Can node-cache container in node-local-dns pod run in without privilege set to true with capabilities?

bhdebasish · November 20, 2021, 5:46am

Hi Experts,
i see in following node-cache container in node-local-dns runs as privileged container.

    securityContext:
      privileged: true

This can be a potential security threat. Can this pod run unprivileged with capabilities set?
In that case what would be those capabilities?

github.com

kubernetes/kubernetes/blob/master/cluster/addons/dns/nodelocaldns/nodelocaldns.yaml

# Copyright 2018 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

apiVersion: v1
kind: ServiceAccount
metadata:
  name: node-local-dns
  namespace: kube-system

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Can node-cache container in node-local-dns pod run in without privilege set to true with capabilities?

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