message: [terraform] Default to published Docker images
  These images are now available in our public Docker registry.
diff: @@ -33,6 +33,7 @@ variable "api_sources_ipv4" {
  variable "image_repo" {
  type = string
  description = "Docker image repository to use for validator"
  + default = "docker.libra.org/validator"
  }
  variable "image_tag" {
  @@ -53,6 +54,7 @@ variable "validator_type" {
  variable "faucet_image_repo" {
  description = "Docker image repository to use for faucet server"
  + default = "docker.libra.org/faucet"
  }
  variable "faucet_log_level" {
  