Launch VM Instances on Compute Node

# cd efa

# wget https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img

# sudo virt-customize -a bionic-server-cloudimg-amd64.img  --root-password password:password 

# openstack image create --disk-format qcow2 --public --file bionic-server-cloudimg-amd64.img  vlan-capable-image 
 
# The only vNIC in your instance corresponds to the parent port, so boot your instance with the parent port given. 
# Do not add child ports as NICs to 'nova boot / openstack server create'. 

# openstack server create --flavor ds512M --image vlan-capable-image --nic port-id=port0 --availability-zone Compute-1  trunk-instance-1 

On the VM  
# sudo ip link add link eth0 name eth0.101 type vlan id 101 
# sudo ifconfig eth0.101 up 
# sudo dhclient eth0.101

# openstack port create port0_2 \ --network net0 parent_mac_2="$( openstack port show port0_2 | awk '/ mac_address / { print $4 }' )" 

# openstack port create port1_2 \ --network net1   --mac-address  "$parent_mac_2" 

# openstack port create port2_2 \ --network net2 --mac-address  "$parent_mac_2" 

# openstack network trunk create trunk0_2 \ --parent-port port0_2 

# openstack network trunk set trunk0_2 \ --subport port=port1_2,segmentation-type=inherit 
 
# openstack network trunk set trunk0_2 \ --subport port=port2_2,segmentation-type=inherit 

# openstack server create --flavor ds512M --image vlan-capable-image --nic port-id=port0_2  --availability-zone Compute-2  trunk-instance-2 

On the VM  
# sudo ip link add link eth0 name eth0.101 type vlan id 101 
# sudo ifconfig eth0.101 up 
# sudo dhclient eth0.101 

# sudo ip link add link eth0 name eth0.102 type vlan id 102 
# sudo ifconfig eth0.102 up 
# sudo dhclient eth0.102