On your admin console server:
Update or populate it with:
Replacing 'username' and 'password' with the credentials you used to download the software.
If you are installing on your own server, you may also need to add the EPEL repository before installing.
Installing / updating to the latest version
Now that you have configured the repository you can check for and install the latest version.
If you are using the pre-built image (or are upgrading):
If you are installing on your own server:
In both cases you will need to enter a 'Y' to proceed when prompted.