在亚马逊EC2上使用capistrano进行生产时，资产不会预编译

我致力于使用capistrano部署到生产。 我面临几个问题，在修复大部分问题的同时，我们还有最后一个问题。

我们的预编译资产选项没有在生产中正确编译它们，因此，我们无法使用最后开发的function，因为它们严重依赖JS。

不试图影响任何人如何分析这个问题，这是我尝试使其工作的一些方法：

1. 本地预编译资产，推送到github仓库，从本地机器部署到ec2。 cap deploy是本地的，被推送到ec2的代码是github上的代码。
2. 尝试使用capistrano任务建议。 在Capfile中使用load’debloy’assets’并让cap deploy：setup任务完成它。
3. 使用选项cap deploy：assets：clean然后cap deploy：assets：precompile
4. 尝试从公共中删除资产，然后在deploy.rb中使用pipeline_precompile任务
5. 过期资产，强制rails预编译application.rb中更改assets.versions的所有内容
6. 尝试在environment / production.rb中的config.assets上尝试不同的组合
7. 最后，尝试使用RAILS_ENV =生产包exec rake资产删除生产中的公共/资产并在那里进行预编译：预编译

该应用程序只是没有使用新的JS文件。 如果你在repo或服务器本身检查代码，我在name.js.coffee中引入了一个简单的注释（“显示和隐藏菜单，具体取决于数据库中的数据”，这是在xxx行），这不是生产中编译的assets.js。 这是一个快速测试，以确保最近的资产被使用。

这里的问题是js和css文件，而不是rails。 这就是为什么它如此难以测试或找到..因此最近js框架普及的原因之一。 如果出现问题，你不必自杀，寻找问题所在。如果问题是ruby或铁轨，通常不需要那么长时间才能找到问题。 一旦你获得js，css和跨浏览器兼容性，那么这就是手头的问题。

这是我的deploy.rb文件。 运行轨道3.2.12 ruby​​-1.9.3-p327：

# $:.unshift(File.expand_path('./lib', ENV['rvm_path'])) # Load rvm's capistrono plugins require 'rvm/capistrano' require 'bundler/capistrano' set :rvm_type, :user set :user, 'username' set :domain, 'ip_address' set :application, "app_pro" set :keep_releases, 2 # It keeps on two old releases. # git repo details set :scm, :git # You can set :scm explicitly or Capistrano will make an intelligent guess based on known version control directory names set :repository, "[e-mail]:user/app.git" set :scm_username, 'user' set :git_enable_submodules, 1 set :git_shallow_clone, 1 set :branch, 'master' # Or: `accurev`, `bzr`, `cvs`, `darcs`, `git`, `mercurial`, `perforce`, `subversion` or `none` role :web, domain # Your HTTP server, Apache/etc role :app, domain # This may be the same as your `Web` server role :db, domain, :primary => true# 'ec2-23-23-156-118.compute-1.amazonaws.com' This is where Rails migrations will run # role :db, "your slave db-server here" # deply options default_run_options[:pty] = true set :ssh_options, {:forward_agent => true} set :ssh_options, {:auth_methods => "publickey"} set :ssh_options, {:keys => ["~/Downloads/key.pem"]} set :deploy_to, "/home/user/appdir" set :deploy_via, :remote_cache set :use_sudo, false # if you want to clean up old releases on each deploy uncomment this: after "deploy:restart", "deploy:cleanup" # if you're still using the script/reaper helper you will need # these http://github.com/rails/irs_process_scripts # If you are using Passenger mod_rails uncomment this: namespace :deploy do task :start do # run COMMAND="/etc/init.d/nginx restart" invoke SUDO=1 run "sudo /etc/init.d/nginx restart" # exit end after "deploy:start", "deploy:cleanup" task :stop do ; end task :restart, :roles => :app, :except => { :no_release => true } do run "touch #{File.join(current_path,'tmp','restart.txt')}" end task :setup_config, roles: :app do run "mkdir -p #{shared_path}/config" put File.read("config/database.example.yml"), "#{shared_path}/config/database.yml" puts 'now edit the config file database in #{shared_path}' end after 'deploy:setup', 'deploy:setup_config' desc "Symlink shared resources on each release - not used" task :symlink_config, :roles => :app do run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml" end after 'deploy:finalize_update', 'deploy:symlink_config' desc "It helps to seed database with values" task :seed do run "cd #{current_path}; bundle exec rake db:seed RAILS_ENV=#{rails_env}" end task :create_schema do run "cd #{current_path}; bundle exec rake db:create RAILS_ENV=#{rails_env} --trace" end end 

正在运行的新/替代（deploy_new2.rb）文件：

 # On-working new/alternative deploy.rb file: require 'rvm/capistrano' require 'bundler/capistrano' set :rvm_type, :user set :application, "ip_address" set :domain, 'ip_address' # Roles role :web, domain role :app, domain role :db, domain, :primary => true #deployment details set :deploy_via, :remote_cache set :user, "username" set :copy_compression, :bz2 set :git_shallow_clone, 1 set :scm_verbose, true set :use_sudo, false set :deploy_to, "/home/user/dir" default_run_options[:pty] = true set :ssh_options, {:forward_agent => true} set :ssh_options, {:auth_methods => "publickey"} set :ssh_options, {:keys => ["~/Downloads/key.pem"]} #repo details set :scm, :git set :repository, "[e-mail]:user/app.git" set :scm_username, 'user' set :keep_releases, 2 set :branch, "master" namespace :deploy do # task :start, :roles => :app, :except => { :no_release => true } do # # not need to restart nginx every time # # run "service nginx start" # run "cd #{release_path} && touch tmp/restart.txt" # end # after "deploy:start", "deploy:cleanup" # after 'deploy:cleanup', 'deploy:symlink_config' # You do not need reload nginx every time, eventhought if you use passenger or unicorn # task :stop, :roles => :app, :except => { :no_release => true } do # run "service nginx stop" # end # task :graceful_stop, :roles => :app, :except => { :no_release => true } do # run "service nginx stop" # end # task :reload, :roles => :app, :except => { :no_release => true } do # run "cd #{release_path} && touch tmp/restart.txt" # run "service nginx restart" # end task :restart, :roles => :app, :except => { :no_release => true } do run "cd #{release_path} && touch tmp/restart.txt" end # If you enable assets/deploy in Capfile, you do not need this # task :pipeline_precompile do # # run "cd #{release_path}; RAILS_ENV=#{rails_env} bundle exec rake assets:precompile" # # precompile assets before deploy and upload them to server # # run_locally("RAILS_ENV=#{rails_env} rake assets:clean && RAILS_ENV=#{rails_env} rake assets:precompile") # # top.upload "public/assets", "#{release_path}/public/assets", :via =>:scp, :recursive => true # end end # you do not need to this, because you already add require 'bundler/capistrano' # before "deploy:assets:precompile", "bundle:install" 

和./Capfile：

 load 'deploy' # Uncomment if you are using Rails' asset pipeline load 'deploy/assets' load 'config/deploy' # remove this line to skip loading any of the default tasks 

预先感谢您的任何帮助！ 如果您需要更多信息，请告诉我。

Answer 1

您不需要自己的：precompile_assets任务。 您通过在Capfile中加载’deploy / assets’来使用Capistrano。

从deploy.rb中删除：precompile_assets任务可能会解决此问题。 如果你看一下Capistrano的源代码，你会看到它实现：precompile_assets完全不同： https ： //github.com/capistrano/capistrano/blob/legacy-v2/lib/capistrano/recipes/deploy/assets.rb

Answer 2

您可以尝试此代码

 # On-working new/alternative deploy.rb file: require 'rvm/capistrano' require 'bundler/capistrano' set :rvm_type, :user set :application, "ip_address" set :domain, 'ip_address' # Roles role :web, domain role :app, domain role :db, domain, :primary => true #deployment details set :deploy_via, :remote_cache set :user, "username" set :copy_compression, :bz2 set :git_shallow_clone, 1 set :scm_verbose, true set :use_sudo, false set :deploy_to, "/home/user/dir" default_run_options[:pty] = true set :ssh_options, {:forward_agent => true} set :ssh_options, {:auth_methods => "publickey"} set :ssh_options, {:keys => ["~/Downloads/key.pem"]} #repo details set :scm, :git set :repository, "[e-mail]:user/app.git" set :scm_username, 'user' set :keep_releases, 2 set :branch, "master" namespace :deploy do # task :start, :roles => :app, :except => { :no_release => true } do # # not need to restart nginx every time # # run "service nginx start" # run "cd #{release_path} && touch tmp/restart.txt" # end # after "deploy:start", "deploy:cleanup" # after 'deploy:cleanup', 'deploy:symlink_config' # You do not need reload nginx every time, eventhought if you use passenger or unicorn # task :stop, :roles => :app, :except => { :no_release => true } do # run "service nginx stop" # end # task :graceful_stop, :roles => :app, :except => { :no_release => true } do # run "service nginx stop" # end # task :reload, :roles => :app, :except => { :no_release => true } do # run "cd #{release_path} && touch tmp/restart.txt" # run "service nginx restart" # end task :restart, :roles => :app, :except => { :no_release => true } do run "cd #{release_path} && touch tmp/restart.txt" end # If you enable assets/deploy in Capfile, you do not need this # task :pipeline_precompile do # # run "cd #{release_path}; RAILS_ENV=#{rails_env} bundle exec rake assets:precompile" # # precompile assets before deploy and upload them to server # # run_locally("RAILS_ENV=#{rails_env} rake assets:clean && RAILS_ENV=#{rails_env} rake assets:precompile") # # top.upload "public/assets", "#{release_path}/public/assets", :via =>:scp, :recursive => true # end end # you do not need to this, because you already add require 'bundler/capistrano' # before "deploy:assets:precompile", "bundle:install" 

Answer 3

解决方案：这是工作部署文件 –

 require 'rvm/capistrano' require 'bundler/capistrano' set :rvm_type, :user set :application, "ip_address" set :domain, 'ip_address' # Roles role :web, domain role :app, domain role :db, domain, :primary => true #deployment details set :deploy_via, :remote_cache set :user, "user" set :copy_compression, :bz2 set :git_shallow_clone, 1 set :scm_verbose, true set :use_sudo, false set :deploy_to, "/home/user/app_dir" default_run_options[:pty] = true set :ssh_options, {:forward_agent => true} set :ssh_options, {:auth_methods => "publickey"} set :ssh_options, {:keys => ["~/sites/app/config/key.pem"]} #repo details set :scm, :git set :repository, "[e-mail]:github_id/app.git" set :scm_username, 'github_id' set :keep_releases, 2 set :branch, "master" after 'deploy:update_code', 'deploy:symlink_db' namespace :deploy do # task :start, :roles => :app, :except => { :no_release => true } do # # not need to restart nginx every time # # run "service nginx start" # run "cd #{release_path} && touch tmp/restart.txt" # end # after "deploy:start", "deploy:cleanup" # after 'deploy:cleanup', 'deploy:symlink_config' # You do not need reload nginx every time, eventhought if you use passenger or unicorn # task :stop, :roles => :app, :except => { :no_release => true } do # run "service nginx stop" # end # task :graceful_stop, :roles => :app, :except => { :no_release => true } do # run "service nginx stop" # end # task :reload, :roles => :app, :except => { :no_release => true } do # run "cd #{release_path} && touch tmp/restart.txt" # run "service nginx restart" # end task :restart, :roles => :app, :except => { :no_release => true } do run "cd #{release_path} && touch tmp/restart.txt" end desc "Symlinks the database.yml" task :symlink_db, :roles => :app do run "ln -nfs #{deploy_to}/shared/config/database.yml #{release_path}/config/database.yml" end # If you enable assets/deploy in Capfile, you do not need this # task :pipeline_precompile do # # run "cd #{release_path}; RAILS_ENV=#{rails_env} bundle exec rake assets:precompile" # # precompile assets before deploy and upload them to server # # run_locally("RAILS_ENV=#{rails_env} rake assets:clean && RAILS_ENV=#{rails_env} rake assets:precompile") # # top.upload "public/assets", "#{release_path}/public/assets", :via =>:scp, :recursive => true # end end # you do not need to this, because you already add require 'bundler/capistrano' # before "deploy:assets:precompile", "bundle:install" 

Answer 4

我发现capistrano资产编译规则在捆绑器规则之前运行，所以没有任何工作，我写了自己的：

  after "bundle:install" do run "cd #{release_path}; RAILS_ENV=production bundle exec rake assets:precompile" end 

然后我发现我真的对在我的生产机器上安装js运行时不感兴趣。 我回过头来把我的资产放到我的git树的deploy分支中。 我第一次这样做，我忘了包含manifest.yml文件。

http://jimneath.org/2012/05/05/precompile-assets-using-a-git-hook.html

Answer 5

如果您在资产编译期间运行的Gemfile中有uglifier，则可能已将其配置为仅删除您用于评估是否正在部署已更改的Javascript资产的注释。

Uglifier的自述文件说这是可能的，并区分了几种注释。 因此，有可能在资产编制后看到另一条评论仍未被误导。

判断这种可能性的另一个线索是（如你所说）这个问题是在解决其他问题的漫长（累人）过程之后产生的。 通常，这可以阻止人们这样的感知; 长期的努力可以“锁定”他们的假设。

因此，请尝试在Javascript中添加变量声明而不是注释。

Answer 6

我有一个与此类似的问题，但解决方案是删除Gemfile中的资产组，因为默认任务上限用于预编译取决于看似不在单独组中的资产。