Feature: Group several manifest into one file

- group manifests from several CNFs into one
  common_manifests.yaml file
- add functionality in cleanup.cr to remove this file
- depends on PR in helm library:
  cnf-testsuite/helm#4

src/tasks/cleanup.cr

@@ -40,6 +40,12 @@ task "samples_cleanup" do  |_, args|
     )
     nil
   end
+  # Remove common_manifest.yaml file
+  common_manifest_path = "cnfs/common_manifest.yaml"
+  if File.exists?(common_manifest_path)
+    File.delete(common_manifest_path)
+    Log.info { "#{common_manifest_path} file deleted successfully." }
+  end
 end
 
 desc "Cleans up the CNF Test Suite helper tools and containers"

src/tasks/utils/cnf_manager.cr

@@ -882,6 +882,24 @@ module CNFManager
     #TODO call kubectl apply on file
     KubectlClient::Apply.file(configmap_path)
     # TODO when uninstalling, remove config map
+
+    #Generating manifest from installed CNF
+    generated_manifest = Helm.generate_manifest(release_name, deployment_namespace)
+    if generated_manifest.empty?
+      stdout_failure "The manifest was not generated."
+      exit 1
+    end
+    manifest_path = "cnfs/common_manifest.yaml"
+    if File.exists?(manifest_path)
+      File.open(manifest_path, "a") do |file|
+        file.puts generated_manifest
+      end
+    else
+      File.open(manifest_path, "w") do |file|
+        file.puts generated_manifest
+      end
+    end
+
   ensure
     #todo uninstall/reinstall clustertools because of tshark bug
   end