Check if awslogs_stream_prefix already ends with container_name

Check if prefix exists before checking endswith

Check if container name exists before checking endswith

Add / to endswith

Fix indent

Apply pre-commit changes

providers/src/airflow/providers/amazon/aws/operators/ecs.py

@@ -661,7 +661,13 @@ def _aws_logs_enabled(self):
         return self.awslogs_group and self.awslogs_stream_prefix
 
     def _get_logs_stream_name(self) -> str:
-        return f"{self.awslogs_stream_prefix}/{self.container_name}/{self._get_ecs_task_id(self.arn)}"
+        if (
+            self.awslogs_stream_prefix
+            and self.container_name
+            and not self.awslogs_stream_prefix.endswith(f"/{self.container_name}")
+        ):
+            return f"{self.awslogs_stream_prefix}/{self.container_name}/{self._get_ecs_task_id(self.arn)}"
+        return f"{self.awslogs_stream_prefix}/{self._get_ecs_task_id(self.arn)}"
 
     def _get_task_log_fetcher(self) -> AwsTaskLogFetcher:
         if not self.awslogs_group: