Enable database health checks

CHANGELOG.rst

@@ -23,6 +23,8 @@ Changed
 * Based on Django 4.0
   * Use built-in Redis cache backend
   * Introduce PBKDF2-SHA1 password hashing
+* Persistent database connections are now health-checked as to not fail
+  requests
 
 Fixed
 ~~~~~

aleksis/core/settings.py

@@ -214,6 +214,7 @@ DATABASES = {
         "HOST": _settings.get("database.host", "127.0.0.1"),
         "PORT": _settings.get("database.port", "5432"),
         "CONN_MAX_AGE": _settings.get("database.conn_max_age", None),
+        "CONN_HEALTH_CHECK": True,
         "OPTIONS": _settings.get("database.options", {}),
     }
 }