...

ntnuopenstack::nova::endpoint::internal::id: '<NOVA INTERNAL ENDPOINT ID>'
ntnuopenstack::nova::keystone::limits: true

Heat

The rolling upgrade procedure for heat includes a step where you are supposed to create a new rabbit vhost. I don't want that. Therefore, this is the cold upgrade steps.

1. Set heat::api::enabled: false and heat::engine::enabled: false and heat::api_cfn::enabled: false in hiera to stop all services
2. Do one of:
   1. Run puppet with yoga modules/tags, Run apt-get update && apt-get dist-upgrade && apt-get autoremove
   2. Reinstall the nodes with yoga modules/tags
3. Run heat-manage db_sync on one of the api-nodes.

4. Remove the hiera keys that disabled the services and re-run puppet

Compute-nodes

When all APIs etc. are upgraded, it is time to do the same on the compute-nodes. Compute nodes are simple to upgrade:

...