alert_cpu_template.json

{
  "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "virtualMachineName": {
      "type": "string",
      "metadata": {
        "description": "Name of the Virtual Machine to create the alert for."
      }
    },
    "sendToEmails": {
      "type": "string",
      "metadata": {
        "description": "Comma-separated list of emails to send alerts to."
      }
    }
  },
  "variables": {
    "ruleName": "[concat('cpu_80_',parameters('virtualMachineName'))]",
    "ruleDesc": "Email when CPU greater than 80 percent for 5 min",
    "customEmails": "[split(parameters('sendToEmails'), ',')]"
  },
  "resources": [
    {
      "type": "microsoft.insights/alertrules",
      "name": "[variables('ruleName')]",
      "apiVersion": "2016-03-01",
      "location": "[resourceGroup().location]",
      "properties": {
        "name": "[variables('ruleName')]",
        "description": "[variables('ruleDesc')]",
        "isEnabled": true,
        "condition": {
          "odata.type": "Microsoft.Azure.Management.Insights.Models.ThresholdRuleCondition",
          "dataSource": {
            "odata.type": "Microsoft.Azure.Management.Insights.Models.RuleMetricDataSource",
            "resourceUri": "[resourceId('Microsoft.Compute/virtualMachines', parameters('virtualMachineName'))]",
            "metricNamespace": null,
            "metricName": "Percentage CPU"
          },
          "operator": "GreaterThan",
          "threshold": 80,
          "windowSize": "PT5M"
        },
        "actions": [
          {
            "odata.type": "Microsoft.Azure.Management.Insights.Models.RuleEmailAction",
            "sendToServiceOwners": false,
            "customEmails": "[variables('customEmails')]"
          }
        ]
      }
    }
  ],
  "outputs": {
  }
}