I have a number of systems that need configuration/updates, while being offline for long periods of time. They therefore need to contact a configuration system on boot, and in regular intervals and apply their updates in a pull fashion.
I have some experience with ansible-pull/mitogen for the purpose, but I was surprised that I could not find any pull-based mechanisms in similar management systems (chef/puppet) - might be I got lost in the wrong end of documentation.
Are you aware of other platforms that can serve the same purpose?