Nginx/Passenger runs a Rails app owned by another user. How do i prevent doing "bundle install" for both users?

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Environment

I used passenger-install-nginx-module to install Nginx/Passenger for user nginxer.

I uploaded a Rails project and owned it to user projecter.

Then i followed the RVM integration with Passenger manual and created the .rvmrc file, editing the paths so that they point to projecter's .rvm. I also created the config/setup_load_paths.rb file and uncommented the two lines for Bundler 1.x.

I did bunlde install from user projecter and successfully performed migrations.

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Problem

But the project wouldn't start unless i do bundle install from the nginxer user:

no such file to load -- bundler/setup

Backtrace:
/home/nginxer/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb

I thought that Nginx/Passenger should run the app with the user who owns the project.

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Some environment info

Here's an rvm gemset list run by nginxer in the project folder:

$ rvm gemset list

gemsets for ruby-1.9.2-p290 (found in /home/redminer/.rvm/gems/ruby-1.9.2-p290)
   global
=> redmine

Here's an rvm info run by nginxer in the project folder:

$ rvm info

ruby-1.9.2-p290@redmine:

  system:
    uname:       "Linux li308-242 3.0.4-linode37 #1 SMP Mon Sep 12 12:00:58 EDT 2011 i686 GNU/Linux"
    bash:        "/bin/bash => GNU bash, version 4.1.5(1)-release (i486-pc-linux-gnu)"
    zsh:         " => not installed"

  rvm:
    version:      "rvm 1.8.3 by Wayne E. Seguin (wayneeseguin@gmail.com) [https://rvm.beginrescueend.com/]"

  ruby:
    interpreter:  "ruby"
    version:      "1.9.2p290"
    date:         "2011-07-09"
    platform:     "i686-linux"
    patchlevel:   "2011-07-09 revision 32553"
    full_version: "ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]"

  homes:
    gem:          "/home/projecter/.rvm/gems/ruby-1.9.2-p290@redmine"
    ruby:         "/home/projecter/.rvm/rubies/ruby-1.9.2-p290"

  binaries:
    ruby:         "/home/projecter/.rvm/rubies/ruby-1.9.2-p290/bin/ruby"
    irb:          "/home/projecter/.rvm/rubies/ruby-1.9.2-p290/bin/irb"
    gem:          "/home/projecter/.rvm/rubies/ruby-1.9.2-p290/bin/gem"
    rake:         "/home/projecter/.rvm/gems/ruby-1.9.2-p290@redmine/bin/rake"

  environment:
    PATH:         "/home/projecter/.rvm/gems/ruby-1.9.2-p290@redmine/bin:/home/projecter/.rvm/gems/ruby-1.9.2-p290@global/bin:/home/projecter/.rvm/rubies/ruby-1.9.2-p290/bin:/home/projecter/.rvm/bin:/home/projecter/.rvm/gems/ruby-1.9.2-p290/bin:/home/nginxer/.rvm/gems/ruby-1.9.2-p290/bin:/home/nginxer/.rvm/gems/ruby-1.9.2-p290@global/bin:/home/nginxer/.rvm/rubies/ruby-1.9.2-p290/bin:/home/nginxer/.rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
    GEM_HOME:     "/home/projecter/.rvm/gems/ruby-1.9.2-p290@redmine"
    GEM_PATH:     "/home/projecter/.rvm/gems/ruby-1.9.2-p290@redmine:/home/projecter/.rvm/gems/ruby-1.9.2-p290@global"
    MY_RUBY_HOME: "/home/projecter/.rvm/rubies/ruby-1.9开发者_如何学Python.2-p290"
    IRBRC:        "/home/projecter/.rvm/rubies/ruby-1.9.2-p290/.irbrc"
    RUBYOPT:      ""
    gemset:       "redmine"

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So the question is…

Is it normal that i have to do "bundle install" both for nginxer and for projecter?

If not, how do i make Nginx/Passenger use projecter's gemset?

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You can specify which user the passenger server runs as, are you doing that?

http://modrails.com/documentation/Users%20guide%20Nginx.html#_passenger_user_lt_username_gt