Link application insights to Azure web app through powershell - azure

Question

I'm trying to link new application insights to existing Azure web app through Powershell with the below script. I'm able to create a new app insight but unable to link the new app insight to the existing Azure web app.
$appInsights = New-AzResource -ResourceName 'MyWebsite09' -ResourceGroupName 'Test' `
-Tag #{ applicationType = 'web'; applicationName = 'sample1'} `
-ResourceType 'Microsoft.Insights/components' -Location 'North Central US' `
-PropertyObject #{'Application_Type'='web'} -Force
$appSetting = #{'APPINSIGHTS_INSTRUMENTATIONKEY'= $appInsights.Properties.InstrumentationKey}
Set-AzWebApp -Name 'sample1' -ResourceGroupName 'Test' -AppSettings $appSetting

Answer 1

Here is the Powershell commands to link application insights with exisiting azure web app . As your code will not enable the application insights , Follow the below code
$app = Get-AzWebApp -ResourceGroupName "AppMonitoredRG" -Name "AppMonitoredSite" -ErrorAction Stop
$newAppSettings = #{} # case-insensitive hash map
$app.SiteConfig.AppSettings | %{$newAppSettings[$_.Name] = $_.Value} # preserve non Application Insights application settings.
$newAppSettings["APPINSIGHTS_INSTRUMENTATIONKEY"] = "012345678-abcd-ef01-2345-6789abcd"; # set the Application Insights instrumentation key
$newAppSettings["APPLICATIONINSIGHTS_CONNECTION_STRING"] = "InstrumentationKey=012345678-abcd-ef01-2345-6789abcd"; # set the Application Insights connection string
$newAppSettings["ApplicationInsightsAgent_EXTENSION_VERSION"] = "~2"; # enable the ApplicationInsightsAgent
$app = Set-AzWebApp -AppSettings $newAppSettings -ResourceGroupName $app.ResourceGroup -Name $app.Name -ErrorAction Stop
You can Refer to this MS DOC for linking application insights to azure web-app fully.
or, You can even refer the SO thread for more details .

Answer 2

The below commands work for me in Azure portal CloudShell. After implementing the below code we were able to link New Application insight for existing webapp.
Code:
$resourceGroupName = "****"
$resourceName = "***"
$appInsightsInstrumentationKey = "***"
$app = Get-AzWebApp -ResourceGroupName $resourceGroupName -Name $resourceName -ErrorAction Stop
$newAppSettings = #{} # case-insensitive hash map
$app.SiteConfig.AppSettings | %{$newAppSettings[$.Name] = $.Value} # preserve non Application Insights application settings.
$newAppSettings["APPINSIGHTS_INSTRUMENTATIONKEY"] = $appInsightsInstrumentationKey; # set the Application Insights instrumentation key
$newAppSettings["APPLICATIONINSIGHTS_CONNECTION_STRING"] = "InstrumentationKey=$appInsightsInstrumentationKey"; # set the Application Insights connection string
$newAppSettings["ApplicationInsightsAgent_EXTENSION_VERSION"] = "~2"; # enable the ApplicationInsightsAgent
$app = Set-AzWebApp -AppSettings $newAppSettings -ResourceGroupName $app.ResourceGroup -Name $app.Name -ErrorAction Stop
Restart-AzWebApp -ResourceGroupName "*** " -Name "***"
Please update the values and try this code in Azure Portal CloudShell.
Note: The code is not working for me in Windows Powershell ISE application.