Overview

Background

Within the EdWeb infrastructure, the varnish and memcache servers have already reached their operating system (CentOS 6)  end of life. The move of varnish to CentOS 7 is believed to be relatively straightforward and has been done in the DEV environment by support. However, the upgrade of the memcache servers requires code changes and needs to be delivered as a project given the system's history of sensitivity to losing individual cache components. This project will oversee the necessary infrastructure upgrades to the affected servers, including the remaining varnish servers.

Scope

In Scope:

• Review cache server infrastructure
• Replace/update 18 memcache servers (2 x Dev, 4 x Test, 4 x Staging, 4 x Training, 4 x Live) in the EdWeb infrastructure  
• Replace/update 16 memcache servers (4 x Test, 4 x Staging, 4 x Training, 4 x Live) in the EdWeb infrastructure
• Review bamboo plans and deployment documentation 
• Update TAD and build documentation 

Out of scope

Replacement/upgrade of any other servers within the EdWeb infrastructure.

Objectives and Deliverables

Benefits

The main benefit will be that EdWeb will run on supported infrastructure ensuring the service remains secure. This is a benefit that is University-wide as it impacts on all users.

A second benefit is that, with the successful upgrade of these servers EdWeb will continue to work as expected - something that will impact all EdWeb users and all website visitors  

Success Criteria

The achievement of the main objectives will determine the success, or otherwise, of this project.

Project Milestones