test on settings API added + improves on nfproxy code including fail-open

backend/modules/nfproxy/firegex.py

@@ -48,7 +48,10 @@ class FiregexInterceptor:
         self.process = await asyncio.create_subprocess_exec(
             proxy_binary_path,
             stdout=asyncio.subprocess.PIPE, stdin=asyncio.subprocess.PIPE,
-            env={"NTHREADS": os.getenv("NTHREADS","1")},
+            env={
+                "NTHREADS": os.getenv("NTHREADS","1"),
+                "FIREGEX_NFQUEUE_FAIL_OPEN": "1" if self.srv.fail_open else "0",
+            },
         )
         line_fut = self.process.stdout.readuntil()
         try: