How to create new alerts in azure for all webapps at same time - azure-template

Question

I want to create new alerts(High CPU,RAM) for all AppServicePlans in a given subscription. I could not find Powershell commands to create new alerts. Is there a way we can create these alerts for all appserviceplans with a single script? May be using ARM template?

Answer 1

Sorry for pasting a direct answer, but I cannot yet comment. You get the error because in the documentation for Add-AzMetricAlertruleV2 it states: "$act is the output of New-AzActionGroup cmdlet". Meaning you need to use for example:
$act = New-AzActionGroup -ActionGroupId "testActionGroup"
After that you need to add it in the parameter -ActionGroup $act for it to work.

Answer 2

If you look at Resource Explorer and navigate to a manually created (near-realtime) alert, you should see the "critera" object defined like below. Here is a full example of a resource that seems to be working. Create some variables for each of your values:
{
"type": "Microsoft.Insights/metricAlerts",
"apiVersion": "2018-03-01",
"name": "[variables('alertName')]",
"location": "global",
"dependsOn": [],
"tags": {
"[concat('hidden-link:', variables('applicationInsightsResourceId'))]": "Resource",
"[concat('hidden-link:', variables('webtestResourceId'))]": "Resource"
},
"properties": {
"description": "[concat('Alert for ', parameters('availibilityTestName'))]",
"severity": 4,
"enabled": true,
"scopes": [
"[variables('webtestResourceId')]",
"[variables('applicationInsightsResourceId')]"
],
"evaluationFrequency": "PT5M",
"windowSize": "PT15M",
"criteria": {
"odata.type": "Microsoft.Azure.Monitor.WebtestLocationAvailabilityCriteria",
"webTestId": "[variables('webtestResourceId')]",
"componentId": "[variables('applicationInsightsResourceId')]",
"failedLocationCount": 3
},
"actions": [
{
"actionGroupId": "[resourceId('microsoft.insights/actiongroups', 'webhook')]",
"webHookProperties": {
// Some properties to send to webhook
}
}
]
}
}