Puppet + puppet-rvm + bundler defaults to system Ruby, not RVM default

[ericqweinstein]

I'm running a CentOS 6.5 VM with Puppet + puppet-rvm. System Ruby is 1.8.7, but I'm using 1.9.3p545 (RVM default) via the module. On the Puppet master:

class project (
  # Hiera magicks
) {
  include rvm

  rvm_system_ruby {
    'ruby-1.9.3-p545':
      ensure      => present,
      default_use => true,
  } ->
  exec { 'load RVM as a function':
    user    => root,
    cwd     => '/usr/local/rvm',
    command => '/bin/sh -c "source scripts/rvm"',
  } ->
  exec { 'check Ruby version':
    user      => root,
    command   => '/bin/echo "$RUBY_VERSION"',
    logoutput => true,
  } ->
  exec { 'install Ruby dependencies':
    user      => root,
    path      => '/path/to/bundler',
    cwd       => '/my/ruby/project',
    command   => 'bundle install',
    logoutput => true,
  }
}

When I run puppet agent -t on the agent, I get the following error:

Notice: /Stage[main]/Project/Exec[load RVM as a function]/returns: executed successfully
Notice: /Stage[main]/Project/Exec[check Ruby version]/returns: ruby-1.9.3-p545
Notice: /Stage[main]/Project/Exec[check Ruby version]/returns: executed successfully
Notice: /Stage[main]/Project/Exec[install Ruby dependencies]/returns: Your Ruby version is 1.8.7, but your Gemfile specified 1.9.3
Error: bundle install returned 18 instead of one of [0]
Error: /Stage[main]/Project/Exec[install Ruby dependencies]/returns: change from notrun to 0 failed: bundle install returned 18 instead of one of [0]

I checked the Bundler source, and error code 18 is associated with the version mismatch. I haven't been able to figure out why Puppet reports using 1.9.3 via RVM, but then defaults to the system 1.8.7. Any ideas?

[carlossg]

because the commands in exec's are running in separate shells, you'd need to execute rvm ruby-1.9.3-p545 do bundle install

[ericqweinstein]

I thought it might have been running in a different shell. Works like a charm—thanks!