On Mon, 2014-02-10 at 14:40 -0600, devdatta kulkarni wrote: > Hi, > > In the Solum project we are looking at various options for running > a pool of worker nodes that will build images (deployment units (DUs) in Solum terms) from user code. > > For code managing aspects, we are in the process of extending Zuul with a 'messaging' trigger. > Once this trigger is received, we will kick off gearman workers to build the DUs -- at least > that is the high-level idea. > > In this regards, I have following questions: > > I was told that nodepool is the system that manages such worker nodes for Zuul. I briefly looked at > the nodepool repository (https://github.com/openstack-infra/nodepool) but did not find > any information about its integration points with Zuul and/or gearman. Where should I look to find this > information? You might want to read an article I wrote about the internals of the upstream CI system: http://www.joinfu.com/2014/01/understanding-the-openstack-ci-system/ There is a section [1] that covers Nodepool: http://www.joinfu.com/2014/01/understanding-the-openstack-ci-system/#Assignment_of_a_Node_to_Run_a_Job You can see the configuration of Nodepool nodes by the upstream CI system in the openstack-infra/config project here: https://git.openstack.org/cgit/openstack-infra/config/tree/modules/openstack_project/templates/nodepool/nodepool.yaml.erb > Is it possible to use a different node management system instead of nodepool with Zuul? Probably would be best to improve Nodepool if you find something lacking there, rather than develop a new node management system... Just my suggestion. Best, -jay