Peer auto TLS set to true

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Metadata

Id: ae8827e2-4af9-4baa-9998-87539ae0d6f0

Cloud Provider: k8s

Framework: Kubernetes

Severity: Medium

Category: Networking and Firewall

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Description

When using etcd, the --peer-auto-tls flag should be set to false.

Compliant Code Examples

apiVersion: apps/v1
kind: Deployment
metadata:
  name: app-etcd-deployment
spec:
  selector:
    matchLabels:
      app: app
  replicas: 1
  template:
    metadata:
      labels:
        app: app
        version: v1
    spec:
      serviceAccountName: database
      containers:
      - name: database
        image: gcr.io/google_containers/etcd:v3.2.18
        imagePullPolicy: IfNotPresent
        command: ["etcd"]
        args: []
      nodeSelector:
        kubernetes.io/hostname: worker02  
    restartPolicy: OnFailure

apiVersion: apps/v1
kind: Deployment
metadata:
  name: app-etcd-deployment
spec:
  selector:
    matchLabels:
      app: app
  replicas: 1
  template:
    metadata:
      labels:
        app: app
        version: v1
    spec:
      serviceAccountName: database
      containers:
      - name: database
        image: gcr.io/google_containers/etcd:v3.2.18
        imagePullPolicy: IfNotPresent
        command: ["etcd", "--peer-auto-tls=false"]
        args: []
      nodeSelector:
        kubernetes.io/hostname: worker02  
    restartPolicy: OnFailure

Non-Compliant Code Examples

apiVersion: apps/v1
kind: Deployment
metadata:
  name: app-etcd-deployment
spec:
  selector:
    matchLabels:
      app: app
  replicas: 1
  template:
    metadata:
      labels:
        app: app
        version: v1
    spec:
      serviceAccountName: database
      containers:
      - name: database
        image: gcr.io/google_containers/etcd:v3.2.18
        imagePullPolicy: IfNotPresent
        command: ["etcd"]
        args: ["--peer-auto-tls=true"]
      nodeSelector:
        kubernetes.io/hostname: worker02  
    restartPolicy: OnFailure