I think at the same time we add a mechanism to distinguish between
internal and external parameters, we need to add something to indicate
required v. optional.
With a nested stack, anything that's not part of the top-level parameter
contract is defaulted. The problem is that it loses information on what
is a valid default v. what's simply defaulted to pass validation.
I thought the nested validation spec was supposed to handle that though?
To me, required vs. optional should be as simple as "Does the parameter
definition have a 'default' key? If yes, then it's optional, if no,
then it's required for the user to pass a value via a parameter or
parameter_default". I realize we may not have been following that up to
now for various reasons, but it seems like Heat is already providing a
pretty explicit mechanism for marking params as required, so we ought to
use it.
Ya, I was mistaken here. Taking a look at the cinder-netapp.yaml, it
looks like we're using this correctly:
...
CinderNetappBackendName:
type: string
default: 'tripleo_netapp'
CinderNetappLogin:
type: string
CinderNetappPassword:
type: string
hidden: true
...
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