In our case the vm's get the ssh key from the metedata service, usually worth to check the nova-api logs for meta-data requests.
I wonder would be useful to log the vm's "serial" console output on every ssh connection failure, in order to see more information about meta-data requests and dhcp in the vm's view point.
In our case the vm's get the ssh key from the metedata service, usually worth to check the nova-api logs for meta-data requests.
I wonder would be useful to log the vm's "serial" console output on every ssh connection failure, in order to see more information about meta-data requests and dhcp in the vm's view point.