Azure Automation
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1,177 questions
Unable to uninstall an application with the help of Azure DSC configuration
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Girish Prajwal
706
Reputation points
Hi Team,
We are unable to uninstall an older version of application with the help of Azure DSC. We are using the modules get-wmiobject for the same.
$app = Get-WmiObject -Class Win32_Product | Where-Object { $_.Name -eq "Application Name"}
$app.Uninstall()
However, the above command is not working.
What is our other options
get-package module is our next option however, it may take time for us to implement it.
Get-Package -Name "Application Name"-RequiredVersion "1.0" | Uninstall-Package
Please suggest.
{count} votes
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Girish Prajwal 706 Reputation points
2020-10-16T10:05:40.567+00:00 Dont we have anyone to respond to this query.
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Girish Prajwal 706 Reputation points
2020-10-16T12:59:06.33+00:00 @ Azure- Automation Team - This is terrible. I have been waiting for more than 6hours. Could anyone take this on a serious note and help us here.
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Girish Prajwal 706 Reputation points
2020-10-17T11:57:35.933+00:00 Its not one time activity to check for the package to uninstall. As there are loads of VM's hosted and they are using dsc configuration.
The dsc should keep checking for the version which we give and then download the latest one from the source URL's and then proceed with the installation.
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tbgangav-MSFT 10,416 Reputation points2020-10-17T12:04:51.577+00:00 Hello @Girish Prajwal ,
Got it, then you need to go with DSC! :)
As shared in my earlier comment, please check both the options and let me know if you have any further queries regarding it.
DSC should keep checking for the version which we give and then download the latest one from the source URL's and then proceed with the installation
In this case, if their is heavy work involved which includes pre-validations and giving input like downloading latest one from source URL's, etc. then better option might be #2 i.e., leveraging Script resource because it gives us feasibility to just dump our PowerShell code in its blocks..
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Girish Prajwal 706 Reputation points
2020-10-17T14:14:15.01+00:00 Hi @tbgangav-MSFT ,
We already have 99% of the DSC script ready and is working. One part our script was not considering was on uninstallation part. So, I would check on 2nd option as you gave. I believe, it requires get-package modules for us to install before executing our scripts. is that right?
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tbgangav-MSFT 10,416 Reputation points
2020-10-17T14:57:38.9+00:00 Hello @Girish Prajwal , yes, that's right!
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Girish Prajwal 706 Reputation points
2020-10-19T11:25:21.787+00:00 Hi @tbgangav-MSFT ,
On the above 1. options provided by you needs/requires get-package module to be installed. With the script resource we had the script as below earlier.
Configuration Software
{
Setscript =
{
$app = Get-WmiObject -Class Win32_Product | Where-Object { $_.Name -eq & "$Application Name"}
$app.Uninstall()
write-verbose "$app is uninstalled"
}
then we begin withStart-Transcript and so on
Let me know if the above command helps us in uninstalling the application.
When ran locally on the VM, it runs perfectly fine. where as using DSC, it wont work.
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tbgangav-MSFT 10,416 Reputation points
2020-10-20T12:14:23.917+00:00 Hi @Girish Prajwal ,
If you are not opting for first 2 options i.e., 1)Package resource and 2)Script resource as there is dependency on PackageManagement module to be installed then as you said the 3rd option would be go with Script resource with Get-WMIObject approach as it doesn't have that dependency.
I have tried to reproduce the issue that you were facing with Script resource Get-WMIObject approach but it didn't fail and had successfully uninstalled the targeted package. PFA sample config file and try to compare your config file with the attached one, test it if it resolves your issue. (Note: Hope you are aware that SetScript is called if the TestScript returns $false.
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tbgangav-MSFT 10,416 Reputation points
2020-10-20T12:14:44.513+00:00 Even after that if issue persists then please drop an email at AzCommunity@microsoft.com with the subject "ATTN: Krishna - DSC - 128601". I will assist you offline over the email or route you to Azure technical support for deeper investigation.
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tbgangav-MSFT 10,416 Reputation points
2020-10-21T11:35:09.417+00:00 Hi @Girish Prajwal ,
As I didn't receive any email until now so just checking if the above information was helpful or not. And also wanted to know if your issue is resolved or not.
Let me know if you have any further queries regarding the same.
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