get DOCKER_IMAGE env var

csst_common/io.py

@@ -99,7 +99,7 @@ def generate_meta(**kwargs) -> dict:
         else:
             raise KeyError(f"未知的meta参数: {k}")
     # automatically set docker_image, build, and created_date
-    meta["docker_image"] = os.getenv("PIPELINE_ID", default=None)
+    meta["docker_image"] = os.getenv("DOCKER_IMAGE", default=None)
     meta["build"] = os.getenv("BUILD", default=None)
     meta["prc_date"] = now()
     meta["data_uuid"] = str(uuid.uuid4())