gistfile1.txt

{% set image = salt['pillar.get']('localhost:5000/docker/{{pillar ["app"] }}/latest') -%}
{% set image_installs = salt['mine.get_docker'](interfaces="eth0") -%}


{% for image_name, info in image_installs.items() if 'ipv4' in info %}
       {% for ip_ in info['ipv4'][pillar ['port'] ] %}

        {% set ipaddr = ip_ %}

         proxy_pass        http://{{ipaddr}};
      proxy_read_timeout  90;
           {%break%}
        {% endfor %}
       {% endfor %}