使用Ansible安装Bundler gem

Question

我正在尝试使用Ansible在我的VPS上安装Bundler.

我已经设置了rbenv,全局ruby是2.1.0.

如果我以root身份SSH到服务器并运行gem install bundler,它将完美安装.

我已经尝试了以下三种使用Ansible来安装Bundler gem的方法,并且这三种方法都没有产生任何错误,但是当我在SSH中运行时gem list,Bundler无处可见.

尝试1:

---
- name: Install Bundler
  shell: gem install bundler

尝试2:

---
- name: Install Bundler
  shell: gem install bundler

尝试3:

---
- name: Install Bundler
  gem: name=bundler
       state=latest

我也尝试了最后的尝试,user_install=yes也user_install=no没有做任何改变.

有什么想法我怎么能通过Ansible正确安装Bundler？

我已经在这方面工作了一段时间,我安装了1个ruby版本:2.1.0和ahve发现rbenv的shims目录不包含垫片bundle.

应该有垫片bundle吗？我只是感到困惑,为什么capistrano无法找到bundle命令,因为它在我运行sudo gem list时列出但不是在我跑的时候gem list？

root@weepingangel:/usr/local/rbenv/shims# echo $PATH
/usr/local/rbenv/shims:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
root@weepingangel:/usr/local/rbenv/shims# gem environment
RubyGems Environment:
  - RUBYGEMS VERSION: 2.2.0
  - RUBY VERSION: 2.1.0 (2013-12-25 patchlevel 0) [x86_64-linux]
  - INSTALLATION DIRECTORY: /usr/local/rbenv/versions/2.1.0/lib/ruby/gems/2.1.0
  - RUBY EXECUTABLE: /usr/local/rbenv/versions/2.1.0/bin/ruby
  - EXECUTABLE DIRECTORY: /usr/local/rbenv/versions/2.1.0/bin
  - SPEC CACHE DIRECTORY: /root/.gem/specs
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /usr/local/rbenv/versions/2.1.0/lib/ruby/gems/2.1.0
     - /root/.gem/ruby/2.1.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
     - :sources => ["http://gems.rubyforge.org", "http://gems.github.com"]
     - "gem" => "--no-ri --no-rdoc"
  - REMOTE SOURCES:
     - http://gems.rubyforge.org
     - http://gems.github.com
  - SHELL PATH:
     - /usr/local/rbenv/versions/2.1.0/bin
     - /usr/local/rbenv/libexec
     - /usr/local/rbenv/shims
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/sbin
     - /usr/bin
     - /sbin
     - /bin
     - /usr/games

有任何想法吗？

所以,我认为我有两个主要问题:

1. 为什么捆绑器只在我运行时可见sudo gem list？

2. 我的部署说:

   INFO [18d5838c] Running /usr/bin/env bundle install --binstubs  
   /var/rails_apps/neiltonge/shared/bin --path  
   /var/rails_apps/neiltonge/shared/bundle --without development test
   --deployment --quiet on 188.226.159.96 DEBUG [18d5838c] Command: cd /var/rails_apps/neiltonge/releases/20140301205432 && ( PATH=$PATH
   /usr/bin/env bundle install --binstubs
   /var/rails_apps/neiltonge/shared/bin --path
   /var/rails_apps/neiltonge/shared/bundle --without development test
   --deployment --quiet ) DEBUG [18d5838c]     /usr/bin/env: bundle: No such file or directory
   

   这是我的$PATH:

   /usr/local/rbenv/shims:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
   

为什么不能捆绑？

Answer 1

问题是,当gem install bundler通过ansible 运行时,你没有正确初始化rbenv,因为rbenv init运行在.bashrc或.bash_profile.所以使用的gem命令是系统命令,而不是作为rbenv垫片安装的命令.因此,无论何时安装gem,它都是在系统范围内安装的,而不是在rbenv环境中安装的.

要正确初始化rbenv,您必须执行bash本身并明确声明它是一个登录shell,因此它会读取它的初始化文件:

ansible your_host -m command -a 'bash -lc "gem install bundler"' -u your_rbenv_user 

-u your_rbenv_user如果您真的想以root身份执行此操作,请保留该部分.

如果以上命令有效,您可以轻松将其转换为playbook动作:

- name: Install Bundler
  become_user: your_rbenv_user
  command: bash -lc "gem install bundler"

它很麻烦,但这是我到目前为止找到的唯一方法.

Answer 2

由于Ansible 1.3遵循原生解决方案是可能的:

- name: requirements for installing gems
  apt:
    name: {{ item }}
  with_items:
    - ruby
    - ruby-dev
    - make

- name: install gem with proper $PATH
  gem:
    name: xyz
    user_install: no

提到user_install参数!此外,捆绑程序安装的某些依赖项可能需要遵循进一步的程序包依赖性:

• 的zlib1g-dev的