Audit log path not set

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Metadata

Id: 73e251f0-363d-4e53-86e2-0a93592437eb

Cloud Provider: k8s

Platform: Kubernetes

Severity: Medium

Category: Observability

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Description

When kube-apiserver appears in a container command, the --audit-log-path flag should be set. This rule detects containers running kube-apiserver that do not include the --audit-log-path flag. Without --audit-log-path, the API server will not write audit logs to a file, preventing persistent audit records and hindering incident investigation and compliance.

Compliant Code Examples

apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver"]
      args: ["--audit-log-path=path/to/log"]
  restartPolicy: OnFailure

apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver","--audit-log-path=path/to/log"]
      args: []
  restartPolicy: OnFailure

Non-Compliant Code Examples

apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: dummy
  namespace: knative-sequence
spec:
  template:
    spec:
      containers:
      - name: command-demo-container
        image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
        command: ["kube-apiserver"]
        args: []
    restartPolicy: OnFailure
---
apiVersion: serving.knative.dev/v1
kind: Configuration
metadata:
  name: dummy-config
  namespace: knative-sequence
spec:
  template:
    spec:
      containers:
        - name: command-demo-container
          image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
          command: ["kube-apiserver"]
          args: []
      restartPolicy: OnFailure
---
apiVersion: serving.knative.dev/v1
kind: Revision
metadata:
  name: dummy-rev
  namespace: knative-sequence
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver"]
      args: []
  restartPolicy: OnFailure
---
apiVersion: sources.knative.dev/v1
kind: ContainerSource
metadata:
  name: dummy-cs
  namespace: knative-sequence
spec:
  template:
    spec:
      containers:
        - name: command-demo-container
          image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
          command: ["kube-apiserver"]
          args: []
      restartPolicy: OnFailure

apiVersion: v1
kind: Pod
metadata:
  name: command-demo
  labels:
    purpose: demonstrate-command
spec:
  containers:
    - name: command-demo-container
      image: gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
      command: ["kube-apiserver"]
      args: [""]
  restartPolicy: OnFailure