Hi All, I am trying to run wireguard-go (using "golang.zx2c4.com/wireguard/wgctrl" for configure) on container-optimized os on GCP and I am facing the below issue. The same works on ubuntu/centos etc
1) Wireguard device creation and tunnel gets created as required. It works as expected 2) When the admin wants to delete the wg tunnel interface and recreate the wg interface. It gives error "err device or resource busy" => To create the tunnel device tun.CreateTUN(deviceName, mtu). device.NewDevice(tun, deviceLogger) =>To delete the tunnel device func (device *Device) Close() which is probably calling tun.tunFile.Close(), to close the FD ----Snippet of the logs, while closing the device and creating again ^[[0m^[[1;33m[22:04:47 2021/09/09 +0000] [WARN] LIsten_WG_API: userspace wireguard device API interface closed, error while accepting connection, err:fd closed ^[[0m[22:04:47 2021/09/09 +0000] [INFO] .Close: closed userspace wireguard API interface and device ^[[0m[22:04:47 2021/09/09 +0000] [INFO] CreateWg: create userspace wireguard device wg1 ^[[0m^[[0;31m[22:04:47 2021/09/09 +0000] [EROR] CreateUSWG: userspace tunnel interface creation failed, device name wg1, err device or resource busy ^[[0m^[[0;31m[22:04:47 2021/09/09 +0000] [EROR] CreateWgfailed to create wg1: device or resource busy ^[[0m^[[0;31m[22:04:47 2021/09/09 +0000] [EROR]new Config:device or resource busy Plz let me know if I am missing something. Regards, Dev
