Capistrano 3：部署后不是 "refreshed" 代码（网站保持部署前状态）

Question

我在网站上做了一些修改（纯HTML+CSS），部署到服务器上，刷新浏览器后内容是一样的。

于是我登陆服务器，杀了独角兽，手动启动，新内容终于出现了。

如何自动执行此操作？

目前，我有这个 deploy.rb 设置：

# config valid only for current version of Capistrano
lock "3.8.1"

set :application, "project"
set :repo_url, "git@bitbucket.org:username/project.git"
set :branch, "master"
set :tmp_dir, '/home/deployer/tmp'

set :deploy_to, "/home/deployer/apps/project"
set :keep_releases, 5

set(:executable_config_files, %w(
  unicorn_init.sh
))

# files which need to be symlinked to other parts of the
# filesystem. For example nginx virtualhosts, log rotation
# init scripts etc.
set(:symlinks, [
  {
    source: "nginx.conf",
    link: "/etc/nginx/sites-enabled/default"
  },
  {
    source: "unicorn_init.sh",
    link: "/etc/init.d/unicorn_#{fetch(:application)}"
  },
  {
    source: "log_rotation",
   link: "/etc/logrotate.d/#{fetch(:application)}"
  },
  {
    source: "monit",
    link: "/etc/monit/conf.d/#{fetch(:application)}.conf"
  }
])


namespace :deploy do   
  desc 'Restart application'
  task :restart do
    task :restart do
      invoke 'unicorn:reload'
    end
  end
  after :publishing, :restart    

  desc "Make sure local git is in sync with remote."
  task :check_revision do
    on roles(:web) do
      unless `git rev-parse HEAD` == `git rev-parse origin/master`
        puts "WARNING: HEAD is not the same as origin/master"
        puts "Run `git push` to sync changes."
        exit
      end
    end
  end
  before "deploy", "deploy:check_revision"
end

为了不需要手动重启服务器，我还需要添加什么？

谢谢

Answer 1

您可以创建一个任务来为您执行此重新启动步骤，并在部署过程之后调用它。也许它可以运行一个 shell 脚本，其中包含重新启动 Unicorn 所需的命令。将您使用的命令放入脚本中，并通过 Capistrano 任务调用它。像这样：

desc 'Restarts the application calling the appropriate Unicorn shell script.'
task :restart_unicorn do
  on roles(:app) do
    execute '/etc/init.d/restart_unicorn.sh'
  end
end

after 'deploy:published', 'restart_unicorn'

更多详细信息here。不要忘记修改 shell 文件权限以允许执行。任务代码可以在您的 deploy.rb 文件中，但我建议将其移至特定的 Capistrano 任务文件以保持您的代码井井有条。希望这对您有所帮助！

PS.: 也看看Capistrano flow。实际上，您可以在流程的任何部分之前或之后为运行创建任务。

Capistrano 3：部署后不是 "refreshed" 代码（网站保持部署前状态）

Capistrano 3: After deployment is not "refreshed" code (website stays as prior the deploy)

ruby

ruby-on-rails-3

nginx

capistrano

unicorn