[NVIDIA_IMEX] Adding Kitchen test for Installation and Configuration

Author: Himani Anil Deshpande

cookbooks/aws-parallelcluster-platform/test/controls/nvidia_imex_spec.rb

@@ -0,0 +1,48 @@
+# Copyright:: 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License").
+# You may not use this file except in compliance with the License. A copy of the License is located at
+#
+# http://aws.amazon.com/apache2.0/
+#
+# or in the "LICENSE.txt" file accompanying this file.
+# This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, express or implied.
+# See the License for the specific language governing permissions and limitations under the License.
+
+control 'tag:install_expected_versions_of_nvidia_imex_installed' do
+  only_if { ['yes', true, 'true'].include?(node['cluster']['nvidia']['enabled']) }
+
+  describe package('nvidia-imex') do
+    it { should be_installed }
+    its('version') { should match /#{node['cluster']['nvidia']['driver_version']}/ }
+  end
+
+  %w(/usr/bin/nvidia-imex /usr/bin/nvidia-imex-ctl).each do |path|
+    describe file(path) do
+      it { should exist }
+      its('owner') { should eq 'root' }
+      its('group') { should eq 'root' }
+      its('mode') { should cmp '0755' }
+    end
+  end
+
+  nvidia_imex_dir = "#{node['cluster']['shared_dir']}/nvidia-imex"
+
+  %w("#{nvidia_imex_dir}/config.cfg" "#{nvidia_imex_dir}/nodes_config.cfg").each do |conf_files|
+    describe file(conf_files) do
+      it { should exist }
+      its('owner') { should eq 'root' }
+      its('group') { should eq 'root' }
+      its('mode') { should cmp '0755' }
+    end
+  end
+end
+
+control 'tag:config_nvidia_fabric_manager_enabled' do
+  only_if { instance.nvs_switch_enabled? }
+
+  describe service('nvidia-imex') do
+    it { should be_enabled }
+    it { should be_running }
+  end
+end