CSI compatibility mode

charts/internal/seed-controlplane/charts/stackit-blockstorage-csi-driver/templates/csi-snapshot-controller-poddisruptionbudget.yaml

@@ -1,3 +1,4 @@
+{{- if not .Values.csi.enableCompatibilityMode }}
 apiVersion: policy/v1
 kind: PodDisruptionBudget
 metadata:
@@ -13,3 +14,4 @@ spec:
       app: {{.Values.prefix}}-csi-snapshot-controller
       role: controller
   unhealthyPodEvictionPolicy: AlwaysAllow
+{{- end }}

charts/internal/seed-controlplane/charts/stackit-blockstorage-csi-driver/templates/csi-snapshot-controller-vpa.yaml

@@ -1,4 +1,4 @@
----
+{{- if not .Values.csi.enableCompatibilityMode }}
 apiVersion: autoscaling.k8s.io/v1
 kind: VerticalPodAutoscaler
 metadata:
@@ -15,3 +15,4 @@ spec:
     name: {{.Values.prefix}}-csi-snapshot-controller
   updatePolicy:
     updateMode: Auto
+{{- end }}

charts/internal/seed-controlplane/charts/stackit-blockstorage-csi-driver/templates/deployment-csi-driver-controller.yaml

@@ -52,6 +52,12 @@ spec:
         {{- end }}
         - --v=3
         - --provide-node-service=false
+        {{- if .Values.csi.enableCompatibilityMode }}
+        - --legacy-storage-mode=true
+        {{- end }}
+        {{- if .Values.csi.blockLegacyCreation }}
+        - --legacy-volume-creation=false
+        {{- end }}
         env:
         - name: CSI_ENDPOINT
           value: unix://{{ .Values.socketPath }}/csi.sock
@@ -69,7 +75,7 @@ spec:
 {{- end }}
         ports:
         - name: healthz
-          containerPort: 9808
+          containerPort: {{ .Values.healthzPort }}
           protocol: TCP
         livenessProbe:
           httpGet:
@@ -251,6 +257,7 @@ spec:
         args:
         - --probe-timeout=3m
         - --csi-address=/csi/csi.sock
+        - --health-port={{.Values.healthzPort}}
 {{- if .Values.resources.livenessProbe }}
         resources:
 {{ toYaml .Values.resources.livenessProbe | indent 10 }}

charts/internal/seed-controlplane/charts/stackit-blockstorage-csi-driver/templates/deployment-csi-snapshot-controller.yaml

@@ -1,3 +1,4 @@
+{{- if not .Values.csi.enableCompatibilityMode }}
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -70,3 +71,4 @@ spec:
                 path: token
               name: shoot-access-csi-snapshot-controller
               optional: false
+{{- end }}

charts/internal/seed-controlplane/charts/stackit-blockstorage-csi-driver/values.yaml

@@ -4,6 +4,12 @@ kubernetesVersion: 1.30.0
 prefix: stackit-blockstorage
 projectID: ""
 
+healthzPort: 9808
+
+csi:
+  enableCompatibilityMode: false
+  blockLegacyCreation: false
+
 images:
   csi-driver-stackit: image-repository:image-tag
   csi-provisioner: image-repository:image-tag
@@ -12,7 +18,6 @@ images:
   csi-resizer: image-repository:image-tag
   csi-liveness-probe: image-repository:image-tag
   csi-snapshot-controller: image-repository:image-tag
-  csi-snapshot-validation-webhook: image-repository:image-tag
 
 socketPath: /var/lib/csi/sockets/pluginproxy
 region: ""

charts/internal/shoot-system-components/charts/stackit-blockstorage-csi-driver/templates/daemonset.yaml

@@ -17,7 +17,11 @@ spec:
     metadata:
       annotations:
         checksum/configmap-cloud-provider-config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
-        node.gardener.cloud/wait-for-csi-node-stackit: block-storage.csi.stackit.cloud
+        {{- if eq .Values.driverName "cinder.csi.openstack.org" }}
+        node.gardener.cloud/wait-for-csi-node-openstack: {{ .Values.driverName }}
+        {{- else }}
+        node.gardener.cloud/wait-for-csi-node-stackit: {{ .Values.driverName }}
+        {{- end }}
       labels:
         node.gardener.cloud/critical-component: "true"
         app: {{ .Values.prefix }}-csi
@@ -48,6 +52,9 @@ spec:
         {{- end }}
         - --v=2
         - --provide-controller-service=false
+        {{- if .Values.csi.enableCompatibilityMode }}
+        - --legacy-storage-mode=true
+        {{- end }}
         env:
         - name: CSI_ENDPOINT
           value: unix://{{ .Values.socketPath }}
@@ -62,7 +69,7 @@ spec:
           allowPrivilegeEscalation: true
         ports:
         - name: healthz
-          containerPort: 9908
+          containerPort: {{ .Values.healthzPort }}
           protocol: TCP
         livenessProbe:
           httpGet:
@@ -94,7 +101,7 @@ spec:
         - name: ADDRESS
           value: {{ .Values.socketPath }}
         - name: DRIVER_REG_SOCK_PATH
-          value: /var/lib/kubelet/plugins/block-storage.csi.stackit.cloud/csi.sock
+          value: /var/lib/kubelet/plugins/{{ .Values.driverName }}/csi.sock
 {{- if .Values.resources.nodeDriverRegistrar }}
         resources:
 {{ toYaml .Values.resources.nodeDriverRegistrar | indent 10 }}
@@ -112,7 +119,7 @@ spec:
         args:
         - --probe-timeout=3m
         - --csi-address={{ .Values.socketPath }}
-        - --health-port=9908
+        - --health-port={{ .Values.healthzPort }}
 {{- if .Values.resources.livenessProbe }}
         resources:
 {{ toYaml .Values.resources.livenessProbe | indent 10 }}
@@ -130,7 +137,7 @@ spec:
           type: Directory
       - name: plugin-dir
         hostPath:
-          path: /var/lib/kubelet/plugins/block-storage.csi.stackit.cloud/
+          path: /var/lib/kubelet/plugins/{{ .Values.driverName }}/
           type: DirectoryOrCreate
       - name: registration-dir
         hostPath:

charts/internal/shoot-system-components/charts/stackit-blockstorage-csi-driver/values.yaml

@@ -3,6 +3,11 @@ driverName: block-storage.csi.stackit.cloud
 
 rescanBlockStorageOnResize: "true"
 
+healthzPort: 9908
+
+csi:
+  enableCompatibilityMode: false
+
 images:
   csi-driver-stackit: image-repository:image-tag
   csi-node-driver-registrar: image-repository:image-tag

go.mod

@@ -45,6 +45,7 @@ require (
 	k8s.io/utils v0.0.0-20260507154919-ff6756f316d2
 	sigs.k8s.io/controller-runtime v0.23.3
 	sigs.k8s.io/controller-runtime/tools/setup-envtest v0.0.0-20231015215740-bf15e44028f9
+	sigs.k8s.io/yaml v1.6.0
 )
 
 require (
@@ -53,6 +54,7 @@ require (
 	github.com/BurntSushi/toml v1.6.0 // indirect
 	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/sprig/v3 v3.3.0 // indirect
+	github.com/NYTimes/gziphandler v1.1.1 // indirect
 	github.com/PaesslerAG/gval v1.2.4 // indirect
 	github.com/PaesslerAG/jsonpath v0.1.2-0.20240726212847-3a740cf7976f // indirect
 	github.com/VictoriaMetrics/VictoriaLogs v1.36.2-0.20251008164716-21c0fb3de84d // indirect
@@ -83,13 +85,15 @@ require (
 	github.com/brunoga/deep v1.3.1 // indirect
 	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/coreos/go-semver v0.3.1 // indirect
 	github.com/cyphar/filepath-securejoin v0.6.1 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/elastic/crd-ref-docs v0.3.0 // indirect
 	github.com/elliotchance/orderedmap/v3 v3.1.0 // indirect
 	github.com/emicklei/go-restful/v3 v3.13.0 // indirect
 	github.com/evanphx/json-patch/v5 v5.9.11 // indirect
 	github.com/fatih/color v1.19.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/fluent/fluent-operator/v3 v3.7.0 // indirect
 	github.com/fsnotify/fsnotify v1.9.0 // indirect
 	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
@@ -113,6 +117,7 @@ require (
 	github.com/go-openapi/swag/typeutils v0.25.5 // indirect
 	github.com/go-openapi/swag/yamlutils v0.25.5 // indirect
 	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
+	github.com/go-test/deep v1.1.1 // indirect
 	github.com/gobuffalo/flect v1.0.3 // indirect
 	github.com/gobwas/glob v0.2.3 // indirect
 	github.com/goccy/go-yaml v1.19.2 // indirect
@@ -125,6 +130,7 @@ require (
 	github.com/google/gnostic-models v0.7.1 // indirect
 	github.com/google/pprof v0.0.0-20260402051712-545e8a4df936 // indirect
 	github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
+	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
@@ -134,6 +140,7 @@ require (
 	github.com/json-iterator/go v1.1.13-0.20220915233716-71ac16282d12 // indirect
 	github.com/klauspost/compress v1.18.6 // indirect
 	github.com/kubernetes-csi/external-snapshotter/client/v4 v4.2.0 // indirect
+	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/labstack/echo/v4 v4.15.1 // indirect
 	github.com/labstack/gommon v0.4.2 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
@@ -160,6 +167,7 @@ require (
 	github.com/prometheus/otlptranslator v1.0.0 // indirect
 	github.com/prometheus/procfs v0.20.1 // indirect
 	github.com/prometheus/sigv4 v0.3.0 // indirect
+	github.com/robfig/cron v1.2.0 // indirect
 	github.com/santhosh-tekuri/jsonschema/v6 v6.0.2 // indirect
 	github.com/shopspring/decimal v1.4.0 // indirect
 	github.com/sirupsen/logrus v1.9.4 // indirect
@@ -175,7 +183,12 @@ require (
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/zitadel/oidc/v3 v3.45.4 // indirect
 	github.com/zitadel/schema v1.3.2 // indirect
+	go.etcd.io/etcd/api/v3 v3.6.5 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.6.5 // indirect
+	go.etcd.io/etcd/client/v3 v3.6.5 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.63.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0 // indirect
 	go.opentelemetry.io/contrib/otelconf v0.23.0 // indirect
 	go.opentelemetry.io/otel v1.43.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.19.0 // indirect
@@ -218,6 +231,7 @@ require (
 	google.golang.org/protobuf v1.36.11 // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	helm.sh/helm/v4 v4.1.4 // indirect
@@ -228,14 +242,15 @@ require (
 	k8s.io/component-helpers v0.35.5 // indirect
 	k8s.io/gengo/v2 v2.0.0-20251215205346-5ee0d033ba5b // indirect
 	k8s.io/klog/v2 v2.140.0 // indirect
+	k8s.io/kms v0.35.5 // indirect
 	k8s.io/kube-aggregator v0.35.5 // indirect
 	k8s.io/kube-openapi v0.0.0-20260317180543-43fb72c5454a // indirect
 	k8s.io/metrics v0.35.5 // indirect
 	k8s.io/pod-security-admission v0.35.5 // indirect
+	sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.33.0 // indirect
 	sigs.k8s.io/controller-tools v0.20.1 // indirect
 	sigs.k8s.io/gateway-api v1.5.0 // indirect
 	sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
 	sigs.k8s.io/randfill v1.0.0 // indirect
 	sigs.k8s.io/structured-merge-diff/v6 v6.3.2 // indirect
-	sigs.k8s.io/yaml v1.6.0 // indirect
 )