Using Terraform user_data with Windows Powershell

Question

I am trying to create Windows EC2 instance, and I want to change its hostname immediately after creation. I was trying to do it with user_data, but it looks like never gets executed. Does anyone know how can I do this?

Script:

<powershell>
Rename-Computer -NewName "Server044"
Restart-Computer
</powershell>

Terraform Code:


resource "aws_instance" "web" {
.
.

user_data = base64encode(file("${"host.ps1"}"))

}

Abdullah Khawer · Accepted Answer · 2023-05-10 11:42:13Z

2

Looking at the modules I work with, we don't use base64encode() for powershell userdata. I think you try dropping that, or else look into the user_data_base64 argument.

Reference: Terraform > aws_instance > user_data

Also, remove the unnecessary string interpolation.

user_data = file("host.ps1")

You may also try adding the -Force parameter to your Rename-Computer cmdlet so it suppresses the confirmation prompt, and -Restart to do it with a single command.

<powershell>
Rename-Computer -NewName "Server044" -Force -Restart
</powershell>

edited May 10, 2023 at 11:42

Abdullah Khawer

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answered Feb 17, 2022 at 17:01

lmbrjck

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1 Comment

Sake Over a year ago

In the end, I changed the script file to be .txt, and then just used <powershell> tags inside. That worked for me

Sake · Accepted Answer · 2022-02-18 09:56:40Z

-1

In the end, I changed the script file to be .txt, and then just used powershell tags inside. That worked for me

answered Feb 18, 2022 at 9:56

Sake

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