from .sls file:
{% for hostname in pillar %}
{% if hostname not in ('alpha', 'beta', 'gamma', 'master') %}
# set libvirt_uuid = pillar[hostname]['libvirt_uuid']
/etc/libvirt/qemu/{{ hostname }}.xml:
    file.managed:
        - template: jinja
        - user: root
        - group: root
        - mode: 600
        - source: salt://files/etc/libvirt/qemu/machine.xml
        - context:
            cpu_count: {{ pillar[hostname]['cpu_count'] }}
            hostname: {{ hostname }}
            image_format: {% if hostname in ('bloodhound1', 'placeholder') %}raw{% else %}qcow2{% endif %}
            libvirt_uuid: {{ pillar[hostname]['libvirt_uuid'] }}
            {% if pillar[hostname]['eth0_network'] == '10.0.0.0/24' %}
            master: '10.0.0.1'
            {% else %}
            master: '127.0.0.1'
            {% endif %}
            memory: {{ (pillar[hostname]['memory']*1024*1024)|int }}
            number: {% if pillar[hostname]['number'] < 10 %} '0' + number|string {% else %} number {% endif %}
{% endif %}
{% endfor %}



alternative for master:
master: {% if pillar[hostname]['eth0_network'] == '10.0.0.0/24' %} '10.0.0.1' {% else %} '127.0.0.1' {% endif %}