute :bundle, :exec, :rake, 'db:create'
      end
      end
    end
  end

  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

  desc 'Restart application'
  task :restart do
    on roles(:app), in: :sequence, wait: 5 do
      invoke 'unicorn:restart'
    end
  end

  before :starting, :upload
  after :publishing, :restart

end

after 'deploy:publishing', 'deploy:restart'
namespace :deploy do
  task :restart do
    invoke 'unicorn:restart'
  end
end

gistfile1.txt

module Slackistrano
  class CustomMessaging < Messaging::Base

    def channels_for(action)
      if action == :failed
        "#mamorio-server"
      else
        super
      end
    end

    def payload_for_updating
      nil
    end

    def payload_for_reverting
      nil
    end

    # Fancy updated message.
    # See https://api.slack.com/docs/message-attachments
    def payload_for_updated
      {
        attachments: [{
          color: 'good',
          title: ':boom: hogeがデプロイされました. :fire:',
          fields: [{
            title: 'Environment',
            value: stage,
            short: true
          }, {
            title: 'Branch',
            value: branch,
            short: true
          }, {
            title: 'Deployer',
            value: deployer,
            short: true
          }, {
            title: 'Time',
            value: elapsed_time,
            short: true
          }],
          fallback: super[:text]
        }]
      }
    end

    # Default reverted message.  Alternatively simply do not redefine this
    # method.
    def payload_for_reverted
      super
    end

    # Slightly tweaked failed message.
    # See https://api.slack.com/docs/message-formatting
    def payload_for_failed
      payload = super
      payload[:text] = "OMG :fire: #{payload[:text]}"
      payload
    end

    # Override the deployer helper to pull the full name from the password file.
    # See https://github.com/phallstrom/slackistrano/blob/master/lib/slackistrano/messaging/helpers.rb
    def deployer
      Etc.getpwnam(ENV['USER']).gecos
    end
  end
end

production.rb

require 'aws-sdk-core'
require 'net/ssh/proxy/command'

ec2 = Aws::EC2::Client.new(region: fetch(:aws_region))

ec2_filtered = ec2.describe_instances(
    filters:[
        {name: "tag:name", values: [fetch(:name)]},
        {name: "tag:role", values: [fetch(:aws_tag_role)]},
        {name: 'instance-state-name', values: ['running']}
    ])

instances = ec2_filtered.reservations.map(&:instances).flatten.map(&:private_ip_address)

set :branch, 'master'

role :app, instances
role :web, instances
role :db, [instances.first]

instances.each do |address|
  server address,
    user: fetch(:deploy_user),
    ssh_options: {
    forward_agent: true,
    keys: fetch(:deploy_ssh_keys),
    proxy: Net::SSH::Proxy::Command::new('ssh bastion.mamorio -W %h:%p')
  }
end

unicorn.cap

namespace :unicorn do
  task :environment do
    set :unicorn_pid, "#{shared_path}/tmp/pids/unicorn.pid"
    set :unicorn_config, "#{current_path}/config/unicorn/#{fetch(:rails_env)}.rb"
  end

  def start_unicorn
    within current_path do
      execute :bundle, :exec, :unicorn, "-c #{fetch(:unicorn_config)} -E #{fetch(:rails_env)} -D"
    end
  end

  def stop_unicorn
    execute :kill, "-s QUIT $(< #{fetch(:unicorn_pid)})"
  end

  def reload_unicorn
    execute :kill, "-s USR2 $(< #{fetch(:unicorn_pid)})"
  end

  def force_stop_unicorn
    execute :kill, "$(< #{fetch(:unicorn_pid)})"
  end

  desc "Start unicorn server"
  task :start => :environment do
    on roles(:app) do
      start_unicorn
    end
  end

  desc "Stop unicorn server gracefully"
  task :stop => :environment do
    on roles(:app) do
      stop_unicorn
    end
  end

  desc "Restart unicorn server gracefully"
  task :restart => :environment do
    on roles(:app) do
      if test("[ -f #{fetch(:unicorn_pid)} ]")
        reload_unicorn
      else
        start_unicorn
      end
    end
  end

  desc "Stop unicorn server immediately"
  task :force_stop => :environment do
    on roles(:app) do
      force_stop_unicorn
    end
  end
end