High level summary
The SRE team continues work on Cardano environment improvements and general maintenance.
Some notable recent changes, updates or improvements include:
- An on-going, intermittent outage with our nix upstream cache storage provider has been investigated. While the issue still persists and we work with the provider to get it resolved, it appears to be isolated to traffic routing through a particular provider colocation. Installing a wireguard tunnel for our cache traffic to route around the affected colo has brought our build farm machines back to normal operation until the provider resolves the issue.
This biweekly is shorter than usual as SRE members attended Nixcon 2025 to stay sharp on nix skills, relevant technical knowledge and tooling that can benefit our IOE environments and operations. Additionally, the remaining time was skewed towards internal operations rather than feature development during this period. A new team member has also joined the SRE team!
Repository Work -- Merged
Devx-ci
- Adds an independent pin for GH runner bumps, and adds use of an r2 wg tunnel to eu-central-1 to work around the problematic CF ARN colo reads. devx-ci-pr-134
Repository Work In Progress -- PRs and Branches
- Cardano-node: https://github.com/IntersectMBO/cardano-node/pull/6300
- Iohk-nix: https://github.com/input-output-hk/iohk-nix/pull/602
- Cardano-playground: https://github.com/input-output-hk/cardano-playground/pull/51
- Cardano-parts: https://github.com/input-output-hk/cardano-parts/pull/74