Switch from RVM to rbenv passenger preload/bundle errors on app start RubyVersionMismatch

Question

It looks like the Phusion Passenger preloader or bundler is calling the system version of kernel_require.rb rather than the rbenv version of kernel_require.rb and bundler complains about RubyVersionMismatch when I startup my Rails 4.1 application. This is my local dev box but I also have a "local" environment for deployment using Apache 2.2.27 (macports).

I completely removed RVM per the instructions, installed rbenv per the instructions then installed Ruby 2.1.2, Rails 4.1.5, Passenger, and did passenger-install-apache2-module. All these were done in my deploy account then I created a blank testing application. When the application starts up the Apache error log reports Bundler::RubyVersionMismatch.

Note that the application seems to work just fine.

log lines referencing rbenv ruby:

log:1 /path/to/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.7.2/lib/bundler/definition.rb:385:in `validate_ruby!': Your Ruby version is 2.0.0, but your Gemfile specified 2.1.2 (Bundler::RubyVersionMismatch)
log:2 /path/to/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.7.2/lib/bundler.rb:117:in `setup'
log:3 /path/to/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.7.2/lib/bundler/setup.rb:17:in `<top (required)>'

log lines referencing mac system ruby:

log:4 /System/Library/Frameworks/Ruby.framework/Versions/2.0/.../ruby/2.0.0/rubygems/.../kernel_require.rb:55:in `require'
log:5 /System/Library/Frameworks/Ruby.framework/Versions/2.0/.../ruby/2.0.0/rubygems/.../kernel_require.rb:55 in `require'
log:6 Pool2/SmartSpawner.h:298: Preloader for /path/to/my/deploy/rails/testing/current started on PID 33863

Environment:

OSX 10.9.4
Apache 2.2.27 installed via macports to /opt/local/apache2 etc
rbenv local 2.1.2  
rbenv global 2.1.2
rbenv which ruby /path/to/.rbenv/versions/2.1.2/bin/ruby
rbenv whence passenger 2.1.2
rails -v 4.1.5
bundler version 1.7.2
using mina v0.3.0, mina-rsync for deploy

Passenger config for apache:

LoadModule passenger_module /path/to/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.50/buildout/apache2/mod_passenger.so
PassengerRoot /path/to/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.50
PassengerDefaultRuby /path/to/.rbenv/versions/2.1.2/bin/ruby

Answer 1

I did not set rbenv local or global in the deploy account.

• fix and clean: probably overkill

• removed rbenv from deploy account:

  rm -rf ~/.rbenv
  

• removed rbenv setup from .bash_profile

• install rbenv per instructions:

  git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
  echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
  $ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
  

• logout/login

• add rbenv setup to .bash_profile

• install rbenv-build:

  git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
  

• install Ruby 2.1.2 and Bundler:

  rbenv install 2.1.2 
  gem install bundler
  

• set rbenv global:

  rbenv global 2.1.2
  gem install passenger 
  passenger-install-apache2-module
  

• copy suggested passenger config to my local /path/do/apache2/conf.d/passenger.conf

• sudo apachectl restart

• remove testing app from local staging server:

  rm -rf /path/to/my/deploy/testing/*
  

Returning back to the development account:

• recreate testing app

  rails new .... testing
  

• cd testing

  rake db:create  
  rake db:migrate
  git init
  git add .
  git commit -am 'initial'
  git push origin master
  
  mina -v setup server=local
  mina -v deploy server=local
  

• tail -f /path/to/apache2/logs/error_log

I hit my app on my local server and RubyVersionMismatch is no longer in the error log, and the application starts normally.