Heats webhook respond 'incomplete-signature'-error (not conform to AWS standards)
Hi there,
as I wanted to check out the autoscaling features of heat in combination with ceilometer, I tried to adapt one of the example HOT's.
Meanwhile, the HOT is starting successfully, but whatever I do to stress my VM in the web_server_group, no scaling reaction is observable.
Executing the webhook manually, there's an error response, which google hardly knows, so I try my best here - maybe you can help me to solve this problem.
Additionally I'm wondering, why AWS is mentioned in the error - actually I don't want to use it. Are webhooks only possible via AWS?
Core Issue:
curl -XPOST -i http://xxx.xxx.xxx.xxx:8000/v1/signal/arn%3Aopenstack%3Aheat%3A%3A9036a06bb9f648beb8b4d4592e693735%3Astacks%2FTestStack%2F3d0054f4-401a-4578-b9fd-4b6374bc69b2%2Fresources%2Fweb_server_scaleup_policy?Timestamp=2014-11-06T02%3A47%3A19Z&SignatureMethod=HmacSHA256&AWSAccessKeyId=e4f6cefc18a34695b1aba1bd5e0bbb0a&SignatureVersion=2&Signature=dOjsDdfO37Ym0%2F3t5A1qzxNmrjfYHdohJZ%2FQ3HBJafU%3D
[1] 7073
[2] 7074
[3] 7075
[4] 7076
root@foo:/home/bar# HTTP/1.1 400 IncompleteSignature
Content-Type: application/xml; charset=UTF-8
Content-Length: 171
Date: Thu, 06 Nov 2014 03:11:55 GMT
<ErrorResponse><Error><Message>The request signature does not conform to AWS standards</Message><Code>IncompleteSignature</Code><Type>Sender</Type></Error></ErrorResponse>
Another try:
curl -X POST http://xxx.xxx.xxx.xxx:8000/v1/signal/arn%3Aopenstack%3Aheat%3A%3A9036a06bb9f648beb8b4d4592e693735%3Astacks%2FTestStack%2F3d0054f4-401a-4578-b9fd-4b6374bc69b2%2Fresources%2Fweb_server_scaleup_policy?Timestamp=2014-11-06T02%3A47%3A19Z
[3] Done SignatureMethod=HmacSHA256
[4] Done AWSAccessKeyId=e4f6cefc18a34695b1aba1bd5e0bbb0a
[5] Done SignatureVersion=2
user@vm-foo:~$ <ErrorResponse><Error><Message>The request signature does not conform to AWS standards</Message><Code>IncompleteSignature</Code><Type>Sender</Type></Error></ErrorResponse>
Further specs:
Version OpenStack Icehouse
VM: Ubuntu 14.04
stress command: 'stress --cpu 8 --io 8 --vm 2 --vm-bytes 256M &' causing permanent usage of ~60% CPU usage.
On the host, heat-api-cfn is running, and port 8000 is in use.
