chore: Add support for MAINTENANCE_MODE

aiarena/core/middleware.py

@@ -0,0 +1,13 @@
+from django.http import HttpResponse
+from django.shortcuts import render
+
+
+def maintenance(get_response):
+    def middleware(request):
+        response = HttpResponse(
+            render(request, "maintenance.html"),
+            status=200,
+        )
+        return response
+
+    return middleware

aiarena/frontend/templates/maintenance.html

@@ -0,0 +1,15 @@
+{% extends "base.html" %}
+
+{% block header %}{% endblock %}
+{% block sidebar %}{% endblock %}
+
+{% block content %}
+    <div class="divider"><span></span><span><h2>AI Arena is currently under maintenance</h2></span><span></span></div>
+    <div id="inner_content">
+        <center>
+            AI Arena is currently under scheduled technical maintenance. <br />
+            We are upgrading our systems to improve site performance and reliability.<br />
+            Please check back in a while. It shouldn't take longer than 60 minutes.
+        </center>
+    </div>
+{% endblock %}

aiarena/settings.py

@@ -454,4 +454,11 @@ def get_discord_client_secret():
 MATCH_TAG_PER_MATCH_LIMIT = 32
 
 # If a primary field isn't specified on models, add an auto ID field. This affects all loaded modules.
-DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
+DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
+
+def str_to_bool(s):
+    return s.lower() in ("yes", "y", "true", "1")
+
+MAINTENANCE_MODE = str_to_bool(os.getenv("MAINTENANCE_MODE", "False"))
+if MAINTENANCE_MODE:
+    MIDDLEWARE = ["aiarena.core.middleware.maintenance"] + MIDDLEWARE