How to create an AWS Security Group rule allowing RDP ports from anywhere using Terraform?

Question

I want to create AWS security group rule resource "aws_security_group_rule", and then want to attach it to AWS EC2 Windows instance and be able to RDP into it from anywhere.

sg.tf

resource "aws_security_group" "My_VPC_Security_Group" {

  vpc_id       = aws_vpc.My_VPC.id

  name         = "My VPC Security Group"

  description  = "My VPC Security Group"

} 

Can anyone help me with this?

Answer 1

You need to use the following where "3389" will be the default RDP port:

resource "aws_security_group" "My_VPC_Security_Group" {

  vpc_id       = aws_vpc.My_VPC.id

  name         = "My VPC Security Group"

  description  = "My VPC Security Group"

  ingress {

    from_port   = 3389

    to_port     = 3389

    protocol    = "tcp"

    cidr_blocks = ["0.0.0.0/0"]

  }  

  egress {

    from_port   = 0

    to_port     = 0

    protocol    = "-1"

    cidr_blocks = ["0.0.0.0/0"]

}

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