[openstack-dev] [Heat] get_reality implementation: default values, specified in config files
therve at redhat.com
Thu Dec 3 12:37:53 UTC 2015
On Thu, Dec 3, 2015 at 1:00 PM, Peter Razumovsky <prazumovsky at mirantis.com>
> During get_reality implementation next problem raised: if I don't specify
> optional not update allowed property (like availabiliy_zone in
> OS::Cinder::Volume), default value will be set for this property in entity.
> This default value defined in configuration of entity's project (i.e. if I
> create OS::Cinder::Volume without az, volume will be created with az =
> default value, which defined in cinder.conf).
> So, if I want to get live state of entity, I get az with value, but in
> template no value has been specified for az, and that's mean, stack will be
> repalced during update, which is awful (e.g. if we have huge stack with
> this problem for each resource, updating will be very slow).
> What I can do with such properties with default values, defined in config
> options? I don't know any methods to get value from config of other project.
I haven't thought too much about it, but I'm sure getting config from other
projects is not the right idea :). One possible solution would be to get
the live state of the entity just after creation, so that we can fill those
default properties right away. What do you think?
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