cosmosdb-alert.json

{
  "$schema": "http://schema.management.azure.com/schemas/2014-04-01-preview/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "alertEmailAddress": {
      "type": "string",
      "metadata": {
        "description": "The email address to receive any alerts."
      }
    },
    "cosmosDbAccountName": {
      "type": "string",
      "defaultValue": "[uniqueString(subscription().subscriptionId, resourceGroup().name)]",
      "metadata": {
        "description": "The name to use when creating the Cosmos DB account. This must be globally unique."
      }
    }
  },
  "variables": {
    "actionGroupName": "MyApplicationErrors"
  },
  "resources": [
    {
      "name": "[parameters('cosmosDbAccountName')]",
      "type": "Microsoft.DocumentDB/databaseAccounts",
      "location": "[resourceGroup().location]",
      "apiVersion": "2015-04-08",
      "kind": "GlobalDocumentDB",
      "properties": {
        "databaseAccountOfferType": "Standard",
        "consistencyPolicy": {
          "defaultConsistencyLevel": "Session",
          "maxIntervalInSeconds": 5,
          "maxStalenessPrefix": 100
        }
      }
    },
    {
      "name": "[variables('actionGroupName')]",
      "type": "Microsoft.Insights/actionGroups",
      "location": "global",
      "apiVersion": "2018-03-01",
      "properties": {
        "groupShortName": "Cosmos DB",
        "enabled": true,
        "emailReceivers": [
          {
            "name": "Account Owner",
            "emailAddress": "[parameters('alertEmailAddress')]"
          }
        ]
      }
    },
    {
      "name": "ThrottledRequests",
      "type": "Microsoft.Insights/metricAlerts",
      "location": "global",
      "apiVersion": "2018-03-01",
      "properties": {
        "description": "[concat('The number of throttled requests has increased beyond the specified threshold.')]",
        "severity": 2,
        "enabled": true,
        "scopes": [
          "[resourceId('Microsoft.DocumentDB/databaseAccounts', parameters('cosmosDbAccountName'))]"
        ],
        "evaluationFrequency": "PT5M",
        "windowSize": "PT1H",
        "criteria": {
          "odata.type": "Microsoft.Azure.Monitor.SingleResourceMultipleMetricCriteria",
          "allOf": [
            {
              "name": "Throttled requests greater than 1",
              "metricName": "TotalRequests",
              "dimensions": [
                {
                  "name": "StatusCode",
                  "operator": "Include",
                  "values": [
                    "429"
                  ]
                }
              ],
              "operator": "GreaterThan",
              "threshold": 1,
              "timeAggregation": "Maximum"
            }
          ]
        },
        "actions": [
          {
            "actionGroupId": "[resourceId('Microsoft.Insights/actionGroups', variables('actionGroupName'))]"
          }
        ],
        "dependsOn": [
          "[resourceId('Microsoft.Insights/actionGroups', variables('actionGroupName'))]",
          "[resourceId('Microsoft.DocumentDB/databaseAccounts', parameters('cosmosDbAccountName'))]"
        ]
      }
    }
  ]
}