File Storage · head to head
Ceph vs Dokku
Ceph
File Storage
Open source distributed storage providing object, block and file from one cluster
- From
- Free
- Rated
- -
Dokku
Cloud
Single-server platform that accepts a git push and runs Heroku buildpacks on Docker
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Ceph ceph assumes an operator who understands placement groups, CRUSH rules and recovery tuning, so organisations without dedicated storage staff routinely end up with a cluster that works until the first failure and then does not.; Dokku one maintainer accounts for nearly all human commit activity and the project records roughly 10,500 US dollars of annual income on Open Collective, which is not enough to fund a maintainer, so continuity rests on one person continuing to volunteer.
- They diverge on capability: Ceph covers RADOS object store, Dokku covers Git push deploy.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Ceph and Dokku actually diverge.
Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Ceph
- RADOS object store
- RADOS Gateway
- RBD block devices
- CephFS
- CRUSH placement
- Erasure coded pools
Only in Dokku
- Git push deploy
- Heroku buildpacks
- Datastore plugins
- Automatic certificates
- Zero downtime deploys
- Pluggable schedulers
What people use each for
The jobs each tool is most often brought in to do.
Ceph
- Backing a private cloud where virtual machine disks, shared filesystems and an S3 endpoint all need the same hardwarenot Dokku
- Growing past the point where a proprietary array upgrade costs more than a rack of commodity serversnot Dokku
- Research and media environments with petabytes of data and staff who can operate storagenot Dokku
- Providing an S3 endpoint on premises with multi site replication under your own controlnot Dokku
Dokku
- Running a dozen side projects and client applications on one virtual private server with Heroku style deploymentnot Ceph
- Moving off a managed platform when the monthly bill has grown faster than the traffic hasnot Ceph
- A consultancy that wants buildpack deployments without teaching every client team Kubernetesnot Ceph
- Keeping a legacy Procfile application alive on hardware you control after a managed platform deprecates its stacknot Ceph
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Ceph
- Ceph assumes an operator who understands placement groups, CRUSH rules and recovery tuning, so organisations without dedicated storage staff routinely end up with a cluster that works until the first failure and then does not.
- Small clusters are inefficient: three way replication means a third of raw capacity is usable, and erasure coding needs enough failure domains to be safe, so the economics only work above a certain size.
- Recovery and rebalancing generate heavy internal traffic, so a failed disk can degrade client latency across the cluster unless backfill is throttled correctly beforehand.
- Upgrades must follow a strict daemon order across monitors, managers, OSDs and gateways, and a mistake in that order on a live cluster is difficult to reverse.
- Because it is self hosted, every byte served to the internet is transit you pay for on your own links, so the free licence does not mean free egress and bandwidth planning becomes your problem rather than the providers.
Dokku
- One maintainer accounts for nearly all human commit activity and the project records roughly 10,500 US dollars of annual income on Open Collective, which is not enough to fund a maintainer, so continuity rests on one person continuing to volunteer.
- Dokku Pro asks 849 US dollars for a lifetime licence from a project with no disclosed legal entity behind the promise and no published refund terms, while the product is still described as in development at early bird pricing.
- Dokku is single-server by design, and the k3s scheduler that provides multi-node support is missing log retrieval, process inspection and content-based health checks, with a post-run hook the documentation says does not consistently fire.
- Supported operating systems are limited to Ubuntu 22.04 or 24.04 and Debian 11 or later, so organisations standardised on Red Hat, Rocky or Alma Linux cannot run it on their approved base image.
- Backups are separate commands per datastore plugin that you schedule yourself, with no unified snapshot, no point-in-time recovery and no tested restore path, so verifying that a restore works is entirely your responsibility.
Pricing, plan by plan
Ceph
Free- CephFree
- Full functionality, no capacity limit
- Object, block and file interfaces
- Community support via mailing list and Slack
Dokku
Free- DokkuFree
- MIT licensed, no usage limits
- Command line and SSH only
- All datastore and certificate plugins
- Dokku Pro$849/one-time
- Lifetime licence with free upgrades and no subscription
- Covers 1 production and 2 pre-production servers
- Web dashboard and JSON REST API
Which should you pick?
Choose Ceph if
- You need rados object store.
- You want to start without paying.
- You work on Linux.
- You also want rados gateway.
Choose Dokku if
- You need git push deploy.
- You want to start without paying.
- You work on Linux, Docker, CLI, Self-hosted.
- You also want heroku buildpacks.
Questions people ask
- Is Ceph or Dokku better?
- Neither clearly leads. Ceph starts at Free and Dokku at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Ceph or Dokku?
- Ceph starts at Free and Dokku at Free.
- Does Ceph or Dokku run on more platforms?
- Ceph runs on Linux. Dokku runs on Linux, Docker, CLI, Self-hosted.
- Can I use Ceph for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Ceph best used for?
- Ceph is most often used for backing a private cloud where virtual machine disks, shared filesystems and an s3 endpoint all need the same hardware, growing past the point where a proprietary array upgrade costs more than a rack of commodity servers, research and media environments with petabytes of data and staff who can operate storage, providing an s3 endpoint on premises with multi site replication under your own control. Of those, backing a private cloud where virtual machine disks, shared filesystems and an s3 endpoint all need the same hardware and growing past the point where a proprietary array upgrade costs more than a rack of commodity servers are not what Dokku is typically brought in for.
- What can Ceph do that Dokku cannot?
- Ceph covers RADOS object store, RADOS Gateway, RBD block devices, CephFS. Dokku covers Git push deploy, Heroku buildpacks, Datastore plugins, Automatic certificates.
Answered from the vendors’ own pages
Ceph: How many nodes do I need to start?
Three is the practical minimum for a replicated cluster with real fault tolerance, and most production advice starts at five once you account for maintenance windows.
Dokku: Is Dokku still maintained?
Yes. Version 0.38.27 shipped in August 2026 with roughly six releases in the preceding two months. The caveat is that one maintainer writes nearly all of it.
Ceph: Is it faster than a SAN?
Not on single stream latency. It wins on aggregate throughput and on growing without a forklift upgrade, which is a different property from raw speed.
Dokku: What does Dokku Pro give me over the free edition?
A web dashboard, a JSON REST API, git push over HTTPS, browser log tailing, team management and email support from the maintainers. It costs 849 US dollars once for one production and two pre-production servers.
Ceph: Can I buy support?
Yes. IBM sells IBM Storage Ceph and SUSE and others have offered supported builds; the upstream project itself is free.
Dokku: Can Dokku run across multiple servers?
Only through the k3s or Nomad schedulers. The k3s path is missing several commands and health check types, and the older Kubernetes scheduler is deprecated and no longer developed.
Ceph: Should I use it just for S3?
If object is all you need, a dedicated object store is simpler to run. Ceph earns its complexity when you need block and file as well.
Dokku: Will my Heroku application run on it unchanged?
Usually. Dokku runs the same buildpacks and reads a Procfile, so the application layer normally moves across. Add-ons, scaling behaviour and backups are the parts you have to rebuild.
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