Each failover IP address will need its own line in the configuration file. The configuration file is called “50-cloud-init.yaml” and is located in /etc/netplan.
Determine Ubuntu NIC interface
ifconfig
Connect to your server via SSH and run the following command:
Create Ubuntu configuration Network file
Edit Ubuntu Network file using your favorite editor like nano
nano /etc/netplan/50-cloud-init.yaml
Now, edit the file with the content below, replacing INTERFACE_NAME MAC_ADDRESS and FAILOVER_IP:
version: 2
ethernets:
INTERFACE_NAME:
dhcp4: true
match:
macaddress: MAC_ADDRESS
set-name: INTERFACE_NAME
addresses:
- FAILOVER_IP/32
Save and close the file. You can test the configuration with the following command:
Apply changes to Ubuntu Network
netplan apply
