test(e2e): Add infra for ssh certificate injection test (#3532)

enos/modules/test_e2e_docker/main.tf

@@ -90,6 +90,11 @@ variable "target_port" {
   type        = string
   default     = ""
 }
+variable "target_ca_key" {
+  description = "CA Private Key (base64 encoded)"
+  type        = string
+  default     = ""
+}
 variable "vault_addr" {
   description = "External network address of Vault. Will be converted to a URL below"
   type        = string
@@ -202,6 +207,7 @@ resource "enos_local_exec" "run_e2e_test" {
     E2E_SSH_USER                  = var.target_user,
     E2E_SSH_PORT                  = var.target_port,
     E2E_SSH_KEY_PATH              = local.aws_ssh_private_key_path,
+    E2E_SSH_CA_KEY                = var.target_ca_key,
     VAULT_ADDR                    = local.vault_addr,
     VAULT_ADDR_INTERNAL           = local.vault_addr_internal,
     VAULT_TOKEN                   = var.vault_root_token,

enos/modules/test_e2e_docker/test_runner.sh

@@ -20,6 +20,7 @@ docker run \
     -e "E2E_TARGET_IP=$E2E_TARGET_IP" \
     -e "E2E_SSH_USER=$E2E_SSH_USER" \
     -e "E2E_SSH_PORT=$E2E_SSH_PORT" \
+    -e "E2E_SSH_CA_KEY=$E2E_SSH_CA_KEY" \
     -e "E2E_SSH_KEY_PATH=/keys/target.pem" \
     -e "VAULT_ADDR=$VAULT_ADDR_INTERNAL" \
     -e "VAULT_TOKEN=$VAULT_TOKEN" \