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azuredeploynocomments.json
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{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"storageAccountName": {
"type": "string",
"metadata": {
"description": "Storage Account where the Azure Function will be deployed"
}
},
"sqlServerName": {
"type": "string",
"metadata": {
"description": "Name of the SQL Server"
}
},
"sqlDBName": {
"type": "string",
"metadata": {
"description": "Name of the SQL database"
}
},
"sqlAdministratorLogin": {
"type": "string",
"metadata": {
"description": "The administrator username of the SQL logical server."
}
},
"sqlAdministratorLoginPassword": {
"type": "securestring",
"metadata": {
"description": "The administrator password of the SQL logical server."
}
},
"startingSkuTier": {
"type": "array",
"metadata": {
"description": "Starting tier of the SQL database, minimum tier, maximum tier, tier family."
},
"defaultValue": ["Basic","Basic","S2","Basic"],
"allowedValues": [
["Basic","Basic","S2","Basic"],
["S0","S0","S2","Standard"],
["S1","S0","S2","Standard"],
["S2","S0","S2","Standard"],
["S3","S3","S12","Standard"],
["S4","S3","S12","Standard"],
["S5","S3","S12","Standard"],
["S6","S3","S12","Standard"],
["S7","S3","S12","Standard"],
["S9","S3","S12","Standard"],
["S12","S3","S12","Standard"],
["P1","P1","P6","Premium"],
["P2","P1","P6","Premium"],
["P4","P1","P6","Premium"],
["P6","P1","P6","Premium"],
["P11","P11","P15","Premium"],
["P15","P11","P15","Premium"]
]
}
},
"functions": [],
"variables": {
"actionGroupName": "ASDAS Action Group",
"actionGroupShortName": "ASDAS",
"hostingPlanName": "ASDASHostingPlan",
"functionAppName": "asdas-scaling",
"functionName": "[concat('asdas-',parameters('sqlServerName'), '-',parameters('sqlDBName'))]",
"functionAppURL": "[concat('https://', variables('functionName'),'.azurewebsites.net/api/', variables('functionAppName'),'?code=')]",
"appInsightsServiceName": "[concat('appi-', parameters('sqlServerName'))]",
"metricDescriptionUp": "[concat('Azure SQL DB Auto Scaling (ASDAS) metric alert for UPSCALING ', parameters('sqlDBName'))]",
"metricDescriptionDown": "[concat('Azure SQL DB Auto Scaling (ASDAS) metric alert for DOWNSCALING ', parameters('sqlDBName'))]",
"alertnameup": "[concat(parameters('sqlDBName'),' - upscaling alert')]",
"alertnamedown": "[concat(parameters('sqlDBName'),' - downscaling alert')]",
"databaseCollation": "SQL_Latin1_General_CP1_CI_AS",
"transparentDataEncryption": "Enabled",
"roleAssignementName": "[guid(parameters('sqlServerName'))]",
"sqlDBContributorRole": "[subscriptionResourceId('Microsoft.Authorization/roleDefinitions', '9b7fa17d-e63e-47b0-bb0a-15c516ac86ec')]",
"deploySkuTier": "[parameters('startingSkuTier')[0]]",
"minimumSkuTier": "[parameters('startingSkuTier')[1]]",
"maximumSkuTier": "[parameters('startingSkuTier')[2]]",
"skuTierFamily": "[parameters('startingSkuTier')[3]]"
},
"resources": [
{
"name": "[variables('actionGroupName')]",
"type": "Microsoft.Insights/actionGroups",
"apiVersion": "2018-03-01",
"location": "Global",
"dependsOn": [
"[resourceId('Microsoft.Web/sites/functions', variables('functionName'), variables('functionAppName'))]"
],
"properties": {
"groupShortName": "[variables('actionGroupShortName')]",
"enabled": true,
"azureFunctionReceivers": [
{
"name": "[variables('functionAppName')]",
"functionAppResourceId": "[resourceId('Microsoft.Web/sites', variables('functionName'))]",
"functionName": "[variables('functionAppName')]",
"httpTriggerUrl": "[concat(variables('functionAppURL'), listKeys(resourceId('Microsoft.Web/sites/functions', variables('functionName'), variables('functionAppName')),'2018-11-01').default)]",
"useCommonAlertSchema": true
}
]
}
},
{
"name": "[variables('alertnameup')]",
"type": "Microsoft.Insights/metricAlerts",
"location": "Global",
"apiVersion": "2018-03-01",
"dependsOn": [
"[resourceId('Microsoft.Insights/actionGroups',variables('actionGroupName'))]",
"[resourceId('Microsoft.Sql/servers/databases',parameters('sqlServerName'),parameters('sqlDBName'))]"
],
"properties": {
"description": "[variables('metricdescriptionup')]",
"severity": 1,
"enabled": true,
"scopes": ["[resourceId('Microsoft.Sql/servers/databases',parameters('sqlServerName'),parameters('sqlDBName'))]"],
"evaluationFrequency":"PT5M",
"windowSize": "PT5M",
"criteria": {
"odata.type": "Microsoft.Azure.Monitor.SingleResourceMultipleMetricCriteria",
"allOf": [
{
"criterionType": "StaticThresholdCriterion",
"name" : "ASDAS DTU Consumption UP",
"metricName": "dtu_consumption_percent",
"dimensions":[],
"operator": "GreaterThanOrEqual",
"threshold" : 90,
"timeAggregation": "Average"
}
]
},
"actions": [
{
"actionGroupId": "[resourceId('Microsoft.Insights/actionGroups',variables('actionGroupName'))]"
}
]
}
},
{
"name": "[variables('alertnamedown')]",
"type": "Microsoft.Insights/metricAlerts",
"apiVersion": "2018-03-01",
"location": "Global",
"dependsOn": [
"[resourceId('Microsoft.Insights/actionGroups',variables('actionGroupName'))]",
"[resourceId('Microsoft.Sql/servers/databases',parameters('sqlServerName'),parameters('sqlDBName'))]"
],
"properties": {
"description": "[variables('metricdescriptiondown')]",
"severity": 2,
"enabled": true,
"scopes": ["[resourceId('Microsoft.Sql/servers/databases',parameters('sqlServerName'),parameters('sqlDBName'))]"],
"evaluationFrequency":"PT5M",
"windowSize": "PT5M",
"criteria": {
"odata.type": "Microsoft.Azure.Monitor.SingleResourceMultipleMetricCriteria",
"allOf": [
{
"criterionType": "StaticThresholdCriterion",
"name" : "ASDAS DTU Consumption DOWN",
"metricName": "dtu_consumption_percent",
"dimensions":[],
"operator": "LessThanOrEqual",
"threshold" : 20,
"timeAggregation": "Average"
}
]
},
"actions": [
{
"actionGroupId": "[resourceId('Microsoft.Insights/actionGroups',variables('actionGroupName'))]"
}
]
}
},
{
"name": "[parameters('storageAccountName')]",
"type": "Microsoft.Storage/storageAccounts",
"apiVersion": "2019-06-01",
"kind": "StorageV2",
"tags": {
"displayName": "[parameters('storageAccountName')]"
},
"location": "[resourceGroup().location]",
"sku": {
"name": "Standard_LRS",
"tier": "Standard"
},
"properties": {
"supportsHttpsTrafficOnly": true
}
},
{
"name": "[variables('hostingPlanName')]",
"type": "Microsoft.Web/serverfarms",
"apiVersion": "2018-11-01",
"location": "[resourceGroup().location]",
"dependsOn": [
"[resourceId('Microsoft.Storage/storageAccounts', parameters('storageAccountName'))]"
],
"properties": {
"name": "[variables('hostingPlanName')]",
"workerSize": "0",
"workerSizeId": "0",
"numberOfWorkers": "1"
},
"sku": {
"tier": "Dynamic",
"name": "Y1"
}
},
{
"name": "[variables('functionName')]",
"type": "Microsoft.Web/sites",
"apiVersion": "2018-11-01",
"kind": "functionapp",
"location": "[resourceGroup().location]",
"identity": {
"type": "SystemAssigned"
},
"dependsOn": [
"[resourceId('Microsoft.Web/serverfarms', variables('hostingPlanName'))]",
"[resourceId('Microsoft.Sql/servers/databases',parameters('sqlServerName'),parameters('sqlDBName'))]",
"[resourceId('microsoft.insights/components', variables('appInsightsServiceName'))]"
],
"properties": {
"name": "[variables('functionName')]",
"siteConfig": {
"appSettings": [
{
"name": "FUNCTIONS_EXTENSION_VERSION",
"value": "~3"
},
{
"name": "FUNCTIONS_WORKER_RUNTIME",
"value": "powershell"
},
{
"name": "AzureWebJobsStorage",
"value": "[concat('DefaultEndpointsProtocol=https;AccountName=',parameters('storageAccountName'),';AccountKey=',listKeys(resourceId('Microsoft.Storage/storageAccounts', parameters('storageAccountName')), '2019-06-01').keys[0].value,';EndpointSuffix=','core.windows.net')]"
},
{
"name": "WEBSITE_CONTENTAZUREFILECONNECTIONSTRING",
"value": "[concat('DefaultEndpointsProtocol=https;AccountName=',parameters('storageAccountName'),';AccountKey=',listKeys(resourceId('Microsoft.Storage/storageAccounts', parameters('storageAccountName')), '2019-06-01').keys[0].value,';EndpointSuffix=','core.windows.net')]"
},
{
"name": "WEBSITE_CONTENTSHARE",
"value": "[toLower(variables('functionName'))]"
},
{
"name": "MAXIMUMSKU",
"value": "[variables('maximumSkuTier')]"
},
{
"name": "MINIMUMSKU",
"value": "[variables('minimumSkuTier')]"
},
{
"name": "RESOURCEGROUP",
"value": "[resourceGroup().name]"
},
{
"name": "SQLDBNAME",
"value": "[parameters('sqlDBName')]"
},
{
"name": "SQLSERVERNAME",
"value": "[parameters('sqlServerName')]"
},
{
"name": "APPINSIGHTS_INSTRUMENTATIONKEY",
"value": "[reference(resourceId('microsoft.insights/components', variables('appInsightsServiceName')), '2020-02-02-preview').InstrumentationKey]"
}
],
"powerShellVersion": "~7",
"http20Enabled": true,
"minTlsVersion": "1.2",
"ftpsState": "Disabled"
},
"serverFarmId": "[resourceId('Microsoft.Web/serverfarms', variables('hostingPlanName'))]",
"clientAffinityEnabled": true,
"httsOnly": true
}
},
{
"name": "[concat(variables('functionName'), '/', variables('functionAppName'))]",
"type": "Microsoft.Web/sites/functions",
"apiVersion": "2018-11-01",
"location": "West Europe",
"dependsOn": [
"[resourceId('Microsoft.Web/sites', variables('functionName'))]"
],
"properties": {
"config": {
"bindings": [
{
"authLevel": "function",
"type": "httpTrigger",
"direction": "in",
"name": "Request",
"methods": [
"get",
"post"
]
},
{
"type": "http",
"direction": "out",
"name": "Response"
}
],
"disabled": false
},
"files": {
"run.ps1": "using namespace System.Net\nusing namespace System.Array\n\n# Input bindings and module import.\nparam($Request, $TriggerMetadata)\nImport-Module az.sql\n\n# Function RequestAnswer: Support for sending answer back to the requester and write logs.\nfunction Send-Answer {\n param (\n [string]$Answer,\n [bool]$WriteHost\n )\n process {\n if($WriteHost){\n Write-Host $answer\n }\n Push-OutputBinding -Name Response -Value ([HttpResponseContext]@{\n StatusCode = [HttpStatusCode]::OK\n Body = $answer\n })\n }\n}\n\n# List of available SQL Tiers for DTU\n$sqlSkus = @(\"Basic\",\"S0\",\"S1\",\"S2\",\"S3\",\"S4\",\"S5\",\"S6\",\"S7\",\"S9\",\"S12\",\"P1\",\"P2\",\"P4\",\"P6\",\"P11\",\"P15\")\n\n# Checking Environment variables\n$resourceGroupName = $env:RESOURCEGROUP\n$serverName = $env:SQLSERVERNAME\n$databaseName = $env:SQLDBNAME\n$maxsku = $env:MAXIMUMSKU\n$minsku = $env:MINIMUMSKU\nif ((!$resourceGroupName) -or (!$serverName) -or (!$databaseName) -or (!$maxsku) -or (!$minsku)){\n Send-Answer -Answer \"ASDAS - Critical Alert: Missing one or more environment variables in the Function App - No Action\" -WriteHost $true\n exit 1\n}\n\n# Checking Request variables (Azure Common Alert Schema)\n$metricDTU = [int]$Request.Body.data.alertContext.condition.allOf.metricValue\n$threshold = $Request.Body.data.alertContext.condition.allOf.operator\n$alertCondition = $Request.Body.data.essentials.monitorCondition\nif ((!$metricDTU) -or (!$threshold) -or (!$alertCondition)){\n Send-Answer -Answer \"ASDAS - Wrong request - No Action\" -WriteHost $true\n exit 1\n}\n\n# Checking Database current status\n$database = Get-AzSqlDatabase -ResourceGroupName $resourceGroupName -ServerName $serverName -databaseName $DatabaseName\nif(!$database){\n Send-Answer -Answer \"ASDAS - Database, Server or Resource Group does not exist - No Action\" - Write-Host $true\n exit 1\n}\nelse {\n $currentSku = $databaseName.currentServiceObjectiveName\n $scalingSku = $database.RequestedServiceObjectiveName\n $indexSku = [array]::indexof($sqlSkus,$currentSku)\n $indexMaxSku = [array]::indexof($sqlSkus,$maxsku)\n $indexMinSku = [array]::indexof($sqlSkus,$minsku)\n Write-Host \"ASDAS - DB: $DatabaseName - CurrentTier: $currentSku - ScalingTier: $scalingSku - DTU: $metricDTU - Operator: $threshold - Alert Condition: $alertCondition\"\n}\n\n# Checking if the DB is already in scaling or the alert is resolved.\nif (($currentSku -ne $scalingSku) -or ($alertCondition -ne \"Fired\")) {\n Send-Answer -answer \"ASDAS - DB: $DatabaseName - Scaling Already in progress or Alert Resolved - Current SKU: $currentSku\" -WriteHost $true\n exit 0\n}\n\n# Scale Actions\ntry {\n \n #Scale UP Action.\n if ($threshold -eq \"GreaterThanOrEqual\") {\n if($indexSku -lt $indexMaxSku) {\n $targetsku = $sqlSkus[$indexSku+1]\n # Scale SQL Database UP.\n Set-AzSqlDatabase -ResourceGroupName $resourceGroupName -ServerName $serverName -DatabaseName $databaseName -RequestedServiceObjectiveName $targetsku\n $body = \"ASDAS - DB: $DatabaseName - Action required: Scale UP - Previous SKU: $currentSku, New SKU: $targetsku - DTU: $metricDTU\"\n Write-Host $body\n }\n else {\n # Maximum SQL SKU reached.\n $body = \"ASDAS - DB: $DatabaseName - Action required: Scale UP - Maximum SKU reached - DTU: $metricDTU\"\n Write-Host $body\n }\n }\n\n # Scale DOWN Action.\n if ($threshold -eq \"LessThanOrEqual\") {\n if($indexSku -gt $indexMinSku) {\n $targetsku = $sqlSkus[$indexSku-1]\n # Scale SQL Database DOWN.\n Set-AzSqlDatabase -ResourceGroupName $resourceGroupName -ServerName $serverName -databaseName $DatabaseName -RequestedServiceObjectiveName $targetsku\n $body = \"ASDAS - DB: $DatabaseName - Action required: Scale DOWN - Previous SKU: $currentSku, New SKU: $targetsku - DTU: $metricDTU\"\n Write-Host $body\n }\n else {\n # Minimum SKU reached.\n $body = \"ASDAS - DB: $DatabaseName - Action required: Scale DOWN - Minimum SKU reached - DTU: $metricDTU\"\n Write-Host $body\n }\n }\n}\ncatch {\n Send-Answer -Answer \"ASDAS - DB: $DatabaseName - Error Scaling the DB - please refer to the Function App log for additional information\" -WriteHost $true\n exit 1\n}\n\n# Send Response.\nSend-Answer -Answer $body -WriteHost $false\n",
"function.json": "{\n \"bindings\": [\n {\n \"authLevel\": \"function\",\n \"type\": \"httpTrigger\",\n \"direction\": \"in\",\n \"name\": \"Request\",\n \"methods\": [\n \"get\",\n \"post\"\n ]\n },\n {\n \"type\": \"http\",\n \"direction\": \"out\",\n \"name\": \"Response\"\n }\n ]\n}\n"
}
}
},
{
"name": "[variables('appInsightsServiceName')]",
"type": "Microsoft.Insights/components",
"apiVersion": "2020-02-02-preview",
"location": "[resourceGroup().location]",
"properties": {
"ApplicationId": "[variables('appInsightsServiceName')]"
}
},
{
"name": "[parameters('sqlServerName')]",
"type": "Microsoft.Sql/servers",
"apiVersion": "2020-02-02-preview",
"location": "[resourceGroup().location]",
"properties": {
"administratorLogin": "[parameters('sqlAdministratorLogin')]",
"administratorLoginPassword": "[parameters('sqlAdministratorLoginPassword')]"
},
"resources": [
{
"name": "[parameters('sqlDBName')]",
"type": "databases",
"apiVersion": "2020-02-02-preview",
"location": "[resourceGroup().location]",
"tags": {
"ASDAS": "Enabled"
},
"dependsOn": [
"[parameters('sqlServerName')]"
],
"properties": {
"collation": "[variables('databaseCollation')]"
},
"sku": {
"name": "[variables('deploySkuTier')]",
"tier": "[variables('skuTierFamily')]"
},
"resources": [
{
"comments": "Transparent Data Encryption",
"name": "current",
"type": "transparentDataEncryption",
"apiVersion": "2017-03-01-preview",
"dependsOn": [
"[parameters('sqlDBName')]"
],
"properties": {
"status": "[variables('transparentDataEncryption')]"
}
}
]
},
{
"name": "AllowAllMicrosoftAzureIps",
"type": "firewallrules",
"apiVersion": "2020-02-02-preview",
"location": "[resourceGroup().location]",
"properties": {
"endIpAddress": "0.0.0.0",
"startIpAddress": "0.0.0.0"
},
"dependsOn": [
"[parameters('sqlServerName')]"
]
}
]
}
],
"outputs": {}
}