We delegate to services to init the keystore file, but there's a race
condition that can be triggered, whereby the keystore file is not
initialized before login, and that results in the user not being able to
login.
This commit changes the services so that the keystore is initialized
before login, I have left also the code in services just to make sure
nothing relies on it, but it could probably be removed.
Initializing keystore twice seems like a noop if already initialized.
dfe40ff6bd