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John Fox
Asked: 2019-05-17 12:58:09 +0800 CST

Getting EC2 Windows Password from instances when using Terraform

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I'm struggling to get the password from a couple of new ec2 instances when using terraform. Been reading up through a couple of posts and thought i had it but not getting anywhere.

Here's my config:

resource "aws_instance" "example" {
  ami = "ami-06f9d25508c9681c3"
  count         = "2"
  instance_type = "t2.small"
  key_name = "mykey"
  vpc_security_group_ids =["sg-98d190fc","sg-0399f246d12812edb"]
 get_password_data = "true"
}

output "public_ip" {
    value = "${aws_instance.example.*.public_ip}"
}

output "public_dns" {
    value = "${aws_instance.example.*.public_dns}"
}

output "Administrator_Password" {
    value = "${rsadecrypt(aws_instance.example.*.password_data, file("mykey.pem"))}"
}

Managed to clear up all the syntax errors but now when running get the following error:

PS C:\tf> terraform apply
aws_instance.example[0]: Refreshing state... (ID: i-0e087e3610a8ff56d)
aws_instance.example[1]: Refreshing state... (ID: i-09557bc1e0cb09c67)

Error: Error refreshing state: 1 error(s) occurred:

* output.Administrator_Password: At column 3, line 1: rsadecrypt: argument 1 should be type string, got type list in:

${rsadecrypt(aws_instance.example.*.password_data, file("mykey.pem"))}
amazon-ec2

1 Answers

  1. if you are inside the resource you are trying to execute you can just use:

    ${rsadecrypt(self.password_data,file("path"))}

    If you are outside you will have to loop over the array. In terraform >12

    output "Administrator_Password" {
   value = [
     for g in aws_instance.example : rsadecrypt(g.password_data,file("path"))
   ]
 }
    • 1