Nit 963 delius core db Create inbound sg rule (#4297)

* initial module declaration

* ami to object

* set up security groups

* adding dns and condensing sg

* correct provider configs + ebs/key troubleshooting

* refactoring

* refactor

* Update instance.tf

* add correct tags

* Update instance.tf

* Update instance.tf

* move locals

* Remove double b64 encode

* Update database.tf

* enforce subnet spread

* Update database.tf

* Update database.tf

* Update database.tf

* error

* Update database.tf

* Update sg.tf

terraform/environments/delius-core/modules/components/oracle_db_shared/sg.tf

@@ -52,6 +52,15 @@ resource "aws_vpc_security_group_egress_rule" "db_inter_conn" {
   referenced_security_group_id = aws_security_group.db_ec2.id
 }
 
+resource "aws_vpc_security_group_ingress_rule" "db_inter_conn" {
+  security_group_id            = aws_security_group.db_ec2.id
+  description                  = "Allow communication between delius db instances"
+  from_port                    = 1521
+  to_port                      = 1521
+  ip_protocol                  = "tcp"
+  referenced_security_group_id = aws_security_group.db_ec2.id
+}
+
 resource "aws_vpc_security_group_ingress_rule" "delius_db_security_group_ingress_bastion" {
   security_group_id            = aws_security_group.db_ec2.id
   description                  = "bastion to testing db"