self-hosting/roles/keepalived-hcloud/templates/keepalived.conf.j2

vrrp_script check_nginx {
    script /etc/keepalived/check_nginx.sh
    interval 3
    fall 5
    rise 1
}

vrrp_instance VI_1 {
{% if inventory_hostname == groups['kube-node'][0] %}
	state MASTER
{% else %}
    state BACKUP
{% endif %}
    priority 100
    interface eth0
    virtual_router_id 50

    unicast_src_ip {{ hostvars[inventory_hostname]['ipv4'] }}
    unicast_peer {
{% for host in (groups['kube-node']) %}
{% if host != inventory_hostname %}
		{{ hostvars[host]['ipv4'] }}
{% endif %}
{% endfor %}
    }

    authentication {
        auth_type PASS
        auth_pass "{{ keepalived_shared_secret }}"
    }

    virtual_ipaddress {
        {{ floating_ip }}
    }

    track_script {
        chk_haproxy
    }

    notify /etc/keepalived/hcloud_failover.py
}