Identify port by MAC

MAC=00:11:22:33:44:55
openstack port list --mac-address ${MAC}

SUBNET_ID=b07b6b7a-dfb2-4b58-82cb-1568da8990b3
openstack subnet show ${SUBNET_ID}

PROJECT_ID=701e329e-997d-4dfa-b0d0-27a51670ed2d
openstack project show ${PROJECT_ID}

Add security group to port

SERVER_ID=$(openstack server list --all-projects --name vm1-dev -c ID -f value)
openstack port list --server ${SERVER_ID}
PORT_ID=97006537-07b1-4d37-9e2e-3bb71ad23087
openstack port set --security-group 2060fc87-a1bf-4cf5-a497-f6c4b45cffcd ${PORT_ID}

Disable port security for a specific port

openstack port list --server ${SERVER_ID}

PORT_ID=fab25396-b3ac-477d-bbcd-7668a4e5f59c
openstack port set --no-security-group --disable-port-security ${PORT_ID}