# Shared cluster upstream — include in http {} before apps.conf / ac-fe.conf.
# STAGING/DEV: cast01–03 lab cluster (no artc0).

map $http_upgrade $connection_upgrade {
	default upgrade;
	''      close;
}

upstream ac_be_backend {
	server cast01.intra.raptor.org:80;
	server cast02.intra.raptor.org:80 backup;
	server cast03.intra.raptor.org:80 backup;
	keepalive 8;
}