RVM conflicts with sensu-install

[tibers]

The scenario is that if rvm installs ruby first, sensu-install -p sensu-plugins-elasticsearch will install the gems into the systemwide ruby folder and sensu can no longer find the gems. If I install sensu first, sensu-install does The Right Thing and installs them in the embedded ruby path. I can't just go ripping rvm and ruby out of prod however. :)

/etc/default/sensu has embedded ruby set to true.

Talked a bit with @majormoses - installing rvm and then trying to use sensu-install throws problems:

[root@esdata03 centos]# /opt/sensu/embedded/bin/sensu-install -p elasticsearch
/opt/sensu/embedded/lib/ruby/site_ruby/2.4.0/rubygems.rb:270:in `find_spec_for_exe': can't find gem sensu (>= 0.a) (Gem::GemNotFoundException)
	from /opt/sensu/embedded/lib/ruby/site_ruby/2.4.0/rubygems.rb:298:in `activate_bin_path'
	from /opt/sensu/embedded/bin/sensu-install:22:in `<main>'

However we can work around this by calling the embedded gem installer directly:

/opt/sensu/embedded/bin/gem install sensu-plugins-elasticsearch

I propose changing the sensu_gem provider (which is way above my head) to invoke the embedded gem install directly.

Platform and version information

• Your OS: centos 7
• Your Ruby version: 2.4.0 (2.4.1 embedded with sensu)
• Your version of Puppet: 5.3.3
• Your version of Sensu: sensu-1.2.0-1.el7.x86_64
• Your version of this module: 2.50.0

Anything else to add that you think will be helpful?

Beer. So much beer.

[tibers]

It looks very similar to this issue, I'll try to bang out a PR since I think I have an idea.