[openstack-dev] [oslo][taskflow] Thoughts on moving taskflow out of openstack/oslo

Eric Fried openstack at fried.cc
Wed Oct 10 20:07:10 UTC 2018

On 10/10/2018 12:41 PM, Greg Hill wrote:
> I've been out of the openstack loop for a few years, so I hope this
> reaches the right folks.
> Josh Harlow (original author of taskflow and related libraries) and I
> have been discussing the option of moving taskflow out of the openstack
> umbrella recently. This move would likely also include the futurist and
> automaton libraries that are primarily used by taskflow. The idea would
> be to just host them on github and use the regular Github features for
> Issues, PRs, wiki, etc, in the hopes that this would spur more
> development. Taskflow hasn't had any substantial contributions in
> several years and it doesn't really seem that the current openstack devs
> have a vested interest in moving it forward. I would like to move it
> forward, but I don't have an interest in being bound by the openstack
> workflow (this is why the project stagnated as core reviewers were
> pulled on to other projects and couldn't keep up with the review
> backlog, so contributions ground to a halt).
> I guess I'm putting it forward to the larger community. Does anyone have
> any objections to us doing this? Are there any non-obvious
> technicalities that might make such a transition difficult? Who would
> need to be made aware so they could adjust their own workflows?

The PowerVM nova virt driver uses taskflow (and we love it, btw). So we
do need to be kept apprised of any movement in this area, and will need
to be able to continue tracking it as a requirement.

If it does move, I assume the maintainers will still be available and
accessible. Josh has been helpful a number of times in the past.

Other than that, I have no opinion on whether such a move is good or
bad, right or wrong, or what it should look like.


> Or would it be preferable to just fork and rename the project so
> openstack can continue to use the current taskflow version without worry
> of us breaking features?
> Greg
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