hey Alfredo and other Cephers, i am trying to disable master,mimic-* and probably PRs targeting these branches building on trusty. otherwise the binaries built on trusty with the new GCC ABI will not be able to run on trusty installation without the new libstdc++ installed due to missing libstdc++ ABI symbols. for more context, please see the recent discussion thread in this mailing list, search "C++11, std::list_size(), and trusty" for it. for example, if a branch is pushed to ceph/ceph-ci, jenkins will build it, and upload the built packages to chacra. even if all trusty testnodes are reimaged with xenial. we still want to make sure that people using trusty won't run into troubles if they want to use the packages built using our build infrastructure. so, we need to use the old toolchain to build jewel and luminous. so the status quo is: - jewel, luminous, mimic-dev* and master built on trusty are using GCC-7 and the goal is to 1. build jewel and luminous on trusty with the old GCC shipped with the distro 2. do not build master, mimic-dev* branches on trusty the same applies to the branches targeting respective releases pushed to ceph/ceph-ci . but after digging around in ceph/ceph-build, i realized that probably we need: 1. a naming convention for branches targeting jewel/luminous, like wip-fix-a-bug-luminous. this helps with solving goal #1: so we can skip the steps preparing the GCC-7 when setup pbuilder. this also helps with solving gobal #2: we have no way to tell if a wip branch is targeting which release without actually cloning it and looking at the source files or using "git describe". but typically, jenkins will not have access to the source files or the .git directory of a PR or a ceph-ci repo before the "ceph-*-setup" job. and i'd like to prevent jenkins from scheduling a job at the very beginning: so the only metadata at that phase is the "$GIT_BRANCH". that's why i suggest use a naming convention for these branches. so jenkins is able to identify them. 2. we need to have a "combination-filter"[1] referencing the $GIT_BRANCH, like "!(["master", "mimic-dev1"].contains(branch) && DIST=="trusty)". where "branch" is an axis, calculated using $GIT_BRANCH. i am not sure if #2 is a feasible approach. because i *think* the supported axises are setup when the jenkins-job-builder populate the yaml configuration files to jenkins. if that's the case, we cannot parameterize the "combination-filter" at run-time. any idea or comment would be appreciated! cheers, --- [1] https://docs.openstack.org/infra/jenkins-job-builder/project_matrix.html -- Regards Kefu Chai -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html