Create openstack port and bind it with one of management/storage/network node of your openstack cluster

create_port.sh

# A Small Script for creating a port in an internal network and binding it with one of control/neutron node

#### !!!! CAUTION !!!! #####
# DO NOT RUN THIS SCRIPT UNLESS YOU KNOW HOW EACH LINE IS GOING TO DO WITH YOUR OPENSTACK INSTALL
# YOU ARE ADVISED TO FIRST UNDERSTAND AND THAN RUN EACH LINE OF THIS SCRIPT INTERACTIVELY 
############################

NETWORK_NAME=demo1
SUBNET_NAME=demo1-net
MGMT_PORT_IP=172.16.2.10
BIND_HOST=control0

SUBNET_ID=$(openstack subnet show ${SUBNET_NAME} -f value -c id)

MGMT_PORT_ID=$(openstack port create --device-owner user:mustafa \
  --host=$BIND_HOST -c id -f value --network ${NETWORK_NAME} \
  --fixed-ip subnet=$SUBNET_ID,ip-address=$MGMT_PORT_IP mgmt-port)
  
MGMT_PORT_MAC=$(openstack port show -c mac_address -f value $MGMT_PORT_ID)


echo "

# Run following commands on control/management host 

docker exec -it openvswitch_vswitchd ovs-vsctl -- --may-exist add-port br-int o-hm1 -- set Interface o-hm1 type=internal -- set Interface o-hm1 external-ids:iface-status=active -- set Interface o-hm1 external-ids:attached-mac=$MGMT_PORT_MAC -- set Interface o-hm1 external-ids:iface-id=$MGMT_PORT_ID

echo ip link set dev o-hm1 address $MGMT_PORT_MAC
echo ip link set dev o-hm1 up
echo dhclient -v o-hm1 -cf dhclient.conf


"

# Destroy 
# docker exec -it openvswitch_vswitchd ovs-vsctl del-port br-int o-hm1