RJSF and JSON Schema support
readOnly fields. Massdriver extends this functionality with the
$md.immutable (boolean) annotation.
When a field is set to immutable, it cannot be changed once provisioned. This is useful for adding guardrails on fields that might cause recreation if a value is changed. I.e.: changing the CIDR address of a VPC.
This is currently only supported on top-level properties.
title: Immutable Field Example
title: CIDR Range