Some quick powershell functions for tags in ESXi enjoy:
#add tag to vm
function add_tag_to_vm($VM, $TAG)
{
Get-VM –Name $VM | New-TagAssignment –Tag $TAG
}
#Add a tag to all virtual machines in folder
function add_tag_to_all_vm_in_folder($FOLDER,$TAG){
get-folder $FOLDER | get-vm | New-TagAssignment –Tag “$TAG”
}
#List all vm's with specific tag
function get_vms_with_tag($TAG){
$tags = Get-VM –Tag “$TAG”
return $tags
}
#Check for the presence of a tag on VM
function check_vm_for_tag($VM, $TAG)
{
$checkfortag = get-vm $VM -tag $TAG
$havetag = get-vm | where {$checkfortag.name -contains $_.name}
return $havetag
}
#Remove tag from VM
function remove_tag_from_vm($VM, $TAG){
$myVM = Get-VM $VM
$myTagAssignment = Get-TagAssignment -TagAssignment $TAG $myVM
Remove-TagAssignment $myTagAssignment -Confirm:$False
}
#Remove a tag from all vm's in a folder
function remove_tag_from_all_vm_in_folder($FOLDER, $TAG){
$myVM = get-folder $FOLDER | Get-VM
$myTagAssignment = Get-TagAssignment -Category "$TAG" $myVM
Remove-TagAssignment $myTagAssignment -Confirm:$False
}