feat: add resource rds instance

module-rds/main.tf

@@ -0,0 +1,26 @@
+provider "aws" {
+  region = var.aws_region
+}
+
+resource "aws_db_subnet_group" "db-subnet-group" {
+  name       = "db-subnet-group"
+  subnet_ids = var.db_subnet_ids
+
+  tags = {
+    Name = "khu-db-subnet-group"
+  }
+}
+
+resource "aws_db_instance" "khu-rds" {
+  allocated_storage    = 20
+  storage_type         = "gp2"
+  engine               = "mysql"
+  engine_version       = "8.0"
+  instance_class       = "db.t2.micro"
+  db_name              = var.db_name
+  username             = var.db_username
+  password             = var.db_password
+  parameter_group_name = "default.mysql8.0"
+  db_subnet_group_name = aws_db_subnet_group.db-subnet-group.name
+  multi_az             = true
+}