Hi, I'm trying to use devstack/master to install older releases of swift and keystone; the installation fails with a version conflict on pbr. A little bit of background : I work on a CI that needs to run the swift functional test suite and the swift part of tempest against swift/icehouse, swift/ijuno swift/kilo swift/master. My first approach was to use devstack/icehouse to install swift/icehouse, devstack/juno for swift/juno, etc.... I am now trying to use devstack/master in every cases because I need this : https://review.openstack.org/#/c/115307/ which allow not to install nova+glance which I don't need at all, and whose installation takes a really long time. So I use devstack/master, and set SWIFT_BRANCH and KEYSTONE_BRANCH to stable/icehouse for example. The installation fails because of a version conflict : This https://review.openstack.org/gitweb?p=openstack-dev/devstack.git;a=blob;f=lib/infra;h=3d68e45bd9954a7ce0003d809428c979663d2ede;hb=HEAD#l51 install the last pbr version, whereas keystone requires pdb<1.0 : https://github.com/openstack/keystone/blob/stable/icehouse/requirements.txt#L2 I don't now anything about this lib/infra : does it really need to install unconditionally the last pbr ? Is my use case of installing older releases with devstack/master not supported ? Thanks. Emmanuel Cazenave -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150630/f47a013e/attachment.html>