Move constant variables to their own modules.

modules/aws-ami-constants/outputs.tf

@@ -0,0 +1,58 @@
+################################################################################
+# AWS AMI vars
+# These outputs are really more like constants. Using outputs improves
+# readability. The values are manually updated. Use the aws-amis module to get
+# the latest for each distro. Keep in mind that AMIs are region specific this is
+# why you may see values and other regions commented out.
+################################################################################
+
+output "amzn2-ami" {
+  # us-east-2
+  # default     = "ami-0dd0ccab7e2801812"
+  # us-gov-west-1
+  value       = "ami-02ab588324a95cf31"
+  description = "The AMI to use for Amazon Linux 2."
+}
+output "ubuntu-ami" {
+  # us-east-2
+  # value = "ami-06c7d6c0987eaa46c"
+  # us-gov-west-1
+  value       = "ami-066189aeb91baa0ab"
+  description = "The AMI to use for Ubuntu."
+}
+output "centos7-ami" {
+  # us-east-2
+  value       = "ami-00f8e2c955f7ffa9b"
+  description = "The AMI to use for CentOS 7."
+}
+output "centos8-ami" {
+  # us-east-2
+  value       = "ami-057cacbfbbb471bb3"
+  description = "The AMI to use for CentOS 8."
+}
+output "arch-ami" {
+  # us-east-2
+  value       = "ami-02653f06de985e3ba"
+  description = "The AMI to use for Arch Linux."
+}
+output "rhel7-ami" {
+  # us-east-2
+  # value = "ami-0a509b3c2a4d05b3f"
+  # us-gov-west-1
+  value       = "ami-04ccdf5793086ea95"
+  description = "The AMI to use for RHEL 7."
+}
+output "rhel8-ami" {
+  # us-east-2
+  # value = "ami-0d871ca8a77af2948"
+  # us-gov-west-1
+  value       = "ami-0b1f10cd1cd107dd2"
+  description = "The AMI to use for RHEL 8."
+}
+output "win-srv-2019-ami" {
+  # us-east-2
+  # value = ???
+  # us-gov-west-1
+  value       = "ami-0f838c3c35ab60fc4"
+  description = "The AMI to use for Windows Server 2019."
+}