Unable to map Azure file share

Packer
1

I’ve been trying for days to figure out how to get an Azure file share mapped to the VM being built by packer. Everything I’ve found points to using New-PSDrive, but that has continued to fail.

This is, among many other things, what I’ve recently tried:

provisioner "powershell" {
    inline = [
      "cmd.exe /C \"cmdkey /add:`\"<storage_account>.file.core.windows.net`\" /user:`\"localhost\\<storage_account>`\" /pass:`\"<access_key>`\"\"",
      "New-PSDrive -Name F -PSProvider FileSystem -Root \\\\<storage_account>.file.core.windows.net\\fileshare -Persist -Scope Global"
    ]
  }

No matter what I’ve attempted, I get

CMDKEY: Credentials cannot be saved from this logon session.

and

New-PSDrive : The network resource type is not correct

These commands work when I execute them locally in either Powershell 5.x or Powershell Core 7.x.

I’ve also tried defining credentials to pass to the New-PSDrive cmdlet. That also hasn’t worked.