ruby-on-rails - bundle 安装不适用于 capistrano

Question

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 将 bundler 与 capistrano 集成。

我有非常简单的配置(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通过 ssh 运行，一切正常(所有 gems 安装成功)我该如何修复/调试它？

Answer 1

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。