# For container images rebuilds, we always get two ODCS composes:
# - Pulp compose with latest shipped versions of packages. The
#   [repo] name of this compose in its .repo file is the same as
#   name of content_set from which compose was generated.
# - Koji tag compose with packages from Errata advisory with which
#   we rebuild the container image. The [repo] name of this compose
#   in its .repo file is "odcs-N" where N is ID of compose.
# We could just rebuild container image using these two ODCS
# composes directly, BUT some Dockerfiles do following:
#
# RUN yum-config-manager --disable \* &> /dev/null &&
#     yum-config-manager --enable rhel-7-server-rpms &&
#     yum-config-manager --enable rhel-7-server-optional-rpms &&
#     yum-config-manager --enable rhel-server-rhscl-7-rpms
#
# This means that they would disable our "odcs-N" repository and
# enable only the Pulp repositories. This means that RPMs from
# Errata advisory would never get in.
#
# To workaround that, we have to generate new compose which merges
# Pulp compose and odcs-N compose together, uses the latest NVRs
# of packages from both and keeps the [repo] name of the Pulp
# repository in the .repo file of resulting compose.
#
# That way, the "rhel-7-server-rpms" repository from example above
# contains packages from Pulp AND also so far unreleased
# packages from Errata advisory.