Author here.<p>The full guide to this post is located on Github: <a href="https://github.com/giantswarm/swarm-wercker#swacker-continuously-integrated-containers" rel="nofollow">https://github.com/giantswarm/swarm-wercker#swacker-continuo...</a> and the video walkthrough is on Vimeo: <a href="https://vimeo.com/134043502" rel="nofollow">https://vimeo.com/134043502</a>. The code for the Wercker step is here: <a href="https://github.com/giantswarm/giantswarm-wercker-step" rel="nofollow">https://github.com/giantswarm/giantswarm-wercker-step</a>.<p>There's a good post on Wercker's site that covers pushing containers various places including Google's Container Registry: <a href="http://devcenter.wercker.com/docs/containers/pushing-containers.html" rel="nofollow">http://devcenter.wercker.com/docs/containers/pushing-contain...</a>.