Set the minimum TLS version to 1.2 on all Azure WebApps

SetTls12ForAllAzureRmSites.ps1

# Login to Azure
Add-AzureRmAccount


# Iterate all sites and set the Minimum TLS version to 1.2 (SSL Settings)
Get-AzureRmResource -ResourceType Microsoft.Web/sites | ForEach-Object {
    $params = @{
        ApiVersion        = '2018-02-01'
        ResourceName      = '{0}/web' -f $_.Name
        ResourceGroupName = $_.ResourceGroupName
        PropertyObject    = @{ minTlsVersion = 1.2 }
        ResourceType      = 'Microsoft.Web/sites/config'
    }
    Set-AzureRmResource @params -Force
}