Add cloudflare_access_identity_provider data source

[jeffreymlewis]

Current Terraform and Cloudflare provider version

% terraform -v 
Terraform v0.13.7
+ provider registry.terraform.io/cloudflare/cloudflare v3.1.0
+ provider registry.terraform.io/hashicorp/aws v3.60.0
+ provider registry.terraform.io/hashicorp/random v3.1.0

Description

I request adding a data source named cloudflare_access_identity_provider, allowing one to lookup metadata of a previously configured identity provider via the friendly name.

Use cases

Resources like cloudflare_access_application require the unique ID number of an identity provider (the allowed_idps input variable). In situations where the Identity Provider's unique ID number cannot be shared via the terraform remote state, it would be great to lookup this ID number via a data source.

The Cloudflare API supports lookup of this ID as shown here.

https://api.cloudflare.com/#access-identity-providers-list-access-identity-providers

curl -X GET "https://api.cloudflare.com/client/v4/accounts/699d98642c564d2e855e9661899b7252/access/identity_providers" \
    -H "Authorization: Bearer XXXXXXXXXXX" \
    -H "Content-Type: application/json"

Potential Terraform configuration

resource "cloudflare_access_application" "main" {
  zone_id                   = "example.com"
  name                      = "name"
  domain                    = "name.example.com"
  type                      = "self_hosted"
  session_duration          = "24h"
  allowed_idps              = [data.cloudflare_access_identity_provider.main.id]
  auto_redirect_to_identity = true
}

data "cloudflare_access_identity_provider" "main" {
  name = "my-idp"
}

References

No response