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'replace' should become a metaparameter to allow only managing unset parameters
|Affected Puppet version:||0.25.5||Branch:|
|Keywords:||defaults resource type parameter password user file content default attribute audit report|
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Overview: Puppet should facilitate the ability to manage arbitrary resource parameters only if those parameters are in an initial or “unset” state. By initial or unset, I mean their default state.
Detailed Information: There are a number of use cases for this feature. The most common I’ve seen is the ability to manage the password of an user resource only if the password is unset.
Another, which puppet already supports is the ability to manage the contents of a file only if the contents of the file are blank.
Related to the mount resource, puppet should manage the filesystem type field as “auto” only if the filesystem type field is blank.
Expected Behavior: Ideally, this functionality would be a first-class citizen on all resource type parameters, rather than specific to only certain resources like user, file contents, and user passwords.
Additional information: The architecture and design of puppet is to manage state over time, which this feature may be in direct conflict with. However, with auditing and reporting features being introduced into the architecture, the philosophy should still persevere as certain resource parameters could be flagged as “manage once, audit and report forever.” This feature will increase flexibility and provide granularity to the parameter level rather than the resource level.
#2 Updated by Luke Kanies about 4 years ago
- Subject changed from Resource parameters should allow the user to manage them only if they're "absent" to 'replace' should become a metaparameter to allow only managing unset parameters
- Status changed from Needs Decision to Accepted
- Assignee deleted (
This seems like a generalization of the ‘replace’ parameter on files – basically, you’re saying you want to be able to set but never replace arbitrary parameters on arbitrary resources.