First, create VPC as Security Group attaches to VPC id.
Next, add to your Terraform code:
resource "aws_security_group" "mtc_sg" {
name = "dev_sg"
description = "dev security group"
vpc_id = aws_vpc.mtc_vpc.id
ingress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
}