Failed to create machine on OpenStack

Hello,
I am trying to deploy nodes with rancher-2.1.7 (running as docker) and i got an error:
[node-controller] failed with: Error in driver during machine creation: Expected HTTP responce code [200] when accessing [GET https://10.10.10.2:8774/v2.1/asdascaeee.../os-keypairs/MYKEY], but got 404 instead