Sensu Plugins Process Count Metrics

This is a Sensu Plug-in to interface with pgrep and count the number of processes with a given name as metrics.

Supply -f to use -f in pgrep.

This plug-in will ignore itself in the process list.

Tested on Ruby 2.3.

The unit tests are a bit dubious as they run the Ruby file externally as it's almost impossible to run unit tests on a Sensu plug-in because they run as soon as scoped... The tests must be run from the project root directory.

bundle exec rspec should run the test, after bundle installing of course.