kvm netplan bridge

01-kvmbridge.yaml

# /etc/netplan/01-kvmbridge.yaml
network:
  version: 2
  renderer: networkd
  ethernets:
    enp2s0:
      dhcp4: yes
      dhcp6: no

  bridges:
    br0:
      dhcp4: yes
      interfaces: [enp2s0]
      nameservers:
         addresses: [1.1.1.1, 8.8.8.8]
      
## /etc/docker/daemon.json
{
  "bridge": "br0",
  "iptables": false
}

## KVM instance config
<interface type='bridge'>
  <mac address='52:54:00:01:02:03'/>
  <source bridge='br0'/>
  <model type='virtio'/>
</interface>