Can be used to move connectivity from an interface to a bridge with the provided IP information. While I have successfully used this while remote it must be done with care as it could very well send you to the datacenter. Also it assumes the DNS server is the same as the gateway.

createbridge.sh

#!/bin/bash

if [ $# -ne 3 ] ; then
  echo "usage: $0 <interface> <ip/cidr> <gateway>"
  echo "ie: $0 eno1 10.0.0.25/24 10.0.0.1"
  exit 1
fi

INTERFACE=$1
IP=$2
GATEWAY=$3
DNS=${GATEWAY}
BRIDGE="br0"

nmcli connection add type bridge autoconnect yes con-name ${BRIDGE} ifname ${BRIDGE}
nmcli connection modify ${BRIDGE} ipv4.addresses ${IP} ipv4.method manual
nmcli connection modify ${BRIDGE} ipv4.gateway ${GATEWAY}
nmcli connection modify ${BRIDGE} ipv4.dns ${DNS}
nmcli connection modify ${BRIDGE} ipv4.dns-search srv.world
nmcli connection del ${INTERFACE}
nmcli connection add type bridge-slave autoconnect yes con-name ${INTERFACE} ifname ${INTERFACE} master ${BRIDGE}

sleep 3
reboot