last sync: 2021-Aug-04 14:59:26 UTC

Azure Policy definition

Kubernetes cluster containers CPU and memory resource limits should not exceed the specified limits

Name Kubernetes cluster containers CPU and memory resource limits should not exceed the specified limits
Azure Portal
Id e345eecc-fa47-480f-9e88-67dcc122b164
Version 6.0.0
details on versioning
Category Kubernetes
Microsoft docs
Description Enforce container CPU and memory resource limits to prevent resource exhaustion attacks in a Kubernetes cluster. 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: deny
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 (5.0.1 > 6.0.0)
2020-12-11 15:42:52 change Major (4.0.1 > 5.0.1)
2020-09-15 14:06:41 change Previous DisplayName: [Preview]: Ensure container CPU and memory resource limits do not exceed the specified limits in Kubernetes cluster
2020-04-23 15:06:19 change Previous DisplayName: [Preview]: [AKS Engine] Ensure container CPU and memory resource limits do not exceed the specified limits in Kubernetes cluster
2019-10-29 23:04:36 add e345eecc-fa47-480f-9e88-67dcc122b164
Used in Initiatives
Initiative DisplayName Initiative Id Initiative Category State
[Deprecated]: Azure Security Benchmark v2 bb522ac1-bc39-4957-b194-429bcd3bcb0b Regulatory Compliance Deprecated
[Preview]: NIST SP 800-53 Rev. 5 179d1daa-458f-4e47-8086-2a68d0d6c38f Regulatory Compliance Preview
Azure Security Benchmark 1f3afdf9-d0c9-4c3d-847f-89da613e70a8 Security Center GA
FedRAMP High d5264498-16f4-418a-b659-fa7ef418175f Regulatory Compliance GA
FedRAMP Moderate e95f5a9f-57ad-4d03-bb0b-b1d16db93693 Regulatory Compliance GA
NIST SP 800-53 Rev. 4 cf25b9c1-bd23-4eb6-bd2c-f4f3ac644a5f Regulatory Compliance GA
JSON Changes

JSON
{
  "properties": {
    "displayName": "Kubernetes cluster containers CPU and memory resource limits should not exceed the specified limits",
    "policyType": "BuiltIn",
    "mode": "Microsoft.Kubernetes.Data",
    "description": "Enforce container CPU and memory resource limits to prevent resource exhaustion attacks in a Kubernetes cluster. 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": "6.0.0",
      "category": "Kubernetes"
    },
    "parameters": {
      "effect": {
        "type": "String",
        "metadata": {
          "displayName": "Effect",
          "description": "'Audit' allows a non-compliant resource to be created, but flags it as non-compliant. 'Deny' blocks the resource creation. 'Disable' turns off the policy."
        },
        "allowedValues": [
          "audit",
          "deny",
          "disabled"
        ],
        "defaultValue": "deny"
      },
      "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": {
          
        }
      },
      "cpuLimit": {
        "type": "String",
        "metadata": {
          "displayName": "Max allowed CPU units",
          "description": "The maximum CPU units allowed for a container. E.g. 200m. For more information, please refer https://aka.ms/k8s-policy-pod-limits"
        }
      },
      "memoryLimit": {
        "type": "String",
        "metadata": {
          "displayName": "Max allowed memory bytes",
          "description": "The maximum memory bytes allowed for a container. E.g. 1Gi. For more information, please refer https://aka.ms/k8s-policy-pod-limits"
        }
      }
    },
    "policyRule": {
      "if": {
        "field": "type",
        "in": [
          "AKS Engine",
          "Microsoft.Kubernetes/connectedClusters",
          "Microsoft.ContainerService/managedClusters"
        ]
      },
      "then": {
      "effect": "[parameters('effect')]",
        "details": {
          "constraintTemplate": "https://store.policy.core.windows.net/kubernetes/container-resource-limits/v1/template.yaml",
          "constraint": "https://store.policy.core.windows.net/kubernetes/container-resource-limits/v1/constraint.yaml",
        "excludedNamespaces": "[parameters('excludedNamespaces')]",
        "namespaces": "[parameters('namespaces')]",
        "labelSelector": "[parameters('labelSelector')]",
          "values": {
          "cpuLimit": "[parameters('cpuLimit')]",
          "memoryLimit": "[parameters('memoryLimit')]"
          }
        }
      }
    }
  },
  "id": "/providers/Microsoft.Authorization/policyDefinitions/e345eecc-fa47-480f-9e88-67dcc122b164",
  "type": "Microsoft.Authorization/policyDefinitions",
  "name": "e345eecc-fa47-480f-9e88-67dcc122b164"
}