Thanks! We have been slow to update our docs. I did put up a blog post about these sections of the templates [1], in case folks find that useful.
[1] http://jaormx.github.io/2018/dissecting-tripleo-service-templates-p2/ On 11/2/18 3:39 PM, Dan Prince wrote: > I pushed a patch[1] to update our containerized deployment > architecture docs yesterday. There are 2 new fairly useful sections we > can leverage with TripleO's stepwise deployment. They appear to be > used somewhat sparingly so I wanted to get the word out. > > The first is 'deploy_steps_tasks' which gives you a means to run > Ansible snippets on each node/role in a stepwise fashion during > deployment. Previously it was only possible to execute puppet or > docker commands where as now that we have deploy_steps_tasks we can > execute ad-hoc ansible in the same manner. > > The second is 'external_deploy_tasks' which allows you to use run > Ansible snippets on the Undercloud during stepwise deployment. This is > probably most useful for driving an external installer but might also > help with some complex tasks that need to originate from a single > Ansible client. > > The only downside I see to these approaches is that both appear to be > implemented with Ansible's default linear strategy. I saw shardy's > comment here [2] that the :free strategy does not yet apparently work > with the any_errors_fatal option. Perhaps we can reach out to someone > in the Ansible community in this regard to improve running these > things in parallel like TripleO used to work with Heat agents. > > This is also how host_prep_tasks is implemented which BTW we should > now get rid of as a duplicate architectural step since we have > deploy_steps_tasks anyway. > > [1] https://review.openstack.org/#/c/614822/ > [2] > http://git.openstack.org/cgit/openstack/tripleo-heat-templates/tree/common/deploy-steps.j2#n554 > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
