magnum/magnum/drivers/common/templates/swarm/fragments/write-network-config.sh

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#!/bin/sh
. /etc/sysconfig/heat-params
if [ "$NETWORK_DRIVER" != "flannel" ]; then
exit 0
fi
FLANNEL_JSON=/etc/sysconfig/flannel-network.json
# Generate a flannel configuration that we will
# store into etcd using curl.
cat > $FLANNEL_JSON <<EOF
{
"Network": "$FLANNEL_NETWORK_CIDR",
"Subnetlen": $FLANNEL_NETWORK_SUBNETLEN,
"Backend": {
"Type": "$FLANNEL_BACKEND"
}
}
EOF