VIP Keepalived

Set up a virtual IP on proxmox cluster

apt update
apt install keepalived -y

nano /etc/keepalived/keepalived.conf

run this on all nodes

on the master node add this to the keepalived.conf

vrrp_instance VI_1 {
state MASTER
interface vmbr0
virtual_router_id 51
priority 150
advert_int 1

authentication {
    auth_type PASS
    auth_pass supersecret
}

virtual_ipaddress {
    192.168.1.50/24
}

}

on the slave nodes add this to keepalived.conf

vrrp_instance VI_1 {
state BACKUP
interface vmbr0
virtual_router_id 51
priority 100
advert_int 1

authentication {
    auth_type PASS
    auth_pass supersecret
}

virtual_ipaddress {
    192.168.1.50/24
}

}

Must match exactly:

• virtual_router_id
• auth_pass
• IP + subnet

Enable and start keepalived on nodes

systemctl enable –now keepalived