revert cidr default back to 0./0

Author: drewmullen

README.md

@@ -353,7 +353,7 @@ No modules.
 | <a name="input_amazon_side_asn"></a> [amazon\_side\_asn](#input\_amazon\_side\_asn) | The Autonomous System Number (ASN) for the Amazon side of the gateway. By default the virtual private gateway is created with the current default Amazon ASN. | `string` | `"64512"` | no |
 | <a name="input_assign_ipv6_address_on_creation"></a> [assign\_ipv6\_address\_on\_creation](#input\_assign\_ipv6\_address\_on\_creation) | Assign IPv6 address on subnet, must be disabled to change IPv6 CIDRs. This is the IPv6 equivalent of map\_public\_ip\_on\_launch | `bool` | `false` | no |
 | <a name="input_azs"></a> [azs](#input\_azs) | A list of availability zones names or ids in the region | `list(string)` | `[]` | no |
-| <a name="input_cidr"></a> [cidr](#input\_cidr) | (Optional) The IPv4 CIDR block for the VPC. CIDR can be explicitly set or it can be derived from IPAM using `ipv4_netmask_length` & `ipv4_ipam_pool_id` | `string` | `null` | no |
+| <a name="input_cidr"></a> [cidr](#input\_cidr) | (Optional) The IPv4 CIDR block for the VPC. | `string` | `"0.0.0.0/0"` | no |
 | <a name="input_create_database_internet_gateway_route"></a> [create\_database\_internet\_gateway\_route](#input\_create\_database\_internet\_gateway\_route) | Controls if an internet gateway route for public database access should be created | `bool` | `false` | no |
 | <a name="input_create_database_nat_gateway_route"></a> [create\_database\_nat\_gateway\_route](#input\_create\_database\_nat\_gateway\_route) | Controls if a nat gateway route should be created to give internet access to the database subnets | `bool` | `false` | no |
 | <a name="input_create_database_subnet_group"></a> [create\_database\_subnet\_group](#input\_create\_database\_subnet\_group) | Controls if database subnet group should be created (n.b. database\_subnets must also be set) | `bool` | `true` | no |

variables.tf

@@ -11,9 +11,9 @@ variable "name" {
 }
 
 variable "cidr" {
-  description = "(Optional) The IPv4 CIDR block for the VPC. CIDR can be explicitly set or it can be derived from IPAM using `ipv4_netmask_length` & `ipv4_ipam_pool_id`"
+  description = "(Optional) The IPv4 CIDR block for the VPC."
   type        = string
-  default     = null
+  default     = "0.0.0.0/0"
 }
 
 variable "enable_ipv6" {