locals.tf

locals {
  # Convert list to a string separated and prepend by a comma
  docker_machine_options_string = format(
    ",\"amazonec2-metadata-token=${var.docker_machine_instance_metadata_options.http_tokens}\", \"amazonec2-metadata-token-response-hop-limit=${var.docker_machine_instance_metadata_options.http_put_response_hop_limit}\",%s",
    join(",", formatlist("%q", concat(var.docker_machine_options, local.runners_docker_registry_mirror_option))),
  )

  runners_docker_registry_mirror_option = var.runners_docker_registry_mirror == "" ? [] : ["engine-registry-mirror=${var.runners_docker_registry_mirror}"]

  # Ensure max builds is optional
  runners_max_builds_string = var.runners_max_builds == 0 ? "" : format("MaxBuilds = %d", var.runners_max_builds)

  # Define key for runner token for SSM
  secure_parameter_store_runner_token_key  = "${var.environment}-${var.secure_parameter_store_runner_token_key}"
  secure_parameter_store_runner_sentry_dsn = "${var.environment}-${var.secure_parameter_store_runner_sentry_dsn}"

  # Custom names for runner agent instance, security groups, and IAM objects
  name_runner_agent_instance = var.overrides["name_runner_agent_instance"] == "" ? local.tags["Name"] : var.overrides["name_runner_agent_instance"]
  name_sg                    = var.overrides["name_sg"] == "" ? local.tags["Name"] : var.overrides["name_sg"]
  name_iam_objects           = lookup(var.overrides, "name_iam_objects", "") == "" ? local.tags["Name"] : var.overrides["name_iam_objects"]
  runners_additional_volumes = <<-EOT
  %{~if var.runners_add_dind_volumes~},"/certs/client", "/builds", "/var/run/docker.sock:/var/run/docker.sock"%{endif~}%{~for volume in var.runners_additional_volumes~},"${volume}"%{endfor~}
  EOT

  runners_machine_autoscaling = templatefile("${path.module}/template/runners_machine_autoscaling.tpl", {
    runners_machine_autoscaling = var.runners_machine_autoscaling
    }
  )
}