#Ironic Metal3 settings for provisioning network
export IRONIC_INTERFACE="eth1"
EOF
+
+if [[ ! -z "${DOCKER_REGISTRY_MIRRORS+x}" ]]; then
+ cat <<EOF >>user_config.sh
+
+#Use a registry mirror for downloading container images
+export DOCKER_REGISTRY_MIRRORS="${DOCKER_REGISTRY_MIRRORS}"
+EOF
+fi