nightly-build: use the storage-gluster-common buildroot from CentOS CBS

Using an EPEL buildroot for CentOS packages is not correct. This can
cause problems when packages are not matching in the EPEL and CentOS
repositories.

Use the Koji profile 'cbs' provided by the centos-packager RPM to fetch
the mock-config from the CentOS CBS. Use this config to rebuild the
src.rpm so the resulting packages have correct dependencies.

Updates: #22
Signed-off-by: Niels de Vos <[email protected]>

jobs/scripts/nightly-builds/nightly-builds.sh

@@ -10,7 +10,7 @@ artifact()
 set -e
 
 # install basic dependencies for building the tarball and srpm
-yum -y install git autoconf automake gcc libtool bison flex make rpm-build mock createrepo_c
+yum -y install git autoconf automake gcc libtool bison flex make rpm-build mock createrepo_c centos-packager
 # gluster repositories contain additional -devel packages
 yum -y install centos-release-storage-common centos-release-gluster
 yum -y install python-devel libaio-devel librdmacm-devel libattr-devel libxml2-devel readline-devel openssl-devel libibverbs-devel fuse-devel glib2-devel userspace-rcu-devel libacl-devel sqlite-devel libuuid-devel
@@ -77,11 +77,17 @@ case "${CENTOS_VERSION}/${GIT_VERSION}" in
         ;;
 esac
 
+# fetch the mock buildroot configuration from the CBS
+CBS_TAG="storage${CENTOS_VERSION}-gluster-common-el${CENTOS_VERSION}-build"
+# the MOCK_ROOT should match config_opts['root'] from the mock-config
+MOCK_ROOT="${CBS_TAG}-repo_latest"
+koji -p cbs mock-config --latest --arch="${CENTOS_ARCH}" --tag="${CBS_TAG}" > /etc/mock/"${MOCK_ROOT}".cfg
+
 # do the actual RPM build in mock
 # TODO: use a CentOS Storage SIG buildroot
 RESULTDIR=/srv/gluster/nightly/${GERRIT_BRANCH}/${CENTOS_VERSION}/${CENTOS_ARCH}
 /usr/bin/mock \
-    --root epel-${CENTOS_VERSION}-${CENTOS_ARCH} \
+    --root "${MOCK_ROOT}" \
     ${MOCK_RPM_OPTS} \
     --resultdir ${RESULTDIR} \
     --rebuild ${SRPM}