VolSync asynchronously replicates Kubernetes persistent volumes between clusters using either rsync or rclone. It also supports creating backups of persistent volumes via restic.

The fastest way to get started is to install VolSync in a kind cluster:

• Install kind if you don't already have it:
  $ go install sigs.k8s.io/kind@latest
• Use our convenient script to start a cluster, install the CSI hostpath driver, and the snapshot controller.
  $ ./hack/setup-kind-cluster.sh
• Install the latest release via Helm
  $ helm repo add backube https://backube.github.io/helm-charts/
$ helm install --create-namespace -n volsync-system volsync backube/volsync
• See the usage instructions for information on setting up replication relationships.

More detailed information on installation and usage can be found in the official documentation.

We're also working on a command line interface to VolSync via a kubectl plugin. To try that out:

make cli
cp bin/kubectl-volsync /usr/local/bin/

NOTE: volsync plugin is being actively developed. Options, flags, and names are likely to be updated frequently. PRs and new issues are welcome!

Available commands:

kubectl volsync start-replication
kubectl volsync set-replication
kubectl volsync continue-replication
kubectl volsync remove-replication

Try the current examples:

• single cluster cross namespace example
• multiple cluster example

• VolSync documentation
• Changelog
• Contributing guidelines
• Organization code of conduct

This project is licensed under the GNU AGPL 3.0 License with the following exceptions:

• The files within the api/* directories are additionally licensed under Apache License 2.0. This is to permit VolSync's CustomResource types to be used by a wider range of software.
• Documentation is made available under the Creative Commons Attribution-ShareAlike 4.0 International license (CC BY-SA 4.0)