Add list of listening services to minion detail

Close #4 (closed)

salt_observer/management/commands/fetchlisteningservices.py

+from django.core.management.base import BaseCommand
+
+from salt_observer.models import Minion
+from . import ApiCommand
+
+
+class Command(ApiCommand, BaseCommand):
+    help = 'Fetch and save listening network services'
+
+    def save_services(self, api):
+        listening_services = api.get('network.netstat')
+
+        for minion_fqdn, services in listening_services.items():
+            minion = Minion.objects.filter(fqdn=minion_fqdn).first()
+
+            if not minion:
+                continue
+
+            minion_services = []
+            for service in services:
+                if service.get('state', '') == 'LISTEN':
+                    minion_services.append(service)
+
+            minion.update_data({'listening_services': minion_services})
+            minion.save()
+
+    def handle(self, *args, **kwargs):
+        api = super().handle(*args, **kwargs)
+        self.save_services(api)
+        api.logout()