Add setting to load Inspec plugins for additional functionality

README.md

@@ -266,6 +266,15 @@ You can also define your inputs in external files. Adapt your `.kitchen.yml` to
         - test/integration/profile-attribute.yml
 ```
 
+### Use inspec plugins
+
+By default, the verifier does not load Inspec plugins such as additional input plugins. You can activate loading the same plugins as on normal Inspec invocations:
+
+```yaml
+    verifier:
+      load_plugins: true
+```
+
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

lib/kitchen/verifier/inspec.rb

@@ -26,6 +26,8 @@
 require "pathname"
 require "hashie"
 
+require "inspec/plugin/v2"
+
 module Kitchen
   module Verifier
     # InSpec verifier for Kitchen.
@@ -36,6 +38,7 @@ class Inspec < Kitchen::Verifier::Base # rubocop:disable Metrics/ClassLength
       plugin_version Kitchen::Verifier::INSPEC_VERSION
 
       default_config :inspec_tests, []
+      default_config :load_plugins, false
 
       # A lifecycle method that should be invoked when the object is about
       # ready to be used. A reference to an Instance is required as
@@ -80,6 +83,13 @@ def call(state)
         # initialize runner
         runner = ::Inspec::Runner.new(opts)
 
+        # load plugins
+        if config[:load_plugins]
+          v2_loader = ::Inspec::Plugin::V2::Loader.new
+          v2_loader.load_all
+          v2_loader.exit_on_load_error
+        end
+
         # add each profile to runner
         tests = collect_tests
         profile_ctx = nil