Now to Create a Virtual IP also called a Floating IP:
The guide doesn’t have you add nic=eno### to this command, but it failed for me if I didn’t use it.
You can find your device number via the following command
cat /etc/sysconfig/network-scripts/ifcfg-e* | grep DEVICE
Mine is eno16777984 so this is my example command.
UPDATE : change-centos-7-eno-back-to-eth0
pcs resource create virtual_ip ocf:heartbeat:IPaddr2 ip=192.168.1.30 cidr_netmask=32 nic=eno16777984 op monitor interval=30s
pcs resource create virtual_ip ocf:heartbeat:IPaddr2 ip=192.168.1.30 cidr_netmask=32 nic=eth0 op monitor interval=30s
Make sure it started using the following command:
pcs cluster start --all
pcs status resources
pcs constraint location virtual_ip prefers node1