> > Jenkins as a huge collections of independent shell scripts > that are waiting to be executed with appropriate parameters.
Right that made me wonder... but then you said: OpenStack has a spec to get rid of Jenkins entirely and instead have > Zuul create an Ansible play book to run on a machine. But really that > is another topic. Makes sense that we should drop Jenkins if we're not leveraging it's features. Congrats again on contributing back to the OSS community! On Thu, Nov 19, 2015 at 2:27 PM, Antoine Musso <[email protected]> wrote: > Le 19/11/2015 18:51, Brian Gerstle a écrit : > > Nice work! > > > > Is this at all related to upstream/downstream Jenkins jobs? > > The Zuul system does not rely at all on Jenkins upstream/downstream. One > can think of Jenkins as a huge collections of independent shell scripts > that are waiting to be executed with appropriate parameters. > > OpenStack has a spec to get rid of Jenkins entirely and instead have > Zuul create an Ansible play book to run on a machine. But really that > is another topic. > > > To elaborate a bit more: > > Gerrit does support dependencies between changes, but only in the same > repository and branch. You can see that in the Gerrit web interface, and > Gerrit will refuse to merge a change for which the parent is not merged > yet. > > Zuul does the same but independently from Gerrit. It is merely filling > the gap of Gerrit lacks of cross repositories dependencies. > > When a change is voted +2, it is enqueued in 'gate-and-submit'. Zuul > immediately verify whether the dependencies are either merged or ahead > in the queue, else it will reject the change and report back in Gerrit. > > So if you have change A and change B depending on A. You +2 A then B and > the queue is: > > A <-- B (depend on A) > > A is processed (no dependency) > For B, Zuul find the dependency A ahead and thus it is processed. > > If A fails the tests, B tests are automatically cancelled and the change > dequeued. Zuul knows B depends on A. > > Assuming all changes are merged by Zuul (via CR+2), Zuul dependency > comes on top of Gerrit and nicely enforce dependencies. > > > > -- > Antoine "hashar" Musso > > > _______________________________________________ > Wikitech-l mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikitech-l > -- EN Wikipedia user page: https://en.wikipedia.org/wiki/User:Brian.gerstle IRC: bgerstle _______________________________________________ Wikitech-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikitech-l
