## Problem At the moment `gstg` and `gprd` roles for production-engineering~12972025 have a different hierarchy, for example there is no `gitlay-common` in `gstg`. Having different roles in `gstg` and `gprd` make it hard to test the rollout of configuration changes without testing it in staging, and we end up testing blindly in production since we don't have a dry-run mode in production to find out the changes that it will make. ### `gprd` ```mermaid graph TD gprd-base-stor-gitaly-common-->gprd-base-stor-gitaly-cny gprd-base-stor-gitaly-common-->gprd-base-stor-gitaly gprd-base-stor-gitaly-->gprd-base-stor-gitaly-hdd gprd-base-stor-gitaly-->gprd-base-stor-gitaly-praefect gprd-base-stor-gitaly-->gprd-base-stor-gitaly-marquee gprd-base-stor-praefect ``` ### `gstg` ```mermaid graph TD gstg-base-stor-gitaly-->gstg-base-stor-gitaly-cny gstg-base-stor-gitaly-->gstg-base-stor-gitaly-hdd gstg-base-stor-gitaly-->gstg-base-stor-gitaly-zfs gstg-base-stor-gitaly-->gstg-base-stor-gitaly-praefect-cny gstg-base-stor-praefect gstg-base-stor-praefect-cny ```