Ensure the --auto-tls argument is not set to True

Error: The --auto-tls argument is set to True

Bridgecrew Policy ID: BC_K8S_91
Checkov Check ID: CKV_K8S_118
Severity: HIGH

The --auto-tls argument is set to True

Description

Do not use self-signed certificates for TLS. etcd is a highly-available key value store used by Kubernetes deployments for persistent storage of all of its REST API objects. These objects are sensitive in nature and should not be available to unauthenticated clients. You should enable the client authentication via valid certificates to secure the access to the etcd service.

Fix - Buildtime

Kubernetes

  • Kind: Pod
apiVersion: v1
kind: Pod
metadata:
  annotations:
    scheduler.alpha.kubernetes.io/critical-pod: ""
  creationTimestamp: null
  labels:
    component: etcd
    tier: control-plane
  name: etcd
  namespace: kube-system
spec:
  containers:
  - command:
+   - etcd
+   - --auto-tls=true
    image: k8s.gcr.io/etcd-amd64:3.2.18

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