7: Disable centos-sclo-rh-source repo

It disappeared from Vault...

7/Dockerfile

@@ -30,7 +30,9 @@ RUN groupadd -g 1000 jenkins \
  && echo 'Defaults:jenkins !requiretty' | tee -a /etc/sudoers \
  && echo 'jenkins ALL=(ALL:ALL) NOPASSWD: ALL' | tee -a /etc/sudoers
 
-RUN yum install -y centos-release-scl centos-release-scl-rh scl-utils-build
+# Note: we are disabling scl-rh source since it disappeared from vault
+RUN yum install -y centos-release-scl centos-release-scl-rh scl-utils-build \
+ && sed -i -e '/centos-sclo-rh-source/,+5 s/^/#/' /etc/yum.repos.d/CentOS-SCLo-scl-rh.repo
 
 RUN wget -O /etc/yum.repos.d/ICINGA-release.repo \
  https://packages.icinga.com/epel/ICINGA-release.repo