wget https://mirror.umd.edu/centos/7/isos/x86_64/CentOS-7-x86_64-Everything-1810.iso

sudo virt-install --name confluence \
             --memory 16384 \
             --vcpus 4 \
             --disk path=/mnt/A/images/confluence.img,size=100 \
             --location /var/lib/libvirt/images/CentOS-7-x86_64-Everything-1810.iso \
             --os-type linux \
             --os-variant centos7.0 \
             --network=bridge:br0,model=virtio \
             --graphics vnc,listen=192.168.2.13 \
             --noautoconsole

virsh vncdisplay confluence