Support standalone ironic

Add two options in this patch to support standalone ironic without
keystone services.

*auth_strategy
*ironic_url

Change-Id: Iffa50a40971264aacc97f7210aa227a6655eaf42
Closes-bug: 1459471

example.conf

@@ -113,6 +113,15 @@
 # Deprecated group/name - [discoverd]/ironic_retry_period
 #ironic_retry_period = 5
 
+# Method to use for authentication: noauth or keystone. (string value)
+# Allowed values: keystone, noauth
+#auth_strategy = keystone
+
+# Ironic API URL, used to set Ironic API URL when auth_strategy option
+# is noauth to work with standalone Ironic without keystone. (string
+# value)
+#ironic_url = http://localhost:6385/
+
 
 [processing]
 

ironic_inspector/conf.py

@@ -50,6 +50,15 @@ IRONIC_OPTS = [
                help='Amount of time between attempts to connect to Ironic '
                     'on start up.',
                deprecated_group='discoverd'),
+    cfg.StrOpt('auth_strategy',
+               default='keystone',
+               choices=('keystone', 'noauth'),
+               help='Method to use for authentication: noauth or keystone.'),
+    cfg.StrOpt('ironic_url',
+               default='http://localhost:6385/',
+               help='Ironic API URL, used to set Ironic API URL when '
+                    'auth_strategy option is noauth to work with standalone '
+                    'Ironic without keystone.'),
 ]
 
 

ironic_inspector/utils.py

@@ -46,10 +46,15 @@ class Error(Exception):
 
 def get_client():  # pragma: no cover
     """Get Ironic client instance."""
-    args = dict({'os_password': CONF.ironic.os_password,
-                 'os_username': CONF.ironic.os_username,
-                 'os_auth_url': CONF.ironic.os_auth_url,
-                 'os_tenant_name': CONF.ironic.os_tenant_name})
+    # NOTE: To support standalone ironic without keystone
+    if CONF.ironic.auth_strategy == 'noauth':
+        args = dict({'os_auth_token': 'noauth',
+                     'ironic_url': CONF.ironic.ironic_url})
+    else:
+        args = dict({'os_password': CONF.ironic.os_password,
+                     'os_username': CONF.ironic.os_username,
+                     'os_auth_url': CONF.ironic.os_auth_url,
+                     'os_tenant_name': CONF.ironic.os_tenant_name})
     return client.get_client(1, **args)