microsoft / microsoft/AzureTRE

Update address_space_size property to allow cidr subnets

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#4,733 4 comments 0 reactions 1 assignee View on GitHub

@JC-wk is already working on this.

Since Apr 1, 2026.

Dominant language
Python
Stars
235
Forks
192
Avg merge
1d 23h
Merged PRs (30d)
13

Description

Is your feature request related to a problem? Please describe.
currently address_space_size allows small (/24) ,medium (22) and large (16)

Describe the solution you'd like
When specifying subnet size via address_space_size
I would like to just specify the cidr instead of small/medium/large and also use smaller subnets than 24 e.g 25, 26

Describe alternatives you've considered
I have considered adding additional sizes e.g xsmall but it doesn't make sense to me as someone who understands subnet masks.

Additional context
I plan to try implementing this and allowing backwards compatibility with the existing small, medium and large and add the ability to specify a custom cidr number.

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