CoreOS is also going to continue to push forward on its vision of a standardized format for container application images. CoreOS originally launched its appc (App Container Image) effort to define a standard for containers in December 2014. In June of this year, CoreOS joined with Docker Inc to start the Open Container Initiative , which might have been a place for the appc spec to thrive. Philips said that OCI is only taking a narrow view of containers at this point only looking at the runtime and not the image format.