{{- end }}
      {{- if .sub_zone }}
      {{- if or .region .zone }}
      ,
      {{- end }}
      "sub_zone": "{{ .sub_zone }}"
      {{- end }}
    },
    "metadata": {{ .meta_json_str }}
  },
  "layered_runtime": {
      "layers": [
          {
            "name": "global config",
            "static_layer": {{ .runtime_flags }}
          },
          {
              "name": "admin",