Adds ability to power off nodes in clean

Now if an inventory file is provided to clean, those nodes will be
powered off.

JIRA: APEX-250

Change-Id: I2d78285717726c3d1c9d7d88c38e706d4617e337
Signed-off-by: Tim Rozet <trozet@redhat.com>

3 files changed, 48 insertions, 0 deletions

diff --git a/lib/python/apex/__init__.py b/lib/python/apex/__init__.py
index e1b8b547..9993dc97 100644
--- a/lib/python/apex/__init__.py
+++ b/lib/python/apex/__init__.py
@@ -11,3 +11,4 @@
 from .network_settings import NetworkSettings
 from .deploy_settings import DeploySettings
 from .network_environment import NetworkEnvironment
+from .clean import clean_nodes
diff --git a/lib/python/apex/clean.py b/lib/python/apex/clean.py
new file mode 100644
index 00000000..184b5ec9
--- /dev/null
+++ b/lib/python/apex/clean.py
@@ -0,0 +1,39 @@
+##############################################################################
+# Copyright (c) 2016 Tim Rozet (trozet@redhat.com) and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+# Clean will eventually be migrated to this file
+
+import logging
+import pyipmi
+import pyipmi.interfaces
+import sys
+
+from .common import utils
+
+
+def clean_nodes(inventory):
+    inv_dict = utils.parse_yaml(inventory)
+    if inv_dict is None or 'nodes' not in inv_dict:
+        logging.error("Inventory file is empty or missing nodes definition")
+        sys.exit(1)
+    for node, node_info in inv_dict['nodes'].items():
+        logging.info("Cleaning node: {}".format(node))
+        try:
+            interface = pyipmi.interfaces.create_interface(
+                'ipmitool', interface_type='lanplus')
+            connection = pyipmi.create_connection(interface)
+            connection.session.set_session_type_rmcp(node_info['ipmi_ip'])
+            connection.target = pyipmi.Target(0x20)
+            connection.session.set_auth_type_user(node_info['ipmi_user'],
+                                                  node_info['ipmi_pass'])
+            connection.session.establish()
+            connection.chassis_control_power_down()
+        except Exception as e:
+            logging.error("Failure while shutting down node {}".format(e))
+            sys.exit(1)
diff --git a/lib/python/apex/common/utils.py b/lib/python/apex/common/utils.py
index b7678a20..fe34096d 100644
--- a/lib/python/apex/common/utils.py
+++ b/lib/python/apex/common/utils.py
@@ -7,9 +7,17 @@
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
 
+import yaml
+
 
 def str2bool(var):
     if isinstance(var, bool):
         return var
     else:
         return var.lower() in ("true", "yes")
+
+
+def parse_yaml(yaml_file):
+    with open(yaml_file) as f:
+        parsed_dict = yaml.load(f)
+        return parsed_dict