AZU002 - An outbound network security rule allows traffic to /0.

Network security rules should not use very broad subnets.

Where possible, segments should be broken into smaller subnets.

The following example will fail the AZU002 check.

resource "azurerm_network_security_rule" "bad_example" {
	direction = "Outbound"
	destination_address_prefix = "0.0.0.0/0"
	access = "Allow"
}

The following example will pass the AZU002 check.

resource "azurerm_network_security_rule" "good_example" {
	direction = "Outbound"
	destination_address_prefix = "10.0.0.0/16"
	access = "Allow"
}