Ruby on Rails 服务器设置答案

【问题标题】：Ruby on Rails server setupRuby on Rails 服务器设置
【发布时间】：2020-06-04 06:31:33
【问题描述】：

我正在尝试将 ROR 应用程序部署到 Ubuntu 服务器（EC2）。我正在使用以下版本：

红宝石：2.4.0p0
导轨：4.2.8
捆绑器：1.17.3

*出于某种原因，我的同事创建了一个 gemset 而不是正常的设置。

gem 环境是：

RubyGems Environment:
  - RUBYGEMS VERSION: 2.6.8
  - RUBY VERSION: 2.4.0 (2016-12-24 patchlevel 0) [x86_64-linux]
  - INSTALLATION DIRECTORY: /home/ubuntu/.rvm/gems/ruby-2.4.0@myrepo
  - USER INSTALLATION DIRECTORY: /home/ubuntu/.gem/ruby/2.4.0
  - RUBY EXECUTABLE: /home/ubuntu/.rvm/rubies/ruby-2.4.0/bin/ruby
  - EXECUTABLE DIRECTORY: /home/ubuntu/.rvm/gems/ruby-2.4.0@myrepo/bin
  - SPEC CACHE DIRECTORY: /home/ubuntu/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /home/ubuntu/.rvm/gems/ruby-2.4.0@myrepo
     - /home/ubuntu/.rvm/gems/ruby-2.4.0@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /home/ubuntu/.rvm/gems/ruby-2.4.0@myrepo/bin
     - /home/ubuntu/.rvm/gems/ruby-2.4.0@global/bin
     - /home/ubuntu/.rvm/rubies/ruby-2.4.0/bin
     - /home/ubuntu/.rvm/bin
     - /home/ubuntu/bin
     - /home/ubuntu/.local/bin
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/sbin
     - /usr/bin
     - /sbin
     - /bin
     - /usr/games
     - /usr/local/games
     - /snap/bin

我做了 nginx 和乘客的设置，并设置了根路径。

nginx版本：nginx/1.17.3
Phusion 乘客：6.0.4

我相信 nginx 和乘客的设置没有问题，但我收到以下错误： Phusion Passenger 应用程序服务器尝试启动 Web 应用程序。但是应用程序本身（而不是Passenger）遇到了内部错误。

错误详情：

cannot load such file -- bundler/setup (LoadError)
  /home/ubuntu/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
  /home/ubuntu/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
  /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:363:in `activate_gem'
  /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:221:in `block in run_load_path_setup_code'
  /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:527:in `running_bundler'
  /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:220:in `run_load_path_setup_code'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:91:in `preload_app'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:189:in `block in <module:App>'
  /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:380:in `run_block_and_record_step_progress'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:188:in `<module:App>'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:30:in `<module:PhusionPassenger>'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:29:in `<main>'

到目前为止子进程的stdout/stderr输出是：

 [passenger_native_support.so] trying to compile for the current user (nobody) and Ruby interpreter...
     (set PASSENGER_COMPILE_NATIVE_SUPPORT_BINARY=0 to disable)
     Warning: compilation didn't succeed. To learn why, read this file:
     /tmp/passenger_native_support-18gfm98.log
 [passenger_native_support.so] finding downloads for the current Ruby interpreter...
     (set PASSENGER_DOWNLOAD_NATIVE_SUPPORT_BINARY=0 to disable)
     Could not download https://github.com/phusion/passenger/releases/download/release-6.0.4/rubyext-ruby-2.4.0-x86_64-linux.tar.gz: The requested URL returned error: 404 Not Found
     Trying next mirror...
     Could not download https://oss-binaries.phusionpassenger.com/binaries/passenger/by_release/6.0.4/rubyext-ruby-2.4.0-x86_64-linux.tar.gz: The requested URL returned error: 404 Not Found
     Trying next mirror...
     Could not download https://s3.amazonaws.com/phusion-passenger/binaries/passenger/by_release/6.0.4/rubyext-ruby-2.4.0-x86_64-linux.tar.gz: The requested URL returned error: 403 Forbidden
 [passenger_native_support.so] will not be used (can't compile or download) 
  --> Passenger will still operate normally.
Error: The application encountered the following error: cannot load such file -- bundler/setup (LoadError)
    /home/ubuntu/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    /home/ubuntu/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:363:in `activate_gem'
    /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:221:in `block in run_load_path_setup_code'
    /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:527:in `running_bundler'
    /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:220:in `run_load_path_setup_code'
    /usr/share/passenger/helper-scripts/rack-preloader.rb:91:in `preload_app'
    /usr/share/passenger/helper-scripts/rack-preloader.rb:189:in `block in <module:App>'
    /usr/lib/ruby/vendor_ruby/phusion_passenger/loader_shared_helpers.rb:380:in `run_block_and_record_step_progress'
    /usr/share/passenger/helper-scripts/rack-preloader.rb:188:in `<module:App>'
    /usr/share/passenger/helper-scripts/rack-preloader.rb:30:in `<module:PhusionPassenger>'
    /usr/share/passenger/helper-scripts/rack-preloader.rb:29:in `<main>'

有人知道吗？

【问题讨论】：

如果你运行bundler -v，输出是什么。可能的答案在这里？ stackoverflow.com/questions/19061774/…
@RockwellRice Bundler 1.17.3 版
@RockwellRice 抱歉，我使用的是 nginx，它不像 apache 那样管理后端进程，因此无法设置环境路径。

标签： ruby-on-rails ruby passenger

【解决方案1】：

乘客正在尝试下载不存在的文件。

尝试使用 ruby 2.4.6，因为该版本已列在 github 发布页面上

https://github.com/phusion/passenger/releases/

【讨论】：

【解决方案2】：

最有可能的关键在于您在ubuntu 用户下设置和测试 rvm/ruby，但是 nginx 服务器在其他用户下运行（至少在没有配置 rvm 的会话中）守护进程运行）

RVM 能够创建一个包装器，它将设置正确的路径和 gemset（如果需要）：

rvm alias create ruby_for_my_app ruby-2.4.0@myrepo

然后在passenger_ruby nginx config 指令中使用/home/ubuntu/.rvm/wrappers/ruby_for_my_app/ruby（记得更改后重新加载）

【讨论】：

为什么我必须创建一个 gemset？我还没有安装任何其他版本的 ruby、rails 或 bundler。
@VishwasTrivedi gemset 不是必需的，以防万一