Tune.xml.j2

<?xml version="1.0" encoding="UTF-8"?>
<Root>
        <Tune>
{% if ansible_memory_mb.real.total >= 15000 %}
                <HeapSize>8000M</HeapSize>
{% elif ( ansible_memory_mb.real.total >= 7000 ) %}
                <HeapSize>4000M</HeapSize>
{% else %}
                <HeapSize>2000M</HeapSize>
{% endif %}
                <GarbageCollector>${com.wowza.wms.TuningGarbageCollectorG1Default}</GarbageCollector>
                <VMOptions>
                        <VMOption>-server</VMOption>
                        <VMOption>-Djava.net.preferIPv4Stack=true</VMOption>
                </VMOptions>
        </Tune>
</Root>