refactor for better error reporting on sql error (#1016)

* refactor for better error reporting on sql error

* fix errors

* add docs

zrpc/internal/resolver/kube/deploy/clusterrole.yaml

@@ -0,0 +1,9 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: endpoints-reader
+rules:
+  - apiGroups: [""]
+    resources: ["endpoints"]
+    verbs: ["get", "watch", "list"]
+