How to list all cloud services in Azure PowerShell, and then loop each cloud service to find how many VMs are in it - azure-powershell

Question

I want to export an XML file which is contains all the cloud services and the VMs in each cloud service.

Answer 1

I would only call Get-AzureVM once to optimize processing. Afterwards I would group and output with PowerShell commands which are faster than filtering with the Azure PowerShell commands.
And with the grouping you also get an answer to your question in your title: how many VMs are in the Cloud Service? This is simply to get from the Count property.
$allVMs = Get-AzureVM
$allVMs | Group-Object -Property ServiceName
<# Output
Count Name Group
----- ---- -----
2 pksttest1 {Microsoft.WindowsAzure.Commands.ServiceManagement.Model.PersistentVMRoleListContext, Microsoft.WindowsAzure.Commands.ServiceManage...
1 pksttest2 {Microsoft.WindowsAzure.Commands.ServiceManagement.Model.PersistentVMRoleListContext}
#>
$services = Get-AzureVM | Group-Object -Property ServiceName
foreach ($service in $services) {
# Output cloud service name
"Cloud Service '$($service.Name)'"
# Output VMs in that cloud service
foreach ($vm in $service.Group) {
"VM '$($vm.HostName)'"
}
}
<# Output
Cloud Service 'pksttest1'
VM 'host1'
VM 'host3'
Cloud Service 'pksttest2'
VM 'host2'
#>
In your sample you call the Azure Service Management API once to get all cloud services and then again for every cloud service to get the VMs. With Get-AzureVM you get already all necessary data.
I also published the sample snippet on GitHub Gist: https://gist.github.com/pkirch/1ec6f3c1ca057b8beefb