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Enhance csi-snapshot-controller README with troubleshooting guidance for CrashLoopBackOff issues and update kustomization.yaml to include deployment patch. This improves user experience and deployment reliability.

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Nikholas Pcenicni
2026-05-13 23:59:30 -04:00
parent 663ebc5001
commit 2bf7277917
3 changed files with 36 additions and 0 deletions
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14
clusters/noble/bootstrap/csi-snapshot-controller/README.md
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@@ -14,3 +14,17 @@ kubectl -n kube-system rollout status deploy/snapshot-controller --timeout=120s
```
After this, create or label a **VolumeSnapshotClass** for Longhorn (`velero.io/csi-volumesnapshot-class: "true"`) per `clusters/noble/bootstrap/velero/README.md`.
## Troubleshooting
If **`snapshot-controller`** is **CrashLoopBackOff** with exit **255** / **1**, check previous logs:
```bash
kubectl -n kube-system logs deploy/snapshot-controller --previous --tail=80
```
Typical causes:
1. **Volume Snapshot CRDs missing or wrong version** — re-apply: `kubectl apply -k clusters/noble/bootstrap/csi-snapshot-controller/crd`
2. **Volume group snapshot APIs** — this repo installs **GA** `VolumeSnapshot*` CRDs only. The controller overlay sets **`--feature-gates=CSIVolumeGroupSnapshot=false`** so the binary does not expect **VolumeGroupSnapshot*** CRDs.
3. **RBAC** — re-apply the controller kustomize (includes `rbac-snapshot-controller.yaml`).