The Kubernetes admission controller 'NodeRestriction' should be enabled
Set up the kubernetes integration.
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Description
The Node and Pod objects that a kubelet could modify should be limited. Using the NodeRestriction
admission controller plugin limits the Node and Pod objects that a kubelet can modify. When limited by this admission controller, kubelets are only allowed to modify their own Node API object, and only modify Pod API objects that are bound to their node.
Kubelet
- On every node, set the authorization mode to
webhook
with parameters:--authorization-mode=webhook
- Use the Kubernetes Webhook Mode documentation to configure
Webhook
mode.
API Server
- Edit the API server pod specification file
/etc/kubernetes/manifests/kube-apiserver.yaml
on the master node and set the --enable-admission-plugins=NodeRestriction,...
parameter.