Question

我正在为Capistrano 3写一个发条配方。看了Sidekiq's recipe之后我想出了这个：

namespace :load do
  task :defaults do
    set :clockwork_default_hooks, -> { true }

    set :clockwork_pid,           -> { 'tmp/pids/clockwork.pid' }
    set :clockwork_log,           -> { "#{current_path}/log/clockwork.log" }

    set :clockwork_roles,         -> { :app }

    set :clockwork_config,        -> { 'clock.rb' }
  end
end

namespace :deploy do
  before :starting, :check_clockwork_hooks do
    invoke 'clockwork:add_default_hooks' if fetch(:clockwork_default_hooks)
  end
end

namespace :clockwork do
  def clockwork_pid_full_path
    if fetch(:clockwork_pid).start_with?('/')
      fetch(:clockwork_pid)
    else
      "#{current_path}/#{fetch(:clockwork_pid)}"
    end
  end

  task :add_default_hooks do
    after 'deploy:updated',   'clockwork:stop'
    after 'deploy:reverted',  'clockwork:stop'
    after 'deploy:published', 'clockwork:start'
  end

  desc 'Stop clockwork'
  task :stop do
    on roles fetch(:clockwork_roles) do
      if test "[ -f #{clockwork_pid_full_path} ]"
        within current_path do
          execute "kill -int $(cat #{clockwork_pid_full_path}) 2>/dev/null"
        end
      else
        execute "echo 'clockwork was not running'"
      end
    end
  end

  desc 'Start clockwork'
  task :start do
    on roles fetch(:clockwork_roles) do
      within current_path do
        with rails_env: fetch(:rails_env, 'production') do
          execute "export RAILS_ENV=$RAILS_ENV"
          execute :bundle, :exec, :clockwork, "#{fetch(:clockwork_config)} >> #{fetch(:clockwork_log)} 2>&1 &"
        end
        execute "ps -eo pid,command | grep clockwork | grep -v grep | awk '{print $1}' > #{clockwork_pid_full_path}"
      end
    end
  end

  desc 'Restart clockwork'
  task :restart do
    invoke 'clockwork:stop'
    invoke 'clockwork:start'
  end
end

但是，只有在最后删除2>&1 &部分时，发条：启动任务才有效。如果我尝试在后台启动该过程，似乎没有任何事情发生。

我做错了什么？

Answer 1

这就是我最终的结果。我从Gist找到了它。

namespace :clockwork do
  desc "Stop clockwork"
  task :stop do
    on roles(:app) do
      within release_path do
        with rails_env: fetch(:rails_env) do
          execute :bundle, :exec, :clockworkd, "-c clock.rb --pid-dir=#{cw_pid_dir} --log-dir=#{cw_log_dir} --log stop"
        end
      end
    end
  end

  desc "Clockwork status"
  task :status do
    on roles(:app) do
      within release_path do
        with rails_env: fetch(:rails_env) do
          execute :bundle, :exec, :clockworkd, "-c clock.rb --pid-dir=#{cw_pid_dir} --log-dir=#{cw_log_dir} --log status"
        end
      end
    end
  end

  desc "Start clockwork"
  task :start do
    on roles(:app) do
      within release_path do
        with rails_env: fetch(:rails_env) do
          execute :bundle, :exec, :clockworkd, "-c clock.rb --pid-dir=#{cw_pid_dir} --log-dir=#{cw_log_dir} --log start"
        end
      end
    end
  end

  desc "Restart clockwork"
  task :restart do
    on roles(:app) do
      within release_path do
        with rails_env: fetch(:rails_env) do
          execute :bundle, :exec, :clockworkd, "-c clock.rb --pid-dir=#{cw_pid_dir} --log-dir=#{cw_log_dir} --log restart"
        end
      end
    end
  end

  def cw_log_dir
    "#{shared_path}/log"
  end

  def cw_pid_dir
    "#{shared_path}/tmp/pids"
  end

  def rails_env
    fetch(:rails_env, false) ? "RAILS_ENV=#{fetch(:rails_env)}" : ''
  end
end

Answer 2

试试这个宝石capistrano-clockwork。

这对我来说非常好用。我试过几个选项＆＃39; gists＆＃39;但没有成功。

您只需更新此文件Gemfile，Capifile和deploy.rb。

的Gemfile：

gem 'daemons'
gem 'capistrano-clockwork', group: :development

Capfile：

require 'capistrano/clockwork'

deploy.rb：

set :clockwork_file, "lib/name_of_your_clockwork_config.rb"

请记住在部署之前执行bundle install;）

Capistrano 3的发条食谱

2 个答案: