[[inputs.memcached]]
  servers = ["$MY_TEST_SERVER"]
  namepass = ["metricname1", "ip_${MY_TEST_SERVER}_name"]
  namedrop = ["metricname2"]
  fieldpass = ["some", "strings"]
  fielddrop = ["other", "stuff"]
  interval = "$TEST_INTERVAL"
  [inputs.memcached.tagpass]
    goodtag = ["mytag"]
  [inputs.memcached.tagdrop]
    badtag = ["othertag"]