2. Install From Source

Note

Skip to the next section if installing from RPMs

The alternative to installing the core of OnDemand using RPMs is to install from source. This tutorial will assume installation on a CentOS/RHEL 7 base. We will look at how to install the core of OnDemand, while still using some OSC-provided RPMs to ensure a functioning build without having to go into too much detail. Installation on non-RPM-based systems is possible, but installing compatible versions of certain dependencies is left as an exercise for the interested.

Tip

If you prefer an automated build and installation procedure, we provide an Ansible role for that purpose.

Note

For those familiar with developing RPM distributed software the following is going to be drawn from the OnDemand RPM specfile which can be found on Github: https://github.com/OSC/ondemand/blob/5e6623de7e72c17d858dd7f533eb817f6193e7da/packaging/ondemand.spec

Steps

• Install System Dependencies
  • Non-OSC Provided Deps
  • OSC Provided Deps
• Install OnDemand Infrastructure
• Install OnDemand Core Applications
• Finalizing From Source Installation
  • Update the Apache service environment
  • Update the sudoers list
  • Add NGINX configs for the core web apps
  • Add a cronjob to prune long running PUNs
  • Add Apache Config
  • Installation Complete