How to add an ssh key to an GCP instance using terraform?

Question

So I have a terraform script that creates instances in Google Cloud Platform, I want to be able to have my terraform script also add my ssh key to the instances I create so that I can provision them through ssh. Here is my current terraform script.

#PROVIDER INFO provider "google" {   credentials = "${file("account.json")}"   project     = "myProject"   region      = "us-central1" }   #MAKING CONSUL SERVERS resource "google_compute_instance" "default" {   count    =  3   name     =  "a-consul${count.index}"   machine_type = "n1-standard-1"   zone         = "us-central1-a"    disk {     image = "ubuntu-1404-trusty-v20160627"   }    # Local SSD disk   disk {     type    = "local-ssd"     scratch = true   }    network_interface {     network = "myNetwork"     access_config {}   } } 

What do I have to add to this to have my terraform script add my ssh key /Users/myUsername/.ssh/id_rsa.pub?

Answer 1

I think something like this should work:

  metadata = {     ssh-keys = "${var.gce_ssh_user}:${file(var.gce_ssh_pub_key_file)}"   } 

https://cloud.google.com/compute/docs/instances/adding-removing-ssh-keys describes the metadata mechanism, and I found this example at https://github.com/hashicorp/terraform/issues/6678