def self.upgrade(cluster_name: , application_name: , force_variable_definition:,  file_name: )
    app_config = Transformations.transform_kubernetes(Orchparty::Kubernetes::DSLParser.new(file_name).parse, force_variable_definition: force_variable_definition).applications[application_name]
    app = KubernetesApplication.new(app_config: app_config, namespace: application_name, cluster_name: cluster_name, file_name: file_name)
    app.upgrade