add snapshot create delete capability

README.md

@@ -69,6 +69,22 @@ The current version is: **`v3.6.0`**.
 
 ## Installing to Kubernetes
 
+Follow these steps to deploy the cloudscale.ch CSI driver to your Kubernetes cluster.
+
+### Prerequisites for Snapshot Support
+
+To use CSI snapshots with this driver, your cluster must have the VolumeSnapshot CRDs and the snapshot controller installed.
+
+Note: Some Kubernetes distributions already include these CRDs and controllers. You only need to apply them manually if your cluster does not provide them.
+
+Install the snapshot resources using kustomize (recommended):
+```
+kubectl apply -k https://github.com/kubernetes-csi/external-snapshotter/client/config/crd?ref=v8.4.0
+kubectl apply -k https://github.com/kubernetes-csi/external-snapshotter/deploy/kubernetes/snapshot-controller?ref=v8.4.0
+# setup volumesnapshotclass in your cluster
+kubectl apply -f examples/kubernetes/volume-snapshots/volumesnapshotclass.yaml
+```
+
 ### Kubernetes Compatibility
 
 The following table describes the required cloudscale.ch driver version per

charts/csi-cloudscale/templates/rbac.yaml

@@ -16,12 +16,9 @@ rules:
   - apiGroups: [""]
     resources: ["events"]
     verbs: ["list", "watch", "create", "update", "patch"]
-  - apiGroups: ["snapshot.storage.k8s.io"]
-    resources: ["volumesnapshots"]
-    verbs: [ "get", "list", "watch", "update" ]
-  - apiGroups: ["snapshot.storage.k8s.io"]
-    resources: ["volumesnapshotcontents"]
-    verbs: ["get", "list"]
+  - apiGroups: [ "coordination.k8s.io" ]
+    resources: [ "leases" ]
+    verbs: [ "get", "list", "watch", "create", "update", "patch", "delete" ]
   - apiGroups: [ "storage.k8s.io" ]
     resources: [ "csinodes" ]
     verbs: [ "get", "list", "watch" ]
@@ -52,6 +49,27 @@ rules:
 ---
 kind: ClusterRole
 apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: {{ include "csi-cloudscale.driver-name" . }}-snapshotter-role
+rules:
+  - apiGroups: ["snapshot.storage.k8s.io"]
+    resources: ["volumesnapshots"]
+    verbs: [ "get", "list", "watch", "update" ]
+  - apiGroups: ["snapshot.storage.k8s.io"]
+    resources: ["volumesnapshotcontents"]
+    verbs: [ "get", "list", "watch", "update", "patch" ]
+  - apiGroups: [ "snapshot.storage.k8s.io" ]
+    resources: [ "volumesnapshotcontents/status" ]
+    verbs: [ "update", "patch" ]
+  - apiGroups: [ "snapshot.storage.k8s.io" ]
+    resources: [ "volumesnapshotclasses" ]
+    verbs: [ "get", "list", "watch" ]
+  - apiGroups: [""]
+    resources: ["events"]
+    verbs: ["list", "watch", "create", "update", "patch"]
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
 metadata:
   name: {{ include "csi-cloudscale.driver-name" . }}-resizer-role
 rules:
@@ -99,6 +117,19 @@ roleRef:
 ---
 kind: ClusterRoleBinding
 apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: {{ include "csi-cloudscale.driver-name" . }}-snapshotter-binding
+subjects:
+  - kind: ServiceAccount
+    name: {{ include "csi-cloudscale.controller-service-account-name" . }}
+    namespace: {{ .Release.Namespace }}
+roleRef:
+  kind: ClusterRole
+  name: {{ include "csi-cloudscale.driver-name" . }}-snapshotter-role
+  apiGroup: rbac.authorization.k8s.io
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
 metadata:
   name: {{ include "csi-cloudscale.driver-name" . }}-resizer-binding
 subjects:

charts/csi-cloudscale/templates/statefulset.yaml

@@ -72,6 +72,21 @@ spec:
           volumeMounts:
             - name: socket-dir
               mountPath: /var/lib/csi/sockets/pluginproxy/
+        - name: csi-snapshotter
+          image: "{{ .Values.snapshotter.image.registry }}/{{ .Values.snapshotter.image.repository }}:{{ .Values.snapshotter.image.tag }}"
+          args:
+            - "--csi-address=$(CSI_ENDPOINT)"
+            - "--v={{ .Values.snapshotter.logLevelVerbosity }}"
+          {{- with .Values.controller.resources }}
+          resources:
+{{ toYaml . | indent 12 }}
+          {{- end }}
+          env:
+            - name: CSI_ENDPOINT
+              value: unix:///var/lib/csi/sockets/pluginproxy/csi.sock
+          volumeMounts:
+            - name: socket-dir
+              mountPath: /var/lib/csi/sockets/pluginproxy/
         - name: csi-cloudscale-plugin
           image: "{{ .Values.controller.image.registry }}/{{ .Values.controller.image.repository }}:{{ .Values.controller.image.tag }}"
           args :

charts/csi-cloudscale/values.yaml

@@ -79,6 +79,23 @@ resizer:
 #      cpu: 100m
 #      memory: 128Mi
 
+
+
+snapshotter:
+  image:
+    registry: registry.k8s.io
+    repository: sig-storage/csi-snapshotter
+    tag: v8.4.0
+    pullPolicy: IfNotPresent
+  logLevelVerbosity: "5"
+  resources: {}
+#     limits:
+#      cpu: 100m
+#      memory: 128Mi
+#     requests:
+#      cpu: 100m
+#      memory: 128Mi
+
 controller:
   replicas: 1
   image: