To create the MySQL database, we can use a public module that is available in the official repository found here: https://registry.terraform.io/modules/terraform-aws-modules/rds/aws/1.21.0.
In the following code, I will simplify the original example slightly and add a security group as follows. Refer to the main.tf file:
resource "aws_security_group" "rds" { name = "allow_from_my_vpc" description = "Allow from my vpc" vpc_id = "${var.my_default_vpcid}" ingress { from_port = 3306 to_port = 3306 protocol = "tcp" cidr_blocks = ["172.31.0.0/16"] }}module "db" { source = "terraform-aws-modules/rds/aws" identifier = "demodb" engine = "mysql" engine_version = "5.7.19" instance_class = "db.t2.micro" allocated_storage ...