How to add tags on specific Resourcegroups? - azure

Question

I need to add tags on only the ResourceGroups (which I don't know the name of) where a Keyvault is in. It is possible that there are more than one Keyvaults in several Resourcegroups.
This is how I tried:
Set-AzContext -Subscription $subscriptionID
#Add Currentdate on resourcegroup of Keyvault
$CurrentDate = ((Get-Date).ToString('dd-MM-yyyy'))
$Tags = #{'Date' = $Currentdate}
$Resources = (Get-AzKeyVault).ResourceGroupName
Foreach ($Resource in $Resources){
$ResourcegroupName = (Get-AzKeyVault).ResourceGroupName
$ResourcegroupId = (Get-AzResourceGroup -Name $ResourcegroupName).ResourceId
New-AzTag -ResourceId $ResourcegroupId -Tag $Tags
}
The commands work separately but in this context it gives multiple errors (below error 3 times). Getting the ResourceId gives by what I can see the main error:
Get-AzResourceGroup : Cannot convert 'System.Object[]' to the type 'System.String' required by parameter 'Name'. Specified method is not supported.
At line:11 char:47
+ ... sourcegroupId = (Get-AzResourceGroup -Name $ResourcegroupName).Resour ...
+ ~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Get-AzResourceGroup], ParameterBindingException
+ FullyQualifiedErrorId : CannotConvertArgument,Microsoft.Azure.Commands.ResourceManager.Cmdlets.Implementation.GetAzureResourceGroupCmdlet
New-AzTag : Cannot validate argument on parameter 'ResourceId'. The argument is null or empty. Provide an argument that is not null or empty, and then try the command again.
At line:12 char:27
+ New-AzTag -ResourceId $ResourcegroupId -Tag $Tags
+ ~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidData: (:) [New-AzTag], ParameterBindingValidationException
+ FullyQualifiedErrorId : ParameterArgumentValidationError,Microsoft.Azure.Commands.Tags.Tag.NewAzureTagCommand
Thanks a lot for your help!

Answer 1

I understand that you need to add tags on only the ResourceGroups where a Keyvault is in.
I modified a bit your code:
Set-AzContext -Subscription $subscriptionID
#Add Currentdate on resourcegroup of Keyvault
$CurrentDate = ((Get-Date).ToString('dd-MM-yyyy'))
$Tags = #{'Date' = $Currentdate}
$Resources = (Get-AzKeyVault).ResourceGroupName
Foreach ($Resource in $Resources){
$ResourcegroupId = (Get-AzResourceGroup -Name $Resource).ResourceId
New-AzTag -ResourceId $ResourcegroupId -Tag $Tags
}