coreos/coreos-overlay — pull request #1002 by thommay (2014-12-11 16:12:32+00:00)
Title: Set flannel options explicitly

Setting environment options in a systemd overlay is not getting
honoured; presumably because those options aren't passed through docker
to flanneld. To work around this, pass arguments explicitly.

This is somewhat ugly because we're having to set defaults in the
config, but I can't see a better way right now.