last sync: 2020-Nov-30 15:25:09 UTC

Azure Policy definition

Ensure container CPU and memory resource limits do not exceed the specified limits in Kubernetes cluster

Name Ensure container CPU and memory resource limits do not exceed the specified limits in Kubernetes cluster
Azure Portal
Id e345eecc-fa47-480f-9e88-67dcc122b164
Version 4.0.1
details on versioning
Category Kubernetes
Microsoft docs
Description This policy ensures container CPU and memory resource limits are defined and do not exceed the specified limits in a Kubernetes cluster. This policy is generally available for Kubernetes Service (AKS), and preview for AKS Engine and Azure Arc enabled Kubernetes. For instructions on using this policy, visit 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
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
Enable Monitoring in Azure Security Center 1f3afdf9-d0c9-4c3d-847f-89da613e70a8 Security Center GA
Json
{
  "properties": {
    "displayName": "Ensure container CPU and memory resource limits do not exceed the specified limits in Kubernetes cluster",
    "policyType": "BuiltIn",
    "mode": "Microsoft.Kubernetes.Data",
    "description": "This policy ensures container CPU and memory resource limits are defined and do not exceed the specified limits in a Kubernetes cluster. This policy is generally available for Kubernetes Service (AKS), and preview for AKS Engine and Azure Arc enabled Kubernetes. For instructions on using this policy, visit https://aka.ms/kubepolicydoc.",
    "metadata": {
      "version": "4.0.1",
      "category": "Kubernetes"
    },
    "parameters": {
      "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"
        }
      },
      "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"
        ]
      }
    },
    "policyRule": {
      "if": {
        "field": "type",
        "in": [
          "AKS Engine",
          "Microsoft.Kubernetes/connectedClusters",
          "Microsoft.ContainerService/managedClusters"
        ]
      },
      "then": {
      "effect": "[parameters('effect')]",
        "details": {
          "constraintTemplate": "https://raw.githubusercontent.com/Azure/azure-policy/master/built-in-references/Kubernetes/container-resource-limits/template.yaml",
          "constraint": "https://raw.githubusercontent.com/Azure/azure-policy/master/built-in-references/Kubernetes/container-resource-limits/constraint.yaml",
          "values": {
          "cpuLimit": "[parameters('cpuLimit')]",
          "memoryLimit": "[parameters('memoryLimit')]",
          "excludedNamespaces": "[parameters('excludedNamespaces')]"
          }
        }
      }
    }
  },
  "id": "/providers/Microsoft.Authorization/policyDefinitions/e345eecc-fa47-480f-9e88-67dcc122b164",
  "type": "Microsoft.Authorization/policyDefinitions",
  "name": "e345eecc-fa47-480f-9e88-67dcc122b164"
}