Hi,

I would like to understand heat usage in multi region configuration (on Juno release).

My assumptions:

• two Regions: Region1 and Region2
• one heat service in each Region
• one common keystone
• one common dashboard
• other services defined in both regions (e.g. neutron in region1 and second neutron in region2)
• one tenant (half of the resources in Region1 and half of the resources in Region2)
• instances from both regions can connect to each other using private network defined in the tenant
• heat will be triggered from instances defined in the tenant

Questions:

1. Are my assumptions correct?
2. Two heat services (one in each region), heat wll be triggered from instances so:

• is it possible to trigger heat service defined in region1 from the instance defined in region2? If yes how we can do that? How we can specify which heat should be used?