last sync: 2021-May-14 16:08:20 UTC

Azure Policy definition

Kubernetes cluster containers should not use forbidden sysctl interfaces

Name Kubernetes cluster containers should not use forbidden sysctl interfaces
Azure Portal
Id 56d0a13f-712f-466b-8416-56fb354fb823
Version 4.0.0
details on versioning
Category Kubernetes
Microsoft docs
Description Containers should not use forbidden sysctl interfaces in a Kubernetes cluster. This recommendation is part of Pod Security Policies which are intended to improve the security of your Kubernetes environments. This policy is generally available for Kubernetes Service (AKS), and preview for AKS Engine and Azure Arc enabled Kubernetes. For more information, see https://aka.ms/kubepolicydoc.
Mode Microsoft.Kubernetes.Data
Type BuiltIn
Preview FALSE
Deprecated FALSE
Effect Default: audit
Allowed: (audit, deny, disabled)
Used RBAC Role none
History
Date/Time (UTC ymd) (i) Change type Change detail
2021-03-02 15:11:40 change Major (3.0.1 > 4.0.0)
2020-12-11 15:42:52 change Major (2.0.1 > 3.0.1)
2020-09-15 14:06:41 change Previous DisplayName: [Preview]: Kubernetes cluster containers should not use forbidden sysctl interfaces
2020-07-08 14:28:08 add 56d0a13f-712f-466b-8416-56fb354fb823
Used in Initiatives none
JSON Changes

JSON
{
  "properties": {
    "displayName": "Kubernetes cluster containers should not use forbidden sysctl interfaces",
    "policyType": "BuiltIn",
    "mode": "Microsoft.Kubernetes.Data",
    "description": "Containers should not use forbidden sysctl interfaces in a Kubernetes cluster. This recommendation is part of Pod Security Policies which are intended to improve the security of your Kubernetes environments. This policy is generally available for Kubernetes Service (AKS), and preview for AKS Engine and Azure Arc enabled Kubernetes. For more information, see https://aka.ms/kubepolicydoc.",
    "metadata": {
      "version": "4.0.0",
      "category": "Kubernetes"
    },
    "parameters": {
      "effect": {
        "type": "String",
        "metadata": {
          "displayName": "Effect",
          "description": "'Audit' allows a non-compliant resource to be created or updated, but flags it as non-compliant. 'Deny' blocks the non-compliant resource creation or update. 'Disabled' turns off the policy."
        },
        "allowedValues": [
          "audit",
          "deny",
          "disabled"
        ],
        "defaultValue": "audit"
      },
      "excludedNamespaces": {
        "type": "Array",
        "metadata": {
          "displayName": "Namespace exclusions",
          "description": "List of Kubernetes namespaces to exclude from policy evaluation."
        },
        "defaultValue": [
          "kube-system",
          "gatekeeper-system",
          "azure-arc"
        ]
      },
      "namespaces": {
        "type": "Array",
        "metadata": {
          "displayName": "Namespace inclusions",
          "description": "List of Kubernetes namespaces to only include in policy evaluation. An empty list means the policy is applied to all resources in all namespaces."
        },
        "defaultValue": [
          
        ]
      },
      "labelSelector": {
        "type": "Object",
        "metadata": {
          "displayName": "Kubernetes label selector",
          "description": "Label query to select Kubernetes resources for policy evaluation. An empty label selector matches all Kubernetes resources."
        },
        "defaultValue": {
          
        }
      },
      "forbiddenSysctls": {
        "type": "Array",
        "metadata": {
          "displayName": "Forbidden sysctls",
          "description": "The list of plain sysctl names or sysctl patterns which end with *. The string * matches all sysctls. For more information, visit https://aka.ms/k8s-policy-sysctl-interfaces."
        }
      }
    },
    "policyRule": {
      "if": {
        "field": "type",
        "in": [
          "AKS Engine",
          "Microsoft.Kubernetes/connectedClusters"
        ]
      },
      "then": {
      "effect": "[parameters('effect')]",
        "details": {
          "constraintTemplate": "https://store.policy.core.windows.net/kubernetes/forbidden-sysctl-interfaces/v1/template.yaml",
          "constraint": "https://store.policy.core.windows.net/kubernetes/forbidden-sysctl-interfaces/v1/constraint.yaml",
        "excludedNamespaces": "[parameters('excludedNamespaces')]",
        "namespaces": "[parameters('namespaces')]",
        "labelSelector": "[parameters('labelSelector')]",
          "values": {
          "forbiddenSysctls": "[parameters('forbiddenSysctls')]"
          }
        }
      }
    }
  },
  "id": "/providers/Microsoft.Authorization/policyDefinitions/56d0a13f-712f-466b-8416-56fb354fb823",
  "type": "Microsoft.Authorization/policyDefinitions",
  "name": "56d0a13f-712f-466b-8416-56fb354fb823"
}