The thought process was that if I set one value, say, the service enablement parameter for snmp to 'stopped' in my tripwire module, that value could conflict with the service parameter of the snmp module.. Which references a completely unrelated hiera parameter
I thought about just using the same value for both, but that could be confusing for sharing modules, as the pseudo-scope of hiera parameters ie:
Would no longer be the rule, which, while I suppose there is no rule, (is there?) this made the most sense to me, so I ran with it.
I thought, sleepily: if there was some way for me to say there could be a conflict which could be clearly stated in the hiera values, I think it might make for easier module sharing/blending
'if this other parameter (bacon_crispness) exists and has the value of [ crispy,burnt,raw ] that conflicts with me (breakfast_enjoyment) if the value is true.'
This could be furthered to override a stated value via a relationship :
Breakfast_enjoyment: true <~ unless (bacon_crispness) is [ crispy,burnt,raw ]
Or to confine another parameter's values:
Breakfast_enjoyment: true ~> bacon_crispness: [ undef,chewy,thick,absent ]
Is there any merit to this idea?
In speaking with people who have tastyzombiebrains™ there was a concern that this breaks the 'data only' model of hiera.. so perhaps the dependency logic should live in the hiera function in puppet? or not at all… dunno..
Maybe I should have just gone back to bed?
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