I try to describe my situation and ask for help if someone had a similar experience.
I deploy containers on CoreOS hosts created by ansible. There is some application in container that store data in docker data container. This maybe mysql database files or sqlite database files. What would you do with this data containers to avoid data loss in case of damage CoreOS host or destroy and re-deploy this host?
We can mount /var/lib/docker to CoreOS host by NFS.
We can continous backup data in docker data containers by backup containers.
What would you do in such a situation?