Azure Policy 存储帐户保留策略未标记资源答案

【问题标题】：Azure Policy Storage Accounts retention policy not flagging the resourceAzure Policy 存储帐户保留策略未标记资源
【发布时间】：2020-09-28 19:02:36
【问题描述】：

我正在使用下面的代码来监控存储帐户的保留策略。似乎我有正确的别名，但是当我看到合规性报告时显示“100% 合规 0 出 0”。版本控制和私有链接策略也有同样的问题。我有与这些类似的存储帐户策略，但它们实际上返回目标存储帐户的数量，唯一的区别是它们没有像这些那样引用 blob 服务别名。感谢您的任何回答。


resource "azurerm_policy_definition" "sa-ensure-versioning-enabled-policy" {

  name         = "sa-ensure-versioning-enabled-policy-definition"

  policy_type  = "Custom"

  mode         = "All"

  #management_group_name = var.management_group_name

  display_name = "Ensure versioning enabled policy"



  metadata = <<METADATA

      {

      "version": "1.0.0",

      "category": "Storage"

    }

  METADATA



  policy_rule = <<POLICY_RULE

          {

        "if": {

            "allOf": [

                {

                    "field": "type",

                    "equals": "Microsoft.Storage/storageAccounts"

                },

                {

                "not": {

                  "field":"Microsoft.Storage/storageAccounts/blobServices/default.isVersioningEnabled",

                  "equals": "true"

                 }

                }

            ]

        },

        "then": {

            "effect": "[parameters('effect')]"    

        }

    }

  POLICY_RULE



  parameters = <<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": "audit"

        }

    }

  PARAMETERS



}



resource "azurerm_policy_assignment" "sa-ensure-versioning-enabled-policy-assignment" {

  name                 = "sa-ensure-versioning-enabled-policy-assignment"

  scope                = data.azurerm_subscription.current.id

  policy_definition_id = azurerm_policy_definition.sa-ensure-versioning-enabled-policy.id

  description          = "Storage Account ensure delete retention policy."

  display_name         = "Ensure versioning enabled policy"



  parameters = <<PARAMETERS

      {

        "effect": {

          "value": "audit"

          }

      }

  PARAMETERS

}

添加此代码以使策略正常工作。

{
    "mode": "All",
    "policyRule": {
        "if": {
            "field": "type",
            "equals": "Microsoft.Storage/storageAccounts"
        },
        "then": {
            "effect": "auditIfNotExists",
            "details": {
                "type": "Microsoft.Storage/storageAccounts/blobServices",
                "roleDefinitionIds": [
                    "/providers/microsoft.authorization/roleDefinitions/b24988ac-6180-42a0-ab88-20f7382dd24c"
                ],
                "existenceCondition": {
                    "field": "Microsoft.Storage/storageAccounts/blobServices/deleteRetentionPolicy.enabled",
                    "equals": "true"
                }
            }
        }
    },
    "parameters": {}
}

【问题讨论】：

标签： azure storage account policy retention

【解决方案1】：

似乎是 Azure 中的这个 ia 错误，记录在这里：https://github.com/Azure/azure-policy/issues/377。显然 Microsoft.Storage/storageAccounts/blobServices 尚未运行。解决方案的 ETA 表示 2020 年 9 月，但该日期和之前的一些日期已经过去。

【讨论】：

能否确保通过 Azure 策略为 blob 启用软删除？
现在可以在 roleDefinitons 的帮助下完成，请参阅上面的代码。

【解决方案2】：

任何引用 Microsoft.Storage/storageAccounts/blobServices 的策略都应使用以下代码正常工作。（删除保留、版本控制等）现在可以使用以下策略：

    "mode": "All",
    "policyRule": {
        "if": {
            "field": "type",
            "equals": "Microsoft.Storage/storageAccounts"
        },
        "then": {
            "effect": "auditIfNotExists",
            "details": {
                "type": "Microsoft.Storage/storageAccounts/blobServices",
                "roleDefinitionIds": [
                    "/providers/microsoft.authorization/roleDefinitions/b24988ac-6180-42a0-ab88-20f7382dd24c"
                ],
                "existenceCondition": {
                    "field": "Microsoft.Storage/storageAccounts/blobServices/deleteRetentionPolicy.enabled",
                    "equals": "true"
                }
            }
        }
    },
    "parameters": {}
}

【讨论】：