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Signed-off-by: David Young <davidy@funkypenguin.co.nz>
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manuscript/docker-swarm/shared-storage-ceph.md
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title: Ceph cluster in Docker Swarm
description: Ceph provides persistent storage to your Docker Swarm cluster, supporting either rdb images for host volume mounts, or even fancy cephfs docker volumes.
---
# Shared Storage (Ceph)
While Docker Swarm is great for keeping containers running (_and restarting those that fail_), it does nothing for persistent storage. This means if you actually want your containers to keep any data persistent across restarts (_hint: you do!_), you need to provide shared storage to every docker node.