Allow prefixes to be assigned to a site group, region, site, or location

[lucasalvatore]

NetBox version

v2.11.3

Feature type

New functionality

Proposed functionality

Allow prefixes to be assigned to a site-group and not a specific site

Use case

Lets say we have a site-group called "Singapore" which contains multiple sites e.g SG1, SG2, SG3
We have servers in each site which get assigned /31s IPs from a /24
So we'd like the ability to assign the /24 prefix to the site-group only, since it does not "belong" to only one site.
From there we can assign smaller prefixes into the relevant site as needed

Database changes

unsure, don't think so

External dependencies

none

[jeremystretch]

I think it makes a lot of sense to bring prefix scoping inline with what we did for VLAN groups in v2.11 (#5284).

[jeremystretch]

Marking as blocked until we figure out whether there's a more optimal way to track multi-model parent assignments (see #6440).

[jeremystretch]

Extending this to also support the assignment of a prefix to a region as originally proposed under #5788.

[firstkevinds]

What about changing Sites to be 'tags' so that multiple sites can be tagged for a prefix?

If doing this, one wouldn't be able to downgrade versions after the upgrade script converts the database.

[bsakdol]

Based on comments, it appears this issue has been marked as blocked, pending #6440. That ticket has since gone stale, so I am hoping this one does not have the same fate. I suspect being able to assign prefixes to regions and site groups would alleviate some of the pain of not being able to collapse prefixes anymore. We are currently able to filter by max length and max depth to have a similar experience to the old collapsed prefixes functionality, but those filters are not available for all prefix views (in my case, specifically when viewing large summary prefixes covering multiple sites).