From a177e21a013d45ea858ff252b2b5eb0dc33e7af2 Mon Sep 17 00:00:00 2001
From: Josh Hawkins <32435876+hawkeye217@users.noreply.github.com>
Date: Sun, 8 Mar 2026 15:42:42 -0500
Subject: [PATCH] fix environment_vars timing bug for EnvString substitution

FRIGATE_ENV_VARS is populated at module import time but was never
updated when environment_vars config section set new vars into
os.environ. This meant HA OS users setting FRIGATE_* vars via
environment_vars could not use them in EnvString fields.
---
 frigate/config/env.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/frigate/config/env.py b/frigate/config/env.py
index 6534ff411..db094a8af 100644
--- a/frigate/config/env.py
+++ b/frigate/config/env.py
@@ -24,8 +24,10 @@ EnvString = Annotated[str, AfterValidator(validate_env_string)]
 
 def validate_env_vars(v: dict[str, str], info: ValidationInfo) -> dict[str, str]:
     if isinstance(info.context, dict) and info.context.get("install", False):
-        for k, v in v.items():
-            os.environ[k] = v
+        for k, val in v.items():
+            os.environ[k] = val
+            if k.startswith("FRIGATE_"):
+                FRIGATE_ENV_VARS[k] = val
 
     return v