Network setup improvements for dev

Some actions that should be done to improve the setup of dev-1 but can be done after we finished the migration:

  1. Adding a bastion for ssh access
  2. Creating a cloud NAT device
  3. Removing the public IP from the instance and switching to a GLB for Ingress
  4. Adding documentation on how to configure administrator ssh access to the new dev instance (effectively the same thing we do for our other environments already)
Edited by Henri Philipps