DLRN

DLRN builds and maintains yum repositories following OpenStack uptream commit streams.

Documentation is available at http://dlrn.readthedocs.org/en/latest/

Setup

# yum install git createrepo python-virtualenv mock gcc \
              redhat-rpm-config rpmdevtools httpd libffi-devel \
              openssl-devel

Add the user you intend to run as to the mock group and login again.

$ git clone https://github.com/openstack-packages/DLRN.git

If you want to serve the built packages and the status reports, enable the httpd service, and then either add a section in the server configuration to map a URL to the data directories, or create a symbolic link:

# systemctl start httpd
# cd /var/www/html
# ln -s <datadir>/repos .

Preparing

$ cd DLRN
$ virtualenv ../dlrn-venv
$ . ../dlrn-venv/bin/activate
$ pip install --upgrade pip
$ pip install -r requirements.txt
$ python setup.py develop

Edit projects.ini if needed.

Bootstrapping

Some of the projects require others to build. As a result, use the special option --order to build in the order computed from the BuildRequires and Requires fields of the spec files when you bootstrap your repository.

$ dlrn --config-file projects.ini --order

When using this special option, a special variable repo_bootstrap is defined in the specs, with a value of 1. You can use this variable if needed, to break dependency loops between packages. For example:

%if 0%{?repo_bootstrap} == 0
BuildRequires: package-with-circular-dependency
%endif

Running

Once all the packages have been built once, you can get back to build the packages in the order of the timestamps of the commits.

$ dlrn --config-file projects.ini

Troubleshooting

If you interrupt dlrn during mock build you might get an error

OSError: [Errno 16] Device or resource busy: '/var/lib/mock/dlrn-fedora-x86_64/root/var/cache/yum'

Solution is to clear left-over bind mount as root:

# umount /var/lib/mock/dlrn-fedora-x86_64/root/var/cache/yum

Other requirements

If the git clone operation fails for a package, DLRN will try to remove the source directory using sudo. Please make sure the user running DLRN can run rm -rf /path/to/dlrn/data/* without being asked for a password, otherwise DLRN will fail to process new commits.

yeweiasia / DLRN