Docker-Compose Single-Run

Add firstrun checks

Avoids running commands on firstrun
Add Docker-compose file

allows setup in a single docker-compose up command
Updated Readme re: docker-compose

Added stub detailing how to use the compose file.
Update README.md
Changed Entrypoint

Moved sanity checks to their own script, changed entrypoint logic
updated entrypoint

shynet/core/management/commands/sanity_checks.py

@@ -0,0 +1,49 @@
+import traceback
+import uuid
+
+from django.conf import settings
+from django.contrib.sites.models import Site
+from django.core.management.base import BaseCommand, CommandError
+from django.utils.crypto import get_random_string
+
+from django.db import DEFAULT_DB_ALIAS, connections
+from django.db.utils import OperationalError, ConnectionHandler
+from django.core.exceptions import ImproperlyConfigured
+
+from core.models import User
+
+
+class Command(BaseCommand):
+    help = "Performs sanity checks on the Shynet setup"
+
+    def check_migrations(self):
+        from django.db.migrations.executor import MigrationExecutor
+        try:
+            executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
+        except OperationalError:
+            # DB_NAME database not found?
+            return True
+        except ImproperlyConfigured:
+            # No databases are configured (or the dummy one)
+            return True
+        
+        if executor.migration_plan(executor.loader.graph.leaf_nodes()):
+            return True
+        
+        return False
+    
+    
+    def handle(self, *args, **options):
+        migration = self.check_migrations()
+
+        admin, hostname, whitelabel = [True] * 3
+        if not migration:
+            admin = not User.objects.all().exists()
+            hostname = not Site.objects.filter(domain__isnull=False).exclude(domain__exact="").exclude(domain__exact="example.com").exists()
+            whitelabel = not Site.objects.filter(name__isnull=False).exclude(name__exact="").exclude(name__exact="example.com").exists()
+
+        self.stdout.write(
+            self.style.SUCCESS(
+                f"{migration} {admin} {hostname} {whitelabel}"
+            )
+        )