global_defs {
{% if keepalived_mail|default(False) %}
    notification_email {
        {{ keepalived_mail.mail_to }}
    }
    notification_email_from {{ keepalived_mail.mail_from }}
    smtp_server {{ keepalived_mail.smtp_server|default('localhost') }}
    smtp_connect_timeout {{ keepalived_mail.smtp_timeout|default(10) }}

{% endif %}
    script_user root
    enable_script_security
}

{% if keepalived_chk_proc_name|default(False) %}
# Fast, but does not work in container
vrrp_track_process track_{{ keepalived_chk_proc_name }} {
    process {{ keepalived_chk_proc_name }}
    quorum 1
    delay 2
    weight 10
}

# Slow, but should always work
vrrp_script chk_{{ keepalived_chk_proc_name }} {
    script "/bin/pidof {{ keepalived_chk_proc_name }}"
    interval {{ keepalived_chk_proc_interval|default(2) }}
    weight 10
}
{% endif %}

vrrp_instance {{ keepalived_instance_name|default('VI_1') }} {
    state {{ keepalived_state|default('BACKUP') }}
    interface {{ keepalived_interface|default('eth0') }}
    virtual_router_id {{ keepalived_router_id|default(100) }}
    priority {{ ((keepalived_state|default('BACKUP'))=='MASTER')|ternary('100', '95') }}
    advert_int {{ keepalived_advert_int|default(1) }}
    authentication {
        auth_type PASS
        auth_pass {{ keepalived_auth_pass|default(lookup('password'), './.keepalived.pw') }}
    }

    virtual_ipaddress {
        {% for keepalived_ip in keepalived_virtual_ipaddress %}{{ keepalived_ip }}
{% endfor %}
    }

{% if keepalived_chk_proc_name|default(False) %}
    # track_process track_{{ keepalived_chk_proc_name }} {
    #     {{ keepalived_chk_proc_name }}
    # }

    track_script {
        chk_{{ keepalived_chk_proc_name }}
    }
{% endif %}
}

! https://www.linux-magazin.de/ausgaben/2015/07/einfuehrung2/
! https://www.digitalocean.com/community/tutorials/how-to-set-up-highly-available-web-servers-with-keepalived-and-floating-ips-on-ubuntu-14-04