blending would be good

README.md

@@ -7,3 +7,7 @@
 ## required variables
 
 ## optional variables
+
+## outputs
+* `id` - The access rule ID.
+* `zone_id` - The DNS zone ID.

outputs.tf

+output "whitelist_id" {
+  value = ["${cloudflare_access_rule.whitelisted_ip.*.id}"]
+}
+
+output "whitelist_zone_id" {
+  value = ["${cloudflare_access_rule.whitelisted_ip.*.zone_id}"]
+}

rule.tf

 # TBD
+
+resource "cloudflare_access_rule" "whitelisted_ip" {
+  count = "${length(var.whitelist_ips)}"
+  notes = "Whitelist IPs from Terraform"
+  mode  = "whitelist"
+
+  configuration {
+    target = "ip_range"
+    value  = "${element(var.whitelist_ips, count.index)}"
+  }
+}

variables.tf

+variable "notes" {}
+variable "mode" {}
+variable "configuration_target" {}
+variable "configuration_value" {}
+variable "zone" {}
+
+variable "whitelist_ips" {
+  type = "list"
+}