Upgrade Ovirt Cluster through Ansible

Add method to upgrade cluster using ovirt-ansible-cluster-upgrade role.

app/models/manageiq/providers/redhat/infra_manager/api_integration.rb

@@ -28,15 +28,8 @@ def use_graph_refresh?
       use_ovirt_sdk? && supported_api_versions.include?('4')
   end
 
-  def connect(options = {})
-    raise "no credentials defined" if missing_credentials?(options[:auth_type])
-    version = options[:version] || highest_allowed_api_version
-    unless options[:skip_supported_api_validation] || supports_the_api_version?(version)
-      raise "version #{version} of the api is not supported by the provider"
-    end
-
-    # Prepare the options to call the method that creates the actual connection:
-    connect_options = {
+  def apply_connection_options_defaults(options)
+    {
       :id         => id,
       :scheme     => options[:scheme] || 'https',
       :server     => options[:ip] || address,
@@ -48,7 +41,17 @@ def connect(options = {})
       :verify_ssl => default_endpoint.verify_ssl,
       :ca_certs   => default_endpoint.certificate_authority
     }
+  end
 
+  def connect(options = {})
+    raise "no credentials defined" if missing_credentials?(options[:auth_type])
+    version = options[:version] || highest_allowed_api_version
+    unless options[:skip_supported_api_validation] || supports_the_api_version?(version)
+      raise "version #{version} of the api is not supported by the provider"
+    end
+
+    # Prepare the options to call the method that creates the actual connection:
+    connect_options = apply_connection_options_defaults(options)
     # Starting with version 4 of oVirt authentication doesn't work when using directly the IP address, it requires
     # the fully qualified host name, so if we received an IP address we try to convert it into the corresponding
     # host name:

app/models/manageiq/providers/redhat/infra_manager/ems_cluster.rb

@@ -0,0 +1,29 @@
+class ManageIQ::Providers::Redhat::InfraManager::EmsCluster < ManageIQ::Providers::InfraManager::EmsCluster
+  def upgrade(options = {})
+    role_options = {:role_name => "oVirt.cluster-upgrade"}
+    job = ManageIQ::Providers::AnsibleRoleWorkflow.create_job({}, extra_vars_for_upgrade(options), role_options)
+    job.signal(:start)
+    job.miq_task
+  end
+
+  private
+
+  def extra_vars_for_upgrade(options = {})
+    connect_options = ext_management_system.apply_connection_options_defaults(options)
+
+    url = URI::Generic.build(
+      :scheme => connect_options[:scheme],
+      :host   => connect_options[:server],
+      :port   => connect_options[:port],
+      :path   => connect_options[:path]
+    ).to_s
+
+    {
+      :engine_url      => url,
+      :engine_user     => connect_options[:username],
+      :engine_password => connect_options[:password],
+      :cluster_name    => name,
+      :hostname        => "localhost"
+    }
+  end
+end