This is a three part question. No, wait, one clarifying statement and two questions. Okay, one clarifying statement, one main question with many sub-questions, and then a bonus question. :) ----------------------------------------------------------------------- First, again, the primary Fedora Cloud image is going to continue to contain heat-cfntools, and python, and we won't migrate away from cloud-init without a replacement which covers what heat needs. So, this is just about a specialized image tailored for docker. ----------------------------------------------------------------------- So, the main question: given that Docker upstream is recommending Heat as the best way to do Docker in OpenStack, what are the minimal requirements on the image for doing that? Is there a way to preconfigure the image so that heat-cfntools aren't required? In that case, do we need #cloud-config formatted userdata or can we get away with the #! shell-script style? If it is #cloud-config, is a _subset_ of that syntax sufficient (as for example CoreOS does)? If we choose to go with rpm-ostree for the image itself, will Heat be foiled by a surprise lack of ability to install packages? (Not just no yum, but actually read-only /usr?) I know that CloudFormation can do all sorts of things, but which will it need to do in this case? And is there a way to present these limitations to users in a way that won't be confusing? (Including, I assume, pointing them to the general-purpose image if the Docker one isn't flexible enough.) ----------------------------------------------------------------------- And the bonus question: if in the F23 or F24 timeframe, we go full-on rpm-ostree for the primary image (while still keeping it basically general purpose), will the "pkglayer" concept (where groups of packages can be added on top) be sufficient? I assume that it is _required_, and the basic idea is that we would need to add support for it to cfn_helper.py -- and possibly to Amazon's CloudFormation stuff too. Would going this direction be _workable_ for Heat? ----------------------------------------------------------------------- Thanks! -- Matthew Miller -- Fedora Project -- <mattdm@xxxxxxxxxxxxxxxxx> _______________________________________________ cloud mailing list cloud@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/cloud Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
