捆绑安装不适用于 capistrano答案

【问题标题】：bundle install doesn't work from capistrano捆绑安装不适用于 capistrano
【发布时间】：2013-10-22 04:28:21
【问题描述】：

我想通过capistrano 3.0 部署我的简单rails 4.0 应用程序。

我使用 bundler 1.3.5，所以我添加了 capistrano-bundler gem 以将捆绑器与 capistrano 集成。

我的配置非常简单（几乎是默认配置）：

set :bundle_gemfile, -> { release_path.join('Gemfile') }
set :bundle_dir, -> { shared_path.join('bundle') }
set :bundle_flags, ''
set :bundle_without, %w{test development}.join(' ')
set :bundle_binstubs, -> { shared_path.join('bin') }
set :bundle_roles, :all

当我运行 cap staging deploy --trace 时它失败了：

[50b524bc] Running /usr/bin/env bundle --gemfile /home/webmaster/www/api/releases/20131014144650/Gemfile --path /home/webmaster/www/api/shared/bundle  --binstubs /home/webmaster/www/api/shared/bin --without test development on 125.51.3.1
DEBUG [50b144bc] Command: cd /home/webmaster/www/api/releases/20131014144650 && /usr/bin/env bundle --gemfile /home/webmaster/www/api/releases/20131014144650/Gemfile --path /home/webmaster/www/api/shared/bundle  --binstubs /home/webmaster/www/api/shared/bin --without test development
cap aborted!
bundle stdout: Nothing written
bundle stderr: Nothing written
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/command.rb:94:in `exit_status='
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:125:in `block (4 levels) in _execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:551:in `call'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:551:in `do_request'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:561:in `channel_request'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:465:in `dispatch_incoming_packets'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:221:in `preprocess'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:205:in `process'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `block in loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:269:in `wait'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:147:in `block (2 levels) in _execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:514:in `call'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:514:in `do_open_confirmation'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:545:in `channel_open_confirmation'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:465:in `dispatch_incoming_packets'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:221:in `preprocess'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:205:in `process'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `block in loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:149:in `block in _execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:106:in `tap'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:106:in `_execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:54:in `execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-bundler-1.0.0/lib/capistrano/tasks/bundler.cap:20:in `block (4 levels) in <top (required)>'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/abstract.rb:81:in `within'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-bundler-1.0.0/lib/capistrano/tasks/bundler.cap:19:in `block (3 levels) in <top (required)>'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:42:in `instance_exec'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:42:in `run'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/runners/parallel.rb:12:in `block (2 levels) in execute'
Tasks: TOP => deploy:updated => bundler:install

但是如果我复制此命令并运行 ssh 一切正常（所有 gem 安装成功）我该如何修复/调试它？

【问题讨论】：

Rubygems 今天有问题。请稍后再试...
@spickermann 但如果我通过 ssh 运行此命令，gems 下载效果很好......
发布您的 capfile 和 deploy.rb，可能存在一些配置问题。另外，请确保您的部署用户对 gem 的目录具有写入权限

标签： ruby-on-rails ruby deployment capistrano bundler

【解决方案1】：

gem install bundler

为了 Capistrano，我需要在我的部署用户上运行：

/usr/local/rvm/bin/rvm 2.4.0 do bundle install --path /var/www/hivebench-api/shared/bundle --without development test --deployment --quiet

通过！

【讨论】：

【解决方案2】：

在您的 config/deploy/production.rb 文件中放置

set :rvm_ruby_version, '2.0.0-p247'

见https://github.com/capistrano/rvm

【讨论】：

【解决方案3】：

简单的解决方案，适用于所有 Capistrano 3 版本：

gem 'rvm1-capistrano3', require: false

在 Capfile 中添加

require 'rvm1/capistrano3'

https://github.com/rvm/rvm1-capistrano3

【讨论】：

【解决方案4】：

我有：

set :bundle_flags, '--system --quiet'

改为：

set :bundle_flags, '--deployment --quiet'

这解决了一个问题。

【讨论】：

【解决方案5】：

这适用于 capistrano 3：

  task :bundle_list do
    on roles(:app) do
      within release_path do
        with rails_env: fetch(:rails_env) do
          execute :bundle, "list"
        end
      end
    end
  end

将此用于 rake 任务：

execute :rake, 'some_rake_task'

【讨论】：

【解决方案6】：

就我而言，我将 config/deploy.rb 的 set :log_level, :info 更改为 set :log_level, :debug，这显示“找不到 GEMFILE”。这表明 bundle 使用错误的工作目录运行，所以我更改了

before "deploy:assets:precompile", "deploy:bundle_install"
desc "Bundle install for RVMs sake"
task :bundle_install do
  on roles(:app) do
    execute "/u0/jrepenni/.rvm/bin/rvm 2.1.0@akiary do /u0/jrepenni/.rvm/gems/ruby-2.1.0@global/bin/bundle install"
  end
end

到

before "deploy:assets:precompile", "deploy:bundle_install"
desc "Bundle install for RVMs sake"
task :bundle_install do
  on roles(:app) do
    execute "cd #{release_path} && /u0/jrepenni/.rvm/bin/rvm 2.1.0@akiary do /u0/jrepenni/.rvm/gems/ruby-2.1.0@global/bin/bundle install"
  end
end

（注意添加的“cd”）

【讨论】：

【解决方案7】：

该错误听起来像是在您的PATH 中找不到bundle。当您手动 SSH 时，它可能会在您的 ~/.profile 或 ~/.bash_profile 中运行某些内容，将其添加到您的路径中。

通过登录并运行which bundle 找到bundle 的路径。然后，尝试查找该路径是如何添加到您的 PATH 环境变量中的。如果你的 ~/.bash_profile, try moving it to~/.bashrc` 中有东西。

您也可以尝试Command Mapping 指定准确路径。

http://www.capistranorb.com/documentation/faq/why-does-something-work-in-my-ssh-session-but-not-in-capistrano/ 有更多故障排除提示

【讨论】：

【解决方案8】：

刚刚遇到同样的问题。对我有用的是：

1) 安装capistrano-rvm gem 并添加

require 'capistrano/rvm'

到Capfile。

2) 将我的部署用户添加到服务器上的rvm 组：

# usermod deploy -a -G rvm

3) 在我的部署用户的主文件夹中创建两个目录：.rvm 和 .rvm/bin

4) 将此行添加到我的deploy.rb 文件中：

set :default_env, { rvm_bin_path: '~/.rvm/bin' }

呸！这花了几个小时。

【讨论】：

找到问题的根源了吗？
不是真的（时间紧迫，不得不让它快速运行）。我怀疑这与 Capistrano 登录时未加载 rvm 设置有关（与常规 shell 登录相反，请参阅 here）。我开始研究它，但后来决定用 rvm 包装器走这条路，它奏效了。
它对我有用，只有一个更正：我必须更改以将 require 'capistrano/rvm' 更改为 require 'rvm/capistrano' 并且一切正常
啊！我的印象是 default_environment 被删除了！它只是被重命名。好的！谢谢。

【解决方案9】：

要调试它，请尝试删除 --quiet 标志：

set :bundle_flags, '--deployment'

您使用的是 rbenv、rvm 还是类似的东西？当bundle 运行时，Ruby 版本可能尚未设置。通过删除--quite 标志，您可能会获得一些调试信息。

【讨论】：

如您所见，该命令中没有--quiet 标志，因为我已经将其删除了。如果已经设置了 ruby，我使用 rvm 如何调试？