Limit legacy pbr peridioc runs
These jobs run on the feature/0.10 branch and fail. The v2 jobs run on
master only, so run the job under v3 under master only as well.
Example:
- legacy-pbr-installation-dsvm
periodic:
jobs:
- - legacy-pbr-installation-dsvm
- - legacy-pbr-installation-dsvm-upstream
+ - legacy-pbr-installation-dsvm:
+ branches: master
+ - legacy-pbr-installation-dsvm-upstream:
+ branches: master
post:
jobs:
- openstack-tox-cover
