Title: #244: KCM: Modify krb5 snippet file kcm_default_ccache
A better workaround for now might be to have the sssd.service unit
declare Wants=sssd-kcm.socket (which does not fail if sssd-kcm.socket is not installed or
sssd-kcm can work without sssd.service. Wants is not a solution because sssd.service
sssd-kcm and sssd are two independent daemons.
Also, do not attempt to start the socket in %post because this will
break things if you're running in an installer environment (and there's no
reliable way to detect when you are or are not in the installer environment).
sssd-kcm would not be installed by default. So this would not be a problem for anaconda.
And we just need a temporary solution until it will be properly tested. Then it can be
enabled by default in f27.
See the full comment at https://github.com/SSSD/sssd/pull/244#issuecomment-299507197