Adding this into the default example inventory so it has less of a chance of biting others after weeks of random failures (as etcd does not express that it has run out of RAM it just stalls).. 512MB was not enough for us to run one of our products.
Tokens are generated automatically during init process and on-demand for nodes joining process
Michael Beatty
Andrew Greenwood
David Chang
mlushpenko
Wong Hoi Sing Edison