vincbeck commented on code in PR #40894:
URL: https://github.com/apache/airflow/pull/40894#discussion_r1684707710


##########
airflow/__main__.py:
##########
@@ -55,6 +55,17 @@ def main():
         conf = write_default_airflow_configuration_if_needed()
         if args.subcommand in ["webserver", "internal-api", "worker"]:
             write_webserver_configuration_if_needed(conf)
+    if conf.getboolean("core", "database_access_isolation", fallback=False):
+        if args.subcommand in ["worker", "dag-processor", "triggerer", "run"]:
+            if "AIRFLOW__DATABASE__SQL_ALCHEMY_CONN" in os.environ:
+                # make sure that the DB is not available for the components 
that should not access it
+                del os.environ["AIRFLOW__DATABASE__SQL_ALCHEMY_CONN"]
+                conf.set("database", "sql_alchemy_conn", "none://")
+        else:
+            from airflow.api_internal.internal_api_call import 
InternalApiConfig

Review Comment:
   nit
   
   ```suggestion
           else:
               # Trusted components
               from airflow.api_internal.internal_api_call import 
InternalApiConfig
   ```



##########
airflow/__main__.py:
##########
@@ -55,6 +55,17 @@ def main():
         conf = write_default_airflow_configuration_if_needed()
         if args.subcommand in ["webserver", "internal-api", "worker"]:
             write_webserver_configuration_if_needed(conf)
+    if conf.getboolean("core", "database_access_isolation", fallback=False):
+        if args.subcommand in ["worker", "dag-processor", "triggerer", "run"]:
+            if "AIRFLOW__DATABASE__SQL_ALCHEMY_CONN" in os.environ:

Review Comment:
   nit
   
   ```suggestion
           if args.subcommand in ["worker", "dag-processor", "triggerer", 
"run"]:
               # Untrusted components
               if "AIRFLOW__DATABASE__SQL_ALCHEMY_CONN" in os.environ:
   ```



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