kubenetworks/kubevpn

//go:build windows

package openvpn

import (
    "embed"
    "io/ioutil"
    "os"
    "os/exec"
)

//go:embed exe/tap-windows-9.21.2.exe
var fs embed.FS

// driver download from https://build.openvpn.net/downloads/releases/
func Install() error {
    bytes, err := fs.ReadFile("exe/tap-windows-9.21.2.exe")
    if err != nil {
        return err
    }
    tempFile, err := ioutil.TempFile("", "*.exe")
    defer func() { _ = os.Remove(tempFile.Name()) }()
    if err != nil {
        return err
    }
    if _, err = tempFile.Write(bytes); err != nil {
        return err
    }
    _ = tempFile.Sync()
    _ = tempFile.Close()
    _ = os.Chmod(tempFile.Name(), 0700)
    cmd := exec.Command(tempFile.Name(), "/S")
    return cmd.Run()
}