ceph-qa-suite ------------- clusters/ - some predefined cluster layouts suites/ - set suite The suites directory has a hierarchical collection of tests. This can be freeform, but generally follows the convention of suites///... A test is described by a yaml fragment. A test can exist as a single .yaml file in the directory tree. For example: suites/foo/one.yaml suites/foo/two.yaml is a simple group of two tests. A directory with a magic '+' file represents a test that combines all other items in the directory into a single yaml fragment. For example: suites/foo/bar/+ suites/foo/bar/a.yaml suites/foo/bar/b.yaml suites/foo/bar/c.yaml is a single test consisting of a + b + c. A directory with a magic '%' file represents a test matrix formed from all other items in the directory. For example, suites/baz/% suites/baz/a.yaml suites/baz/b/b1.yaml suites/baz/b/b2.yaml suites/baz/c.yaml suites/baz/d/d1.yaml suites/baz/d/d2.yaml is a 4-dimensional test matrix. Two dimensions (a, c) are trivial (1 item), so this is really 2x2 = 4 tests, which are a + b1 + c + d1 a + b1 + c + d2 a + b2 + c + d1 a + b2 + c + d2 A directory with a magic '$' file, or a directory whose name ends with '$', represents a test where one of the non-magic items is chosen randomly. For example, both suites/foo/$ suites/foo/a.yaml suites/foo/b.yaml suites/foo/c.yaml and suites/foo$/a.yaml suites/foo$/b.yaml suites/foo$/c.yaml is a single test, either a, b or c. This can be used in conjunction with the '%' file in the same (see below) or other directories to run a series of tests without causing an unwanted increase in the total number of jobs run. Symlinks are okay. One particular use of symlinks is to combine '%' and the latter form of '$' feature. Consider supported_distros directory containing fragments that define os_type and os_version: supported_distros/% supported_distros/centos.yaml supported_distros/rhel.yaml supported_distros/ubuntu.yaml A test that links supported_distros as distros (a name that doesn't end with '$') will be run three times: on centos, rhel and ubuntu. A test that links supported_distros as distros$ will be run just once: either on centos, rhel or ubuntu, chosen randomly. The teuthology code can be found in https://github.com/ceph/teuthology.git