Automation

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  • 1.  Report For Tagless VMs with NSX-T

    Posted Jul 09, 2021 09:40 PM

    I am trying to find a way to get a report to show all VMs without NSX-T Tags.  Any help with this because the commandlets in NSX-T are confusing.



  • 2.  RE: Report For Tagless VMs with NSX-T

    Posted Jul 12, 2021 03:39 PM

    Not perfect by any means, but hopefully this gets you going in right direction.  Basically, VM's without tags will not have a 'tags' property when querying realized state.  This works in Powershell Core (aka Powershell 7). Will not work as written in classic Powershell.

    NSX-T: Finding Tagless NSX-T VMs with Powershell Core (zsoldier.com)

    $Credential = Get-Credential
    $skipcertcheck = $true
    $AuthMethod = “Basic”
    $NSXMgr=”NSXTManagerIPorDNSName”
    $policyapi = "/policy/api/v1"
    $base_url = ("https://" + $NSXMgr + $policyapi)

    $endpoint = "/infra/realized-state/virtual-machines"
    $Data = Invoke-restmethod -Uri ($base_url + $EndPoint) -Method GET -Credential $Credential -SkipCertificateCheck:$skipcertcheck -Authentication:$AuthMethod

    #VMs without tags
    $data.results | where {$_.tags -eq $null}

    #VMs with tags
    $data.results | where {$_.tags -ne $null}


  • 3.  RE: Report For Tagless VMs with NSX-T

    Posted Jul 12, 2021 04:45 PM

    This is great and I what I usually do is put it into a HTML report to publish, but I am missing something when I am just trying to pull the name of the tagless, can you tell me where I went south?

     

    #############################
    # Variables #
    #############################
    $date=Get-Date -format "yyyy-MMM-d"
    $datetime=Get-Date
    $filelocation="\var\www\Tagless\NSX\NSX-$date.htm"

    #############################
    # Content #
    #############################
    #VMs without tags
    #$report.results | where { $_.tags -eq $null }
    $report.results = Get-VM | where { $_.tags -eq $null } | select name

    #############################
    # Add Text to the HTML file #
    #############################
    $report | ConvertTo-Html –title "VMware NSX-Tagless Check" –body "<H1>VMware NSX-Tagless Check</H1>" -head "<link rel='stylesheet' href='style.css' type='text/css' />" | Out-File $filelocation
    ConvertTo-Html –title "VMware NSX-Tagless Check" –body "<H4>Date and time</H4>",$datetime -head "<link rel='stylesheet' href='style.css' type='text/css' />" | Out-File -Append $filelocation
    ConvertTo-Html –title "VMware NSX-Tagless Check" –body "<H4>VM Count</H4>",$report.Count -head "<link rel='stylesheet' href='style.css' type='text/css' />" | Out-File -Append $filelocation



  • 4.  RE: Report For Tagless VMs with NSX-T

    Posted Jul 12, 2021 05:58 PM

    $report = $report.results | where { $_.tags -eq $null }

    #Get-VM is working against vCenter, not NSX-T.



  • 5.  RE: Report For Tagless VMs with NSX-T

    Posted Jul 12, 2021 06:05 PM

    I did connect to a vcenter to try and use that cmdlet only because that is what I know.  But yup I see the '$report =' is a big missing piece.  The report published, but it shows A LOT lol and I am just hunting for the name of the VM.  How can I filter it to just that?



  • 6.  RE: Report For Tagless VMs with NSX-T

    Posted Jul 12, 2021 06:42 PM

    Ah, no worries

    Do the following:



  • 7.  RE: Report For Tagless VMs with NSX-T

    Posted Jul 12, 2021 08:23 PM

    To clarify w/ filter:



  • 8.  RE: Report For Tagless VMs with NSX-T

    Posted Jul 13, 2021 03:22 AM

    That did it!

    Is there a place to learn these cmdlets better? I am a novice at powerCLI and now that I am diving into NSX-T seems I need to relearn what little I know.   I have few more scripts I will need to rebuild, some where I tag VMs automatically.  

    Last question, is there anyway to make a tag not auto delete itself if its not assigned to a VM? I created a tag in NSX-V that would lock the VM down to unable to communicate with it's network when first created, so that tag sits around idol until I have a new VM.

    Again thank you so much for the help so far!



  • 9.  RE: Report For Tagless VMs with NSX-T

    Posted Jul 13, 2021 01:56 PM

    Looking at the API makes me believe that this is not possible as it seems a tag must be associated w/ a Virtual Machine.  As a workaround, might I suggest creating a dummy VM and tagging that.  It can literally be a VM w/ no disk, no network card assigned.  As long as it's in vCenter inventory, you can tag it, assuming you have NSX-T sync'd w/ vCenter Inventory.

     

    As far as learning Powershell, I learned organically w/ superb help from 's many community post examples.  As far as material, I've heard great things about Don Jones 30 days of lunches series.   Learn PowerShell in a Month of Lunches: Covers Windows, Linux, and macOS: Plunk, Travis, Petty, James, Leonhardt, Leon: 9781617296963: Amazon.com: Books

    This forum in general is also a good place to find many examples too.