Vsphere-iso content library iso path

Sorry if this is a silly question. I am very new to packer, trying to learn it.

I have been trying to build an image using an iso from a content library, but can’t find any documentation about how to use the content library. I am using the variable files from efops (GitHub - efops/packer-ubuntu20.04: Packer vsphere-iso builder for Ubuntu-20.04)

This is what I am trying to use as the iso_path:
iso_path = “contentlib/content-lib/ubuntu-server-22.04”

this is whaqt govc shows
govc library.ls content-lib/ubuntu-server-22.04/*

/content-lib/ubuntu-server-22.04/ubuntu-22.04-live-server-amd64.iso

the build can connect, creates the VM, says it’s adding the cdrom which it does, but when I look at the mount it’s using a datastore instead of the content library so it doesn’t find and boot from the iso.

Here is the log output:
2022/06/08 11:47:52 packer-builder-vsphere-iso plugin: Check if ISO path is a Content Library path
2022/06/08 11:47:53 packer-builder-vsphere-iso plugin: ISO path not identified as a Content Library path
2022/06/08 11:47:53 packer-builder-vsphere-iso plugin: Using [QNAP-HDD-Cluster] /contentlib/content-lib/-serv
er-22.04/-20.04.1-live-server-amd64.iso as the datastore path

Thank you.

UPDATE:
so after playing around with the paths for a bit, I was able to get it to identify the path as a content library. Seems the trick was to start the iso_path with the library name.

However, even though it found the library, it’s not seeing the ISO inside the library. It’s saying it can’t find the datastore ID path.

2022/06/08 12:37:32 packer-builder-vsphere-iso plugin: Check if ISO path is a Content Library path
2022/06/08 12:37:33 packer-builder-vsphere-iso plugin: ISO path identified as a Content Library path
2022/06/08 12:37:33 packer-builder-vsphere-iso plugin: Finding the equivalent datastore path for the Content Library ISO
file path
2022/06/08 12:37:33 packer-builder-vsphere-iso plugin: [WARN] Couldn’t find datastore ID path for -20.04.1-li
ve-server-amd64.iso
2022/06/08 12:37:33 packer-builder-vsphere-iso plugin: Using [QNAP-HDD-Cluster] //content-lib/-server-22.04/<
sensitive>-20.04.1-live-server-amd64.iso as the datastore path
2022/06/08 12:37:33 packer-builder-vsphere-iso plugin: Creating CD-ROM on controller ‘&{{{} 15000 0xc000e8b4a0 100 0xc00134476c} 0 }’ with iso ‘[QNAP-HDD-Cluster] //content-lib/-server-22.04/-20.04.
1-live-server-amd64.iso’

I don’t believe it’s a permissions issue, I am using an admin account for now just to get it working. I can see the library, the file, and the datastore info with govc commands.

Any help would be appreciated!