1. Create Geo node for staging.gitlab.com

We need to create the geo node that will be used for staging.gitlab.com as an all-in-one box. This includes

• Replication between primary and secondary needs to work (#32238 (closed))
• Create the secondary node (#37926 (closed)) (#37428 (closed) may be part of this work)
• Monitoring (#32240 (closed))

Resolving the problem with replication and installing GitLab onto a secondary node can be done in parallel. Obviously the new installation cannot function as a secondary until the replication is working.

Monitoring can then be addressed because we will know what form the new node has taken.