When you no longer need a Floating IP address, you can return it to the pool.
This way you won't be charged for the Floating IP anymore.
Note that this releases the IP address for use by any other user. If you want to use the same IP address, later on, you shouldn't return it as it can't be guaranteed that you'll get back the same IP address.
Method 1: Using the dashboard
- Log in to the dashboard
- Go to Networking -> IP Addresses
- Search for the IP address you want to release and click the button Release Floating IPs on the right corner of the IP address
Method 2: Using the CLI
- setup the OpenStack Command Line Interface
- Get the IDs for the Floating IPs you want to remove:
openstack floating ip list
Next, remove the Floating IP with the command:
openstack floating ip delete <id>