Automatic include epel for redhat/fedora/centos versions

install/slapos.sh

@@ -24,6 +24,46 @@ if [[ ! ${DISTRO} =~ (wheezy) ]]; then
     fi
 fi
 
+if is_fedora && [[ $DISTRO == "rhel7" ]]; then
+    # RHEL requires EPEL for many Open Stack dependencies
+
+    # NOTE: We always remove and install latest -- some environments
+    # use snapshot images, and if EPEL version updates they break
+    # unless we update them to latest version.
+    if sudo yum repolist enabled epel | grep -q 'epel'; then
+        uninstall_package epel-release || true
+    fi
+
+    # This trick installs the latest epel-release from a bootstrap
+    # repo, then removes itself (as epel-release installed the
+    # "real" repo).
+    #
+    # You would think that rather than this, you could use
+    # $releasever directly in .repo file we create below.  However
+    # RHEL gives a $releasever of "6Server" which breaks the path;
+    # see https://bugzilla.redhat.com/show_bug.cgi?id=1150759
+    cat <<EOF | sudo tee /etc/yum.repos.d/epel-bootstrap.repo
+[epel-bootstrap]
+name=Bootstrap EPEL
+mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-7&arch=\$basearch
+failovermethod=priority
+enabled=0
+gpgcheck=0
+EOF
+    # Enable a bootstrap repo.  It is removed after finishing
+    # the epel-release installation.
+    yum-config-manager --enable epel-bootstrap
+    yum_install epel-release || \
+        die $LINENO "Error installing EPEL repo, cannot continue"
+    # EPEL rpm has installed it's version
+    rm -f /etc/yum.repos.d/epel-bootstrap.repo
+
+    # ... and also optional to be enabled
+    is_package_installed yum-utils || install_package yum-utils
+    yum-config-manager --enable rhel-7-server-optional-rpms
+
+fi
+
 is_package_installed ansible || install_package ansible
 
 rm -rf /tmp/$PLAYBOOK_FILENAME /tmp/$PLAYBOOK_BASE_FOLDER