#cloud-config merge_how: dict(recurse_array)+list(append) write_files: - path: /etc/sysconfig/heat-params owner: "root:root" permissions: "0644" content: | KUBE_ALLOW_PRIV="$KUBE_ALLOW_PRIV" NETWORK_DRIVER="$NETWORK_DRIVER" FLANNEL_NETWORK_CIDR="$FLANNEL_NETWORK_CIDR" FLANNEL_NETWORK_SUBNETLEN="$FLANNEL_NETWORK_SUBNETLEN" FLANNEL_USE_VXLAN="$FLANNEL_USE_VXLAN" PORTAL_NETWORK_CIDR="$PORTAL_NETWORK_CIDR" ETCD_DISCOVERY_URL="$ETCD_DISCOVERY_URL"