# backube/volsync

Asynchronous data replication for Kubernetes volumes

Repository: https://github.com/backube/volsync
Canonical: https://ross.abutalabs.com/products/volsync
Homepage: https://volsync.readthedocs.io
Language: Go
License: AGPL-3.0
License Family: copyleft
Topics: kubernetes, storage, kubernetes-operator, mirroring, csi, data-replication, data-protection, persistent-volume, disaster-recovery, data-migration
Last push: 2026-09-02T16:47:07+00:00

## Health v2 (maintenance only)
Score: 87/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 63, longevity 100
- inputs: {"age_days": 1861, "days_push": 0, "days_rel": 84, "gap_med": 96, "n_releases_24m": 8}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1012, forks 100 (observed 2026-09-03T02:15:09.523636+00:00)

## What it is
VolSync is a Kubernetes operator that asynchronously replicates persistent volumes between clusters using rsync or rclone, and creates volume backups via restic. It is installed via Helm and managed through custom resources.

## Use cases
- replicate kubernetes persistent volumes between clusters
- back up kubernetes pv data with restic
- disaster recovery for kubernetes storage
- migrate data between kubernetes clusters
- mirror persistent volume data asynchronously

## When to choose
- you run stateful workloads on Kubernetes and need cross-cluster volume replication
- you want scheduled backups of persistent volumes without manual snapshots
- you need asynchronous data protection that works with CSI-based storage

## When to avoid
- you need synchronous block-level replication with strict RPO=0
- you are not running Kubernetes
- you need a general-purpose backup tool outside cluster volumes

## Facets
- artifact type: service
- maturity: active
- function: backup, deployment, container-orchestration
- domain: self-hosted
- platform: go, cloud, self-hosted
- tags: kubernetes-operator, csi, persistent-volumes, disaster-recovery, data-replication, rsync, rclone, restic, storage, devops, containers, data-engineering, kubernetes, docker

## Member repositories
- backube/volsync (main) score 87

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:09.523636+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:12:01.622738+00:00, confidence not recorded.
  - readme: https://github.com/backube/volsync (fetched 2026-09-03T02:15:09.523636+00:00, sha 4f2d36f9791e)
- Data as of 2026-08-30T08:39:29.467469+00:00.