feat: Configure namespace sync in helm chart

- Adds configuration fields and passes them to manager as flags.
- Documents configuration fields and their default values.

Author: dlipovetsky

charts/cluster-api-runtime-extensions-nutanix/README.md

@@ -73,6 +73,9 @@ A Helm chart for cluster-api-runtime-extensions-nutanix
 | image.repository | string | `"ghcr.io/nutanix-cloud-native/cluster-api-runtime-extensions-nutanix"` |  |
 | image.tag | string | `""` |  |
 | imagePullSecrets | list | `[]` | Optional secrets used for pulling the container image |
+| namespaceSync.enabled | bool | `true` |  |
+| namespaceSync.sourceNamespace | string | `""` |  |
+| namespaceSync.targetNamespaceLabelKey | string | `"caren.nutanix.com/namespace-sync"` |  |
 | nodeSelector | object | `{}` |  |
 | priorityClassName | string | `"system-cluster-critical"` | Priority class to be used for the pod. |
 | resources.limits.cpu | string | `"100m"` |  |

charts/cluster-api-runtime-extensions-nutanix/templates/deployment.yaml

@@ -30,6 +30,9 @@ spec:
         args:
         - --webhook-cert-dir=/runtimehooks-certs/
         - --defaults-namespace=$(POD_NAMESPACE)
+        - --namespacesync-enabled={{ .Values.namespaceSync.enabled }}
+        - --namespacesync-source-namespace={{ .Values.namespaceSync.sourceNamespace | default .Release.Namespace }}
+        - --namespacesync-target-namespace-label-key={{ .Values.namespaceSync.targetNamespaceLabelKey }}
         - --helm-addons-configmap={{ .Values.helmAddonsConfigMap }}
         - --cni.cilium.helm-addon.default-values-template-configmap-name={{ .Values.hooks.cni.cilium.helmAddonStrategy.defaultValueTemplateConfigMap.name }}
         - --nfd.helm-addon.default-values-template-configmap-name={{ .Values.hooks.nfd.helmAddonStrategy.defaultValueTemplateConfigMap.name }}

charts/cluster-api-runtime-extensions-nutanix/values.schema.json

@@ -401,6 +401,20 @@
         "imagePullSecrets": {
             "type": "array"
         },
+        "namespaceSync": {
+            "properties": {
+                "enabled": {
+                    "type": "boolean"
+                },
+                "sourceNamespace": {
+                    "type": "string"
+                },
+                "targetNamespaceLabelKey": {
+                    "type": "string"
+                }
+            },
+            "type": "object"
+        },
         "nodeSelector": {
             "properties": {},
             "type": "object"

charts/cluster-api-runtime-extensions-nutanix/values.yaml

@@ -89,6 +89,16 @@ selfHostedRegistry: true
 
 deployDefaultClusterClasses: true
 
+# The ClusterClass and the Templates it references must be in the same namespace
+# as the Cluster. To enable cluster creation in user-defined namespaces, CAREN
+# will copy all ClusterClasses and Templates from the source namespace to every
+# target namespace, i.e., every namespace that has a label with a matching key.
+namespaceSync:
+  enabled: true
+  targetNamespaceLabelKey: caren.nutanix.com/namespace-sync
+  # By default, sourceNamespace is the helm release namespace.
+  sourceNamespace: ""
+
 deployment:
   replicas: 1