
admin.hostSetZone( config as element(configuration), host-id as (Number|String), value as String ) as element(configuration)
This function changes the zone value for the host to the newly specified value.
http://marklogic.com/xdmp/privileges/admin/host
http://marklogic.com/xdmp/privileges/admin/host/{id}
  
  const admin = require('/MarkLogic/admin.xqy');
  var config = admin.getConfiguration()
  var hostid = admin.hostGetId(config, xdmp.hostName())
  admin.hostSetZone(config, hostid, "EuropeBerlin1")
   //returns the new configuration element -- use admin.saveConfiguration
   //to save the changes to the configuration or pass the configuration
   //to other Admin API functions to make other changes.