- client_group: blah
  client_proxies:
    address: 1.2.3.4:4828
    protocol:
      type: http


- rule_group: omgz
  rules:
    mask: 1.2.3.4/32
    action: allow
    override_client_proxies: blah

- address: 127.0.0.1:27272
  protocol:
    type: http
  client_proxies:
    - blah
  rules: omgz