SSH from windows using the gcloud CLI without being forced to use putty

Invoke-gcloudssh.ps1

# [Adapted from source:](https://superuser.com/a/1558617/91960)
# SSH from windows using the gcloud CLI without being forced to use putty
# Assumes that gcloud project defaults are set and auth is configured
function Invoke-gcloudssh {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [string] $instance_name
    )
    # get default command as string(--dry-run)
    $SrcCommand = (gcloud compute ssh "$instance_name" --dry-run) | Out-String

    # remove path to putty.exe
    $PuttyExe = "putty.exe"
    $SrcCommand = $SrcCommand.SubString($SrcCommand.IndexOf($PuttyExe) + $PuttyExe.length)

    # use ssh, remove .ppk file extension from the key name
    $NewCommand = "ssh" + $SrcCommand.Replace(".ppk", "")

    # run
    Invoke-Expression $NewCommand
}