For every storage device in /srv/node on each node add entries to each ring:

export ZONE=                    # set the zone number for that storage device
export STORAGE_LOCAL_NET_IP=    # and the IP address
export WEIGHT=100               # relative weight (higher for bigger/faster disks)
export DEVICE=sdb1
swift-ring-builder account.builder add z$ZONE-$STORAGE_LOCAL_NET_IP:6002/$DEVICE $WEIGHT
swift-ring-builder container.builder add z$ZONE-$STORAGE_LOCAL_NET_IP:6001/$DEVICE $WEIGHT
swift-ring-builder object.builder add z$ZONE-$STORAGE_LOCAL_NET_IP:6000/$DEVICE $WEIGHT