When reporting that agent is busy, report the executed command

Also make this API return a proper HTTP code (409 instead of 500).

Change-Id: I5d86878b5ed6142ed2630adee78c0867c49b663f

1 files changed, 9 insertions, 0 deletions

diff --git a/ironic_python_agent/errors.py b/ironic_python_agent/errors.py
index bf0253dd..0f7a185c 100644
--- a/ironic_python_agent/errors.py
+++ b/ironic_python_agent/errors.py
@@ -91,6 +91,15 @@ class RequestedObjectNotFoundError(NotFound):
         super(RequestedObjectNotFoundError, self).__init__(details)
 
 
+class AgentIsBusy(CommandExecutionError):
+
+    message = 'Agent is busy'
+    status_code = 409
+
+    def __init__(self, command_name):
+        super().__init__('executing command %s' % command_name)
+
+
 class IronicAPIError(RESTError):
     """Error raised when a call to the agent API fails."""