1. Install Software From RPM

We will use Software Collections to satisfy majority of the following software requirements:

• Apache HTTP Server 2.4
• Ruby 2.5 with rake, bundler, and development libraries
• Node.js 10

Note

This tutorial is run from the perspective of an account that has sudo access but is not root.

1. Enable the Software Collections repositories on CentOS/RHEL 7 only:

   CentOS 7

   sudo yum install centos-release-scl
   

   RHEL 7

   sudo subscription-manager repos --enable=rhel-server-rhscl-7-rpms
   # Repository 'rhel-server-rhscl-7-rpms' is enabled for this system.
   

   Warning

   For RedHat you may also need to enable the Optional channel and attach a subscription providing access to RHSCL to be able to use this repository.

2. Add Open OnDemand’s repository hosted by the Ohio Supercomputer Center:

   sudo yum install https://yum.osc.edu/ondemand/1.8/ondemand-release-web-1.8-1.noarch.rpm
   

3. Install OnDemand and all of its dependencies:

   sudo yum install ondemand
   

4. (Optional) Install OpenID Connect with Dex package

   Note

   If authenticating against LDAP or wishing to evaluate OnDemand using ood user, you must install ondemand-dex. See Add LDAP Support for details on configuration of LDAP.

   sudo yum install ondemand-dex
   

5. (Optional) Install OnDemand SELinux support if you have SELinux enabled. For details see SELinux

   sudo yum install ondemand-selinux
   

Note

For some older systems, user ids (UID) may start at 500 and not the expected 1000. If this true for your system, you will need to modify the /etc/ood/config/nginx_stage.yml configuration file to allow these users access to OnDemand:

# /etc/ood/config/nginx_stage.yml
---

# ...

# Minimum user id required to generate per-user NGINX server as the requested
# user (default: 1000)
#
min_uid: 500

# ...