[node operator] node state util function

Signed-off-by: Malte Poll <mp@edgeless.systems>

operators/constellation-node-operator/internal/node/node.go

@@ -0,0 +1,15 @@
+package node
+
+import corev1 "k8s.io/api/core/v1"
+
+func Ready(node *corev1.Node) bool {
+	for _, cond := range node.Status.Conditions {
+		if cond.Type == corev1.NodeReady {
+			if cond.Status == corev1.ConditionTrue {
+				return true
+			}
+			return false
+		}
+	}
+	return false
+}