Spacewalk is an open source Linux systems management solution.

Enterprise Linux and Spacewalk

If after running the installer for Enterprise Linux based distributions the repository is not available under yum repolist:

curl -sL https://rpm.nodesource.com/setup_11.x | bash -

It is then necessary to move the repo file under the custom/ directory as follows:

mv /etc/yum.repos.d/nodesource-el7.repo /etc/yum.repos.d/custom/

The nodesource repository will then show up under yum repolist. This can be further verified with yum whatprovides nodejs