Expose storage-version migrator feature flag in operator helm chart

Adds operator.features.storageVersionMigrator (default true) plus the
ENABLE_STORAGE_VERSION_MIGRATOR env var wiring in the deployment
template, mirroring the existing server/registry/virtualMCP pattern.
Helm docs regenerated.

Admins who run kube-storage-version-migrator externally can disable
the in-operator controller by setting this flag to false.

Part of #4969.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: ChrisJBurns

deploy/charts/operator/README.md

@@ -46,7 +46,7 @@ The command removes all the Kubernetes components associated with the chart and
 |-----|------|---------|-------------|
 | fullnameOverride | string | `"toolhive-operator"` | Provide a fully-qualified name override for resources |
 | nameOverride | string | `""` | Override the name of the chart |
-| operator | object | `{"affinity":{},"autoscaling":{"enabled":false,"maxReplicas":100,"minReplicas":1,"targetCPUUtilizationPercentage":80},"containerSecurityContext":{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"readOnlyRootFilesystem":true,"runAsNonRoot":true,"runAsUser":1000,"seccompProfile":{"type":"RuntimeDefault"}},"defaultImagePullSecrets":[],"env":[],"features":{"experimental":false},"gc":{"gogc":75,"gomemlimit":"110MiB"},"image":"ghcr.io/stacklok/toolhive/operator:v0.28.3","imagePullPolicy":"IfNotPresent","imagePullSecrets":[],"leaderElectionRole":{"binding":{"name":"toolhive-operator-leader-election-rolebinding"},"name":"toolhive-operator-leader-election-role","rules":[{"apiGroups":[""],"resources":["configmaps"],"verbs":["get","list","watch","create","update","patch","delete"]},{"apiGroups":["coordination.k8s.io"],"resources":["leases"],"verbs":["get","list","watch","create","update","patch","delete"]},{"apiGroups":["events.k8s.io"],"resources":["events"],"verbs":["create","patch"]}]},"livenessProbe":{"httpGet":{"path":"/healthz","port":"health"},"initialDelaySeconds":15,"periodSeconds":20},"nodeSelector":{},"podAnnotations":{},"podLabels":{},"podSecurityContext":{"runAsNonRoot":true},"ports":[{"containerPort":8080,"name":"metrics","protocol":"TCP"},{"containerPort":8081,"name":"health","protocol":"TCP"}],"proxyHost":"0.0.0.0","rbac":{"allowedNamespaces":[],"scope":"cluster"},"readinessProbe":{"httpGet":{"path":"/readyz","port":"health"},"initialDelaySeconds":5,"periodSeconds":10},"replicaCount":1,"resources":{"limits":{"cpu":"500m","memory":"128Mi"},"requests":{"cpu":"10m","memory":"64Mi"}},"serviceAccount":{"annotations":{},"automountServiceAccountToken":true,"create":true,"labels":{},"name":"toolhive-operator"},"tolerations":[],"toolhiveRunnerImage":"ghcr.io/stacklok/toolhive/proxyrunner:v0.28.3","vmcpImage":"ghcr.io/stacklok/toolhive/vmcp:v0.28.3","volumeMounts":[],"volumes":[]}` | All values for the operator deployment and associated resources |
+| operator | object | `{"affinity":{},"autoscaling":{"enabled":false,"maxReplicas":100,"minReplicas":1,"targetCPUUtilizationPercentage":80},"containerSecurityContext":{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"readOnlyRootFilesystem":true,"runAsNonRoot":true,"runAsUser":1000,"seccompProfile":{"type":"RuntimeDefault"}},"defaultImagePullSecrets":[],"env":[],"features":{"experimental":false,"storageVersionMigrator":true},"gc":{"gogc":75,"gomemlimit":"110MiB"},"image":"ghcr.io/stacklok/toolhive/operator:v0.28.3","imagePullPolicy":"IfNotPresent","imagePullSecrets":[],"leaderElectionRole":{"binding":{"name":"toolhive-operator-leader-election-rolebinding"},"name":"toolhive-operator-leader-election-role","rules":[{"apiGroups":[""],"resources":["configmaps"],"verbs":["get","list","watch","create","update","patch","delete"]},{"apiGroups":["coordination.k8s.io"],"resources":["leases"],"verbs":["get","list","watch","create","update","patch","delete"]},{"apiGroups":["events.k8s.io"],"resources":["events"],"verbs":["create","patch"]}]},"livenessProbe":{"httpGet":{"path":"/healthz","port":"health"},"initialDelaySeconds":15,"periodSeconds":20},"nodeSelector":{},"podAnnotations":{},"podLabels":{},"podSecurityContext":{"runAsNonRoot":true},"ports":[{"containerPort":8080,"name":"metrics","protocol":"TCP"},{"containerPort":8081,"name":"health","protocol":"TCP"}],"proxyHost":"0.0.0.0","rbac":{"allowedNamespaces":[],"scope":"cluster"},"readinessProbe":{"httpGet":{"path":"/readyz","port":"health"},"initialDelaySeconds":5,"periodSeconds":10},"replicaCount":1,"resources":{"limits":{"cpu":"500m","memory":"128Mi"},"requests":{"cpu":"10m","memory":"64Mi"}},"serviceAccount":{"annotations":{},"automountServiceAccountToken":true,"create":true,"labels":{},"name":"toolhive-operator"},"tolerations":[],"toolhiveRunnerImage":"ghcr.io/stacklok/toolhive/proxyrunner:v0.28.3","vmcpImage":"ghcr.io/stacklok/toolhive/vmcp:v0.28.3","volumeMounts":[],"volumes":[]}` | All values for the operator deployment and associated resources |
 | operator.affinity | object | `{}` | Affinity settings for the operator pod |
 | operator.autoscaling | object | `{"enabled":false,"maxReplicas":100,"minReplicas":1,"targetCPUUtilizationPercentage":80}` | Configuration for horizontal pod autoscaling |
 | operator.autoscaling.enabled | bool | `false` | Enable autoscaling for the operator |
@@ -57,6 +57,7 @@ The command removes all the Kubernetes components associated with the chart and
 | operator.defaultImagePullSecrets | list | `[]` | List of image pull secrets that the operator applies as defaults to every workload it spawns (proxy runners, vMCP servers, registry API, etc.). Per-CR `imagePullSecrets` take precedence on name collisions; chart-level entries are appended additively. The operator parses these once at startup from the TOOLHIVE_DEFAULT_IMAGE_PULL_SECRETS environment variable. The Secrets must exist in the namespace where each workload is created.  Each entry may be either a plain string (the Secret name) or an object with a `name` field, e.g.:   defaultImagePullSecrets:     - regcred     - name: otherscred The two shapes are equivalent; the object form matches `operator.imagePullSecrets` above for convenience. |
 | operator.env | list | `[]` | Environment variables to set in the operator container. Supported toolhive-specific variables include: - TOOLHIVE_SKIP_UPDATE_CHECK: set to "true" to disable the operator's   periodic update check against the ToolHive update API. Also disables   the usage-metrics collection that is gated on the same check. |
 | operator.features.experimental | bool | `false` | Enable experimental features |
+| operator.features.storageVersionMigrator | bool | `true` | Enable the StorageVersionMigrator controller, which auto-cleans status.storedVersions on opted-in toolhive.stacklok.dev CRDs so a future release can drop deprecated versions (e.g. v1alpha1) without orphaning etcd objects. Leave this on unless you are running kube-storage-version-migrator externally. This automatically sets ENABLE_STORAGE_VERSION_MIGRATOR environment variable. |
 | operator.gc | object | `{"gogc":75,"gomemlimit":"110MiB"}` | Go memory limits and garbage collection percentage for the operator container |
 | operator.gc.gogc | int | `75` | Go garbage collection percentage for the operator container |
 | operator.gc.gomemlimit | string | `"110MiB"` | Go memory limits for the operator container |

deploy/charts/operator/templates/deployment.yaml

@@ -68,6 +68,8 @@ spec:
             value: "true"
           - name: ENABLE_EXPERIMENTAL_FEATURES
             value: {{ .Values.operator.features.experimental | quote }}
+          - name: ENABLE_STORAGE_VERSION_MIGRATOR
+            value: {{ .Values.operator.features.storageVersionMigrator | quote }}
           {{- if eq .Values.operator.rbac.scope "namespace" }}
           - name: WATCH_NAMESPACE
             value: "{{ .Values.operator.rbac.allowedNamespaces | join "," }}"

deploy/charts/operator/values.yaml

@@ -8,6 +8,13 @@ operator:
   features:
     # -- Enable experimental features
     experimental: false
+    # -- Enable the StorageVersionMigrator controller, which auto-cleans
+    # status.storedVersions on opted-in toolhive.stacklok.dev CRDs so a
+    # future release can drop deprecated versions (e.g. v1alpha1) without
+    # orphaning etcd objects. Leave this on unless you are running
+    # kube-storage-version-migrator externally.
+    # This automatically sets ENABLE_STORAGE_VERSION_MIGRATOR environment variable.
+    storageVersionMigrator: true
   # -- Number of replicas for the operator deployment
   replicaCount: 1