Hello!
Can please anybody tell me, if all resources which are created
within a Heat stack belong to the stack in the way that
all the resources are freed / deleted when the stack is deleted?
IMHO all resources which are created during the initial creation or
update of a stack, even if they are ephemeral or only internal
created, must be deleted when the stack is deleted by OpenStack Heat
itself. Correct?
My question might see obvious, but I did not find an explicit hint in
the documentation stating this.
The reason for my question: I have a Heat template which uses two
images to create a server (using block_device_mapping_v2). Every time
I run an 'openstack stack create' and 'openstack stack delete' cycle
one ephemeral volume is left over / gets not deleted.
I think it's due toe delete_on_termination[1] property of bdmv2 which is interpreted as 'False', if not specified. You can set it to 'True' to delete the volumes along with server. I've not checked if it's different from how nova api behaves though.
For me this sounds like a problem in OpenStack (Heat).
(It looks that this is at least similar to
https://review.opendev.org/#/c/341008/
which never made it into master.)
Kind regards
Andre