chore: Add KUBERNETES_NODE_NAME to controller container

Author: NickLarsenNZ

deploy/helm/secret-operator/templates/daemonset.yaml

@@ -48,6 +48,12 @@ spec:
               value: {{ .Values.kubernetesClusterDomain | quote }}
             {{- end }}
             {{- include "telemetry.envVars" . | nindent 12 }}
+            # Operators need to know the node name they are running on, to e.g. discover the
+            # Kubernetes domain name from the kubelet API.
+            - name: KUBERNETES_NODE_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
           volumeMounts:
             - name: csi
               mountPath: /csi