Kubelet hostname override is set

This product is not supported for your selected Datadog site. ().
Cette page n'est pas encore disponible en français, sa traduction est en cours.
Si vous avez des questions ou des retours sur notre projet de traduction actuel, n'hésitez pas à nous contacter.

Metadata

Id: bf36b900-b5ef-4828-adb7-70eb543b7cfb

Cloud Provider: Kubernetes

Platform: Kubernetes

Severity: Low

Category: Insecure Configurations

Learn More

Description

Hostnames should not be overridden. This rule detects containers (including initContainers) whose command invokes kubelet and includes the --hostname-override= flag. Overriding the node hostname can create duplicate or incorrect hostnames and may disrupt node identity and cluster operations.

Compliant Code Examples

apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: foo/bar
      command: ["kubelet"]
      args: []
  restartPolicy: OnFailure

Non-Compliant Code Examples

apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: foo/bar
      command: ["kubelet","--hostname-override=host"]
      args: []
  restartPolicy: OnFailure

apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: foo/bar
      command: ["kubelet"]
      args: ["--hostname-override=host"]
  restartPolicy: OnFailure