Add config to skip power off after introspection

This adds configuration option 'processing.power_off'
defaulting to True, which will prevent powering off the
node after introspection

Change-Id: I16eb6b73fd57e84175bbce81c79e432ed8d1d3fa
Closes-Bug: #1488534

example.conf

@@ -803,6 +803,9 @@
 # {mac} - PXE booting MAC or "unknown". (string value)
 #ramdisk_logs_filename_format = {uuid}_{dt:%Y%m%d-%H%M%S.%f}.tar.gz
 
+# Whether to power off a node after introspection. (boolean value)
+#power_off = true
+
 
 [swift]
 

ironic_inspector/conf.py

@@ -137,6 +137,9 @@ PROCESSING_OPTS = [
                     '{bmc} - node BMC address or "unknown", '
                     '{dt} - current UTC date and time, '
                     '{mac} - PXE booting MAC or "unknown".'),
+    cfg.BoolOpt('power_off',
+                default=True,
+                help='Whether to power off a node after introspection.'),
 ]
 
 

ironic_inspector/process.py

@@ -281,7 +281,8 @@ def _process_node(node, introspection_data, node_info):
         resp['ipmi_username'] = new_username
         resp['ipmi_password'] = new_password
     else:
-        utils.executor().submit(_finish, ironic, node_info, introspection_data)
+        utils.executor().submit(_finish, ironic, node_info, introspection_data,
+                                power_off=CONF.processing.power_off)
 
     return resp
 

ironic_inspector/test/unit/test_process.py

@@ -478,6 +478,14 @@ class TestProcessNode(BaseTest):
         self.assertTrue(self.cli.node.set_power_state.called)
         finished_mock.assert_called_once_with(self.node_info)
 
+    @mock.patch.object(node_cache.NodeInfo, 'finished', autospec=True)
+    def test_no_power_off(self, finished_mock):
+        CONF.set_override('power_off', False, 'processing')
+        process._process_node(self.node, self.data, self.node_info)
+
+        self.assertFalse(self.cli.node.set_power_state.called)
+        finished_mock.assert_called_once_with(self.node_info)
+
     @mock.patch.object(process.swift, 'SwiftAPI', autospec=True)
     def test_store_data(self, swift_mock):
         CONF.set_override('store_data', 'swift', 'processing')

releasenotes/notes/add-support-for-long-running-ramdisk-ffee3c177c56cebb.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - Add configuration option `processing.power_off` defaulting to True,
+    which allows to leave nodes powered on after introspection.