An AKS Cluster's Kubelet should be allowed to manage iptables

このページは日本語には対応しておりません。随時翻訳に取り組んでいます。翻訳に関してご質問やご意見ございましたら、お気軽にご連絡ください。

Description

It is recommended that kubelets be allowed to manage changes to iptables. This ensures that the iptables configuration remains in sync with the networking configuration of your pods. Manually configuring iptables with dynamic pod network configuration changes might hamper the communication between pods/containers and to the outside world.

Remediation

Choose one of the following remediation methods. For both methods, a restart of the Kubelet service is required afterwards.

Kubelet config file

  1. Add the following JSON to the /etc/kubernetes/kubelet/kubelet-config.json file.
"makeIPTablesUtilChains": true

Executable arguments

  1. Edit the kubelet service file on each worker node and ensure the following parameters are part of the KUBELET_ARGS variable string.
--make-iptables-util-chains:true
PREVIEWING: safchain/fix-custom-agent