Reorganized for new stable/waypoint versioning design.

snapshot-controller/versions/v8/README.md

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+# Snapshot Controller
+
+The snapshot controller is a Kubernetes component that manages the lifecycle of volume snapshots. It works in conjunction with CSI drivers to enable backup and restore functionality for persistent volumes.
+
+## Architecture
+
+The snapshot functionality in Kubernetes is split into two components:
+- **Snapshot Controller** (this service): Cluster-wide controller that manages VolumeSnapshot resources
+- **CSI Snapshotter Sidecar**: Deployed with each CSI driver (e.g., Longhorn) to perform actual snapshot operations
+
+## Installation
+
+This service is installed automatically by Wild Cloud when setting up cluster services. It deploys:
+- The snapshot-controller deployment (2 replicas with leader election)
+- Required RBAC permissions
+- VolumeSnapshot CRDs (if not already present)
+
+## Dependencies
+
+- Requires a CSI driver with snapshot support (e.g., Longhorn)
+- Requires VolumeSnapshot CRDs (included with this service)
+
+## Verification
+
+After installation, verify the controller is running:
+```bash
+kubectl get pods -n kube-system | grep snapshot-controller
+kubectl api-resources | grep snapshot
+```
+
+## Usage
+
+Once installed, you can create VolumeSnapshots for any PVC managed by a CSI driver:
+```yaml
+apiVersion: snapshot.storage.k8s.io/v1
+kind: VolumeSnapshot
+metadata:
+  name: my-snapshot
+  namespace: default
+spec:
+  volumeSnapshotClassName: longhorn-snapshot-class
+  source:
+    persistentVolumeClaimName: my-pvc
+```
+
+## References
+
+- [Kubernetes CSI Snapshot Documentation](https://kubernetes-csi.github.io/docs/snapshot-restore-feature.html)
+- [External Snapshotter GitHub](https://github.com/kubernetes-csi/external-snapshotter)