Allow usage without gnome-keyring installed #722
Description
Repro steps:
When I attempt to add a private registry that is hosted on my local (home lab) network I get the following error. The private registry has no authentication and I can see it is giving a 200 OK response to VSCode.
Action: vscode-docker.connectCustomRegistry
Error type: Error
Error Message: The name org.freedesktop.secrets was not provided by any .service files
Version: 0.4.0
OS: linux (Fedora 29 KDE spin)
This issue is related to #470 in that you can work around it by installing gnome-keyring. However, I have been purging everything gnome off of my system. Gnome-keyring was removed to force application to use KWallet instead. So, no I will not install it. Nor am I going to badger anyone about supporting KWallet. Rather I am asking that instead of throwing an error when it can't connect to libsecret, it prompts the user for a username and password when one is required (my private registry has none, it's not accessible outside my network.)