introduced the mandatory tag interface to this database creation module.

Author: apolloakora

rds.postgres-main.tf

@@ -1,4 +1,25 @@
 
+locals {
+
+    subnet_group_tags = {
+        Name   = "db-subnet-group-${ var.in_ecosystem_name }-${ var.in_tag_timestamp }"
+        Desc   = "This RDS postgres database subnet group for ${ var.in_ecosystem_name } ${ var.in_tag_description }"
+    }
+
+    database_tags = {
+        Name  = var.in_database_name
+        Id    = "${ var.in_database_name }-${ var.in_ecosystem_name }-${ var.in_tag_timestamp }"
+    }
+
+    cloned_database_tags = {
+        Desc   = "This PostgreSQL database named ${ var.in_database_name } was cloned from snapshot ${ data.aws_db_snapshot.from[0].id } and ${ var.in_tag_description }"
+    }
+
+    fresh_database_tags = {
+        Desc  = "This brand new PostgreSQL database named ${ var.in_database_name } ${ var.in_tag_description }"
+    }
+
+}
 
 /*
  | --
@@ -48,12 +69,7 @@ resource aws_db_instance fresh {
     backup_window           = "21:00-23:00"
     maintenance_window      = "mon:00:00-mon:03:00"
 
-    tags = {
-        Name  = var.in_database_name
-        Id    = "${ var.in_database_name }-${ var.in_ecosystem_name }-${ var.in_tag_timestamp }"
-        Class = "${ var.in_ecosystem_name }"
-        Desc  = "This brand new PostgreSQL database named ${ var.in_database_name } ${ var.in_tag_description }"
-    }
+    tags = merge( local.database_tags, local.fresh_database_tags, var.in_mandatory_tags )
 
 }
 
@@ -97,12 +113,7 @@ resource aws_db_instance clone {
     backup_window           = "21:00-23:00"
     maintenance_window      = "mon:00:00-mon:03:00"
 
-    tags = {
-        Name  = var.in_database_name
-        Id    = "${ var.in_database_name }-${ var.in_ecosystem_name }-${ var.in_tag_timestamp }"
-        Class = "${ var.in_ecosystem_name }"
-        Desc   = "This PostgreSQL database named ${ var.in_database_name } was cloned from snapshot ${ data.aws_db_snapshot.from[0].id } and ${ var.in_tag_description }"
-    }
+    tags = merge( local.database_tags, local.cloned_database_tags, var.in_mandatory_tags )
 }
 
 
@@ -133,19 +144,15 @@ resource aws_db_subnet_group me {
     name_prefix = "db-${ var.in_ecosystem_name }"
     description = "RDS postgres subnet group for the ${ var.in_ecosystem_name } database."
     subnet_ids  = var.in_db_subnet_ids
-
-    tags = {
-        Name   = "db-subnet-group-${ var.in_ecosystem_name }-${ var.in_tag_timestamp }"
-        Class = "${ var.in_ecosystem_name }"
-        Desc   = "This RDS postgres database subnet group for ${ var.in_ecosystem_name } ${ var.in_tag_description }"
-    }
+    tags        = merge( local.subnet_group_tags, var.in_mandatory_tags )
 }
 
 
 /*
  | --
  | -- The Terraform generated database password will contain
- | -- thirty two alphanumeric characters and no specials.
+ | -- forty-eight characters that may include all alpha-numerics
+ | -- and eight special printable characters.
  | --
 */
 resource random_string dbpassword {

rds.postgres-variables.tf

@@ -22,14 +22,43 @@ variable in_id_of_db_to_clone {
     default = ""
 }
 
+### ############################## ###
+### [[variable]] in_mandatory_tags ###
+### ############################## ###
+
+variable in_mandatory_tags {
+
+    description = "Optional tags unless your organization mandates that a set of given tags must be set."
+    type        = map
+    default     = { }
+}
+
+
+### ################# ###
+### in_ecosystem_name ###
+### ################# ###
+
 variable in_ecosystem_name {
-    description = "Creational stamp binding all infrastructure created for this ecosystem."
+
+    description = "Creational stamp binding all infrastructure components created on behalf of this ecosystem instance."
 }
 
+
+### ################ ###
+### in_tag_timestamp ###
+### ################ ###
+
 variable in_tag_timestamp {
-    description = "Ubiquitous alphanumeric timestamp for resource tags like 909081716 ( YMMDDhhmm ) for 9th Nov 2019 at 5:16 pm."
+
+    description = "A timestamp for resource tags in the format ymmdd-hhmm like 80911-1435"
 }
 
+
+### ################## ###
+### in_tag_description ###
+### ################## ###
+
 variable in_tag_description {
-    description = "Ubiquitous description for resource tags detailing who created the resource and when, where and why."
+
+    description = "Ubiquitous note detailing who, when, where and why for every infrastructure component."
 }