Open Stack

Hi,

Can the keystone token, obtained from keystone API v2.0, be used in the openstack service/endpoint which are configured to use keystone API v3?

There is an OpenStack cluster, where most of services(such as Heat, Nova, Ceilometer) are configured to use keystone API v2.0 but one of the services are using keystone API v3. Now I want to launch a heat template (The Heat service are using ks API v2.0) to access the service using keystone API v3.
Error occurs and it says the token is not correct.
So in this case, is there any way to let heat-engine to handle this conversion or I have to change the configuration to let all services in a OpenStack cluster are using only one version of keystone API (say v2.0)?

Thanks in advance,
Gary
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