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SRE Q1 2025 Update

· 2 min read
John Lotoski

2025-01 - 2025-03​

Main achievements​

In addition to ongoing general maintenance and support of cardano environments, some highlights of SRE achievements for this quarter include:

  • All IOE cardano-parts supported node environments, including preview, preprod, sanchonet, mainnet were upgraded through cardano-node releases including 10.1.4 and 10.2.1 (for pre-release configured machines).

  • Sanchonet was respun to test the hard fork mechanism to protocol version 11 with community participation.

  • A nixos buildkite agent module was ported to cardano-playground to support custom QA testing workflows.

  • A nixos AWS ephemeral block device module was added to cardano-parts to support upcoming cardano-node UTXO-HD features which leverage fast NVMe block devices.

  • The sanchonet cardano network was retired and handed over to community as it had fulfilled its purpose as an early testing network for Voltaire era governance features.

  • Cardano node and submit-api container improvements were made to reduce prior inconsistencies, add a new useful mode of operation, add useful configuration references and improve documentation.

  • The cardano-node flake closure was optimized and reduced in size 18 percent.

  • The nix hydra machine used for cardano-node builds was migrated to upgraded hardware allowing for better evaluation concurrency and therefore an enhanced developer ci experience.

Details of this and other SRE work can be found in the biweekly SRE reports.