There is ongoing work to implement multiple regions in one of our openstack-plattforms (StackIT). This is to facilitate for geographic redundancy for services being run on top of Openstack, and to provide a migration-possibility from the old legacy datacenter network to the new software defined network. StackITs region are:

• NTNU-IT: The original region where all resources created before february 2025 is placed.
  • Purpose: The original region for general usage.
  • Located at Gløshaugen
  • Connected to the legacy datacenter-networks.
  • Is currently operational, but it is planned to be phased out when TRD1/TRD2 is fully operational.
• TRD1:
  • Purpose: the new region for 'general purpose' usage
  • Located at Gløshaugen.
  • Connected to the new software defined networks.
  • Is operational
• TRD2:
  
  • Purpose: A secondary region at another physical location than the primary region (TRD1) to facilitate for geographically distributed application on top of openstack.
  • Located at Dragvoll
  • Connected to the new software defined networks
  • Is operational

Selecting regions for your openstack resources

After logging in to the opensack web-interface you can select which region your want to use in the project selection menu:

If you use the command-line interface the you can either specify which region on a per-command basis or set a suitable value using environment variables:

$ openstack image list | wc -l
41
$ openstack image list --os-region TRD1 | wc -l
6
$ export OS_REGION_NAME=TRD1
$ openstack image list | wc -l
6