docs: improve the socket activation cli docs
as suggested by SvenDowideit expand the docs to have more information on
socket activation.
Docker-DCO-1.1-Signed-off-by: Brandon Philips (github: philips)
@@ -63,7 +63,10 @@ the ``-H`` flag for the client.
# both are equal
-To run the daemon with socket activation, use ``docker -d -H fd://*``. Individual sockets can also be specified ``docker -d -H fd://3``.
+To run the daemon with `socket activation <http://0pointer.de/blog/projects/socket-activation.html>`, use ``docker -d -H fd://*``.
+Using ``fd://*`` will work perfectly for most setups but you can also specify individual sockets too ``docker -d -H fd://3``.
+If the specified socket activated files aren't found then docker will exit.
+You can find examples of using socket activation with docker and systemd in the `docker source tree <https://github.com/dotcloud/docker/blob/master/contrib/init/systemd/socket-activation/>`.
.. _cli_attach:
