log to file

.gitignore

@@ -12,3 +12,4 @@ result*
 *screenshot.png
 output
 todo
+log/

panel/default.nix

@@ -31,6 +31,7 @@ in
         DATABASE_URL = "sqlite:///${toString ./src}/db.sqlite3";
         # locally: use a fixed relative reference, so we can use our newest files without copying to the store
         REPO_DIR = toString ../.;
+        LOGGING_DIR = "../log";
       };
     shellHook = ''
       ln -sf ${sources.htmx}/dist/htmx.js src/panel/static/htmx.min.js

panel/nix/configuration.nix

@@ -30,6 +30,7 @@ let
       (builtins.toFile "extra-settings.py" cfg.extra-settings)
     ];
     REPO_DIR = import ../../launch/tf-env.nix { inherit lib pkgs; };
+    LOGGING_DIR = "/var/log/${name}";
   };
 
   python-environment = pkgs.python3.withPackages (

panel/src/panel/settings.py

@@ -175,6 +175,9 @@ COMPRESS_PRECOMPILERS = [
 
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
 
+logging_dir = env["LOGGING_DIR"]
+os.makedirs(logging_dir, mode=0o700, exist_ok=True)
+
 LOGGING = {
     "version": 1,
     "disable_existing_loggers": False,
@@ -209,10 +212,15 @@ LOGGING = {
             "filters": ["require_debug_false"],
             "class": "django.utils.log.AdminEmailHandler",
         },
+        "file": {
+            "level": "INFO",
+            "class": "logging.FileHandler",
+            "filename": f"{logging_dir}/info.log",
+        },
     },
     "loggers": {
         "django": {
-            "handlers": ["console", "mail_admins"],
+            "handlers": ["console", "mail_admins", "file"],
             "level": "INFO",
         },
         "django.server": {