WARNING: Found orphan containers (prometheus, grafana) for this project

[root@host135 milvus]# docker-compose down
WARNING: Found orphan containers (prometheus, grafana) for this project.
If you removed or renamed this service in your compose file, you can run this command with the --remove-orphans flag to clean it up.
Removing network milvus
WARNING: Network milvus not found.

[root@host135 milvus]# docker-compose down --remove-orphans
Removing orphan container "grafana"
Removing orphan container "prometheus"
Removing network milvus
WARNING: Network milvus not found.