Commits on Sep 17, 2021

1. Case-insensitive comparison of IPv6 addresses …

   Our API converts upper-case IPv6 addresses to lower-case. This in turn
   leads to a mismatch between what is stored in the Terraform state and
   what our API returns. As a result Terraform tries to update a rule,
   which does not need updating.
   
   The solution is to convert any IP addresses to lower-case before
   Terraform saves them to the state. This can be easily achieved using the
   StateFunc field of schema.Schema. However, when the field is used within
   a schema element of schema.TypeSet it creates an additional invalid
   value. This to be a known bug in Terraform:
   hashicorp/terraform-plugin-sdk#160
   
   For our case we can get by with filtering the invalid entry from the
   firewall rules before sending any requests to the API.

   

   fhofherr committed Sep 17, 2021
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