How do I backup data of Cassandra nodes running in Docker?

I hope to receive some tips and assistance. I have three virtual machines running Ubuntu 22.04, and each one has Cassandra deployed via docker-compose, forming a cluster. My current task is to organize an automatic backup of all keyspaces and schema to a remote server. Has anyone already solved a similar problem? I cannot find any official information on this matter. I currently see it in the following form, but I'm not sure if it's efficient:

docker exec -it container_id /bin/bash
    nodetool snapshot
    docker cp container_id:/data/keyspace_name/table_name-UUID/snapshots/snapshot_name /path/on/host/