Support for --askpass option like openvpn2 (sending key passphrase)

[mdemartinis]

I'm connecting to an OpenVPN server that uses .ovpn profiles and key passphrases.

In OpenVPN2 cli, I can specify --config and --askpass <file_with_key_passphrase>. But I couldn't find the way to specify this in OpenVPN3.
It would be useful to automate the connection to different VPN servers with different profiles and passphrases, so I don't need to enter the passphrase each time I try to connect.

Is there any workaround for this, if the feature is not yet included?

Thanks in advance.

[dsommers]

Is this related to the reference client? (test/ovpncli/cli.cpp) or the OpenVPN 3 Linux project?