apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
  name: restricted
  annotations:
    # docker/default 标识 seccomp 的配置文件，但它与 Docker 运行时没有特别关联
    seccomp.security.alpha.kubernetes.io/allowedProfileNames: 'docker/default,runtime/default'
    apparmor.security.beta.kubernetes.io/allowedProfileNames: 'runtime/default'
    apparmor.security.beta.kubernetes.io/defaultProfileName:  'runtime/default'
spec:
  privileged: false
  # 防止权限升级到 root
  allowPrivilegeEscalation: false
  requiredDropCapabilities:
    - ALL
  # 允许的核心卷类型.
  volumes:
    - 'configMap'
    - 'emptyDir'
    - 'projected'
    - 'secret'
    - 'downwardAPI'
    # 假设集群管理员设置的临时 CSI 驱动程序和持久卷可以安全使用
    - 'csi'
    - 'persistentVolumeClaim'
    - 'ephemeral'
  hostNetwork: false
  hostIPC: false
  hostPID: false
  runAsUser:
    # 要求容器在没有 root 权限的情况下运行
    rule: 'MustRunAsNonRoot'
  seLinux:
    # 此策略假定节点使用 AppArmor 而不是 SELinux
    rule: 'RunAsAny'
  supplementalGroups:
    rule: 'MustRunAs'
    ranges:
      # 禁止添加 root 组
      - min: 1
        max: 65535
  fsGroup:
    rule: 'MustRunAs'
    ranges:
      # 禁止添加 root 组
      - min: 1
        max: 65535
  readOnlyRootFilesystem: false

