example.vcl

director autodirector_ random {
   {
    .backend = F_us_east_1_assets_aweberstage_com;
    .weight  = 100;
   }{
    .backend = F_us_west_1_assets_aweberstage_com;
    .weight  = 100;
   }
}

sub vcl_recv {
#--FASTLY RECV BEGIN
  if (req.restarts == 0) {
    if (!req.http.X-Timer) {
      set req.http.X-Timer = "S" time.start.sec "." time.start.usec_frac;
    }
    set req.http.X-Timer = req.http.X-Timer ",VS0";
  }

  # default conditions
  set req.backend = autodirector_;


    # end default conditions

  if (req.backend.backend == F_us_east_1_assets_aweberstage_com) {
    set req.http.host = "us-east-1.assets.aweberstage.com";
  }
  if (req.backend.backend == F_us_west_1_assets_aweberstage_com) {
    set req.http.host = "us-west-1.assets.aweberstage.com";
  }

#--FASTLY RECV END