update caching on homepage, and add db checks to healthcheck

django_project/settings.py

@@ -148,6 +148,7 @@ TEMPLATES = [
                 "django.template.context_processors.request",
                 "django.contrib.auth.context_processors.auth",
                 "django.contrib.messages.context_processors.messages",
+                "common.context_processors.cache_settings",
             ],
         },
     },
@@ -294,6 +295,8 @@ SOCIALACCOUNT_EMAIL_AUTHENTICATION = False
 SOCIALACCOUNT_EMAIL_AUTHENTICATION_AUTO_CONNECT = False
 SOCIALACCOUNT_ONLY = False
 
+CACHE_TIMEOUT = 604800 # 1 week
+
 if DEBUG:
     CACHES = {
         "default": {
@@ -305,5 +308,6 @@ else:
         "default": {
             "BACKEND": "django.core.cache.backends.db.DatabaseCache",
             "LOCATION": "django_cache",
+            "TIMEOUT": 604800, # 1 week
         }
     }