sed -i "s/bridge_name/${bridge_name:-''}/" /etc/os-net-config/config.json
sed -i "s/interface_name/${interface_name:-''}/" /etc/os-net-config/config.json
sed -i "s/bridge_name/${bridge_name:-''}/" /etc/os-net-config/config.json
sed -i "s/interface_name/${interface_name:-''}/" /etc/os-net-config/config.json