Error while using public and private keys to connect to AWS

[vkarry]

I am seeing following error, when terraform is trying to use private key to connect to instances in AWS. Please advise.

$ terraform plan

Error: aws_instance.example: 1 error(s) occurred:

• aws_instance.example: file: open MyKey: no such file or directory in:

${file("${var.path_to_private_key}")}

Here is the snippet from instance.tf which is executing: resource "aws_key_pair" "mykey" { key_name = "MyKey" public_key = "${file("${var.path_to_public_key}")}" }

resource "aws_instance" "example" { ami = "${lookup(var.amis,var.region)}" instance_type = "t2.micro" key_name = "${aws_key_pair.mykey.key_name}" tags { Name = "${var.instance_tag}" } provisioner "file" { source = "script.sh" destination = "/tmp/script.sh" } provisioner "remote-exec" { inline = [ "chmod +x /tmp/script.sh", "sudo /tmp/script.sh" ] } connection { user = "${var.instance_username}" private_key = "${file("${var.path_to_private_key}")}" } }

And variables.tf: variable "path_to_public_key" { description = "Path to public key" default = "MyKey.pub" }

variable "path_to_private_key" { description = "Path to private key" default = "MyKey" }

[vkarry]

Never mind. I fixed this issue by providing file extension ".pem" to public key file.

[GiridharTupuri]

Hi Vkarry, can you know the file format and change you have made and i have the issue related to plan. Error: Error applying plan:

1 error(s) occurred:

• aws_instance.example: Failed to read key " Public key

[ThuongTon2015]

Hello Master !

The instance is created. However, the script.sh does not run. How to resolve this issue? Here is the file ################################################## resource "aws_key_pair" "Mykey" { key_name = "Mykey" public_key = file(var.PATH_TO_PUBLIC_KEY) }

resource "aws_instance" "example" { ami = var.AMIS[var.AWS_REGION] instance_type = "t2.micro" key_name = aws_key_pair.Mykey.key_name

provisioner "file" { source = "script.sh" destination = "./tmp/script.sh" } provisioner "remote-exec" { inline = [ "chnodv +x /tmp/script.sh", "sudo ./tmp/script.sh", ] } connection { host = coalesce(self.public_ip,self.private_ip) type = "ssh" user = var.INSTANCE_USERNAME private_key = file(var.PATH_TO_PRIVATE_KEY) } }

##########################################################

"Mykey" is created in AWS, however, it is not download to SSH folder. Therefore, the folder has no keys (Private as well as Public) at all for the "remote-exec"

[ThuongTon2015]

Here is the error message: Error: timeout - last error: SSH authentication failed (unbutu@34.201.37.56:22): ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain