Update embedded kubectl to v1.14.1

cmd/kured/Dockerfile

@@ -1,7 +1,7 @@
 FROM alpine:3.8
 RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk/*
 # NB: you may need to update RBAC permissions when upgrading kubectl - see kured-rbac.yaml for details
-ADD https://storage.googleapis.com/kubernetes-release/release/v1.13.6/bin/linux/amd64/kubectl /usr/bin/kubectl
+ADD https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubectl /usr/bin/kubectl
 RUN chmod 0755 /usr/bin/kubectl
 COPY ./kured /usr/bin/kured
 ENTRYPOINT ["/usr/bin/kured"]

kured-rbac.yaml

@@ -8,7 +8,7 @@ rules:
 # Allow kubectl to drain/uncordon
 #
 # NB: These permissions are tightly coupled to the bundled version of kubectl; the ones below
-# match https://github.com/kubernetes/kubernetes/blob/v1.12.1/pkg/kubectl/cmd/drain.go
+# match https://github.com/kubernetes/kubernetes/blob/v1.14.1/pkg/kubectl/cmd/drain/drain.go
 #
 - apiGroups: [""]
   resources: ["nodes"]
@@ -16,6 +16,9 @@ rules:
 - apiGroups: [""]
   resources: ["pods"]
   verbs:     ["list","delete","get"]
+- apiGroups: ["apps"]
+  resources: ["daemonsets"]
+  verbs:     ["get"]
 - apiGroups: ["extensions"]
   resources: ["daemonsets"]
   verbs:     ["get"]