This post is really a note to self and if its useful to anyone else then great! If your wanting to script setting up many Azure Function Apps then you may find this useful.
I had a task to create a bunch of function apps in different resource groups and locations to support a project. I have created the below powershell script to help me do this. The script assumed your resource groups are already setup and then does the following:
- Connects to your subscription
- Gets the resource group
- Creates an AppInsight instance
- Creates a storage account
- Gets the key from the storage account
- Creates a function app
- Updates the function app so that it is linked to the app insights and storage account
At the bottom of the script you can see how i reused the powershell function to setup the Azure resources for each of our environments.
Set-ExecutionPolicy -ExecutionPolicy Unrestricted
$prodSubId = "<Add id>"
$testSubId = "<Add id>"
Login-AzureRmAccount
function AddFunctionApp([string] $subscriptionId, [string] $rgname, [string] $storageAccountName, [string] $functionAppName, [string] $location)
{
Write-Host 'Subscription = ' $subscriptionId
#Set the Azure Subscription you are working with
Set-AzureRmContext -SubscriptionId $subscriptionId
#Get the resource group
$resourceGroup = Get-AzureRmResourceGroup | Where-Object { $_.ResourceGroupName -eq $rgname }
#Create App Insights
$appInsightsResource = New-AzureRmResource -ResourceName $functionAppName -ResourceGroupName $rgname -Tag @{ applicationType = "web"; applicationName = $functionAppName} `
-ResourceType "Microsoft.Insights/components" -Location $location -PropertyObject @{"Application_Type"="web"} -Force
#Create Azure Storage
New-AzureRmStorageAccount -ResourceGroupName $rgname -Name $storageAccountName -Location $location -SkuName Standard_LRS
#Create Function App
New-AzureRmResource -ResourceType 'Microsoft.Web/Sites' -ResourceName $functionAppName -Kind 'functionapp' -Location $location -ResourceGroupName $rgname -Properties @{} -Force
#Extract Storage Key from Storage Account
$keys = Get-AzureRmStorageAccountKey -ResourceGroupName $rgname -Name $storageAccountName
$accountKey = $keys | Where-Object {$_.KeyName -eq "Key1" } | Select Value
#Update Function App with settings from Storage and App Insights
$AppInsightsKey = $appInsightsResource.Properties.InstrumentationKey
$storageAccountConnectionString = 'DefaultEndpointsProtocol=https;AccountName=' + $storageAccountName + ';AccountKey=' + $accountKey.Value
$contentShare = $functionAppName.ToLower()
$AppSettings = @{}
$AppSettings = @{'AzureWebJobsDashboard' = $storageAccountConnectionString;
'AzureWebJobsStorage' = $storageAccountConnectionString;
'FUNCTIONS_EXTENSION_VERSION' = '~1';
'WEBSITE_CONTENTAZUREFILECONNECTIONSTRING' = $storageAccountConnectionString;
'WEBSITE_CONTENTSHARE' = $contentShare;
'APPINSIGHTS_INSTRUMENTATIONKEY' = $AppInsightsKey}
Set-AzureRmWebApp -Name $functionAppName -ResourceGroupName $rgname -AppSettings $AppSettings
}
#Dev
AddFunctionApp -subscriptionId $testSubId -rgName "MyFunction-Dev" -storageAccountName "myfunctionstorepdev" -functionAppName "MyFunction-Dev" -location "North Europe"
#System Test
AddFunctionApp -subscriptionId $testSubId -rgName "MyFunction-SysTest" -storageAccountName "myfunctionstoresys" -functionAppName "MyFunction-SysTest" -location "North Europe"
#UAT
AddFunctionApp -subscriptionId $testSubId -rgName "MyFunction-UAT" -storageAccountName "myfunctionstorepuat" -functionAppName "MyFunction-UAT" -location "North Europe"
#Production
AddFunctionApp -subscriptionId $testSubId -rgName "MyFunction-Prod" -storageAccountName "myfunctionstoreprod" -functionAppName "MyFunction-Prod" -location "North Europe"
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