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SRE Team Update

· 2 min read
John Lotoski

High level summary​

The SRE team continues work on Cardano environment improvements and general maintenance.

Some notable recent changes, updates or improvements include:

  • A new cloud tagging resource effort is underway to better attribute and track project expenses, implemented largely via infrastructure-as-code updates with appropriate secrets handling.

  • As part of the 10.6.0 pre-release candidate SRE to dev feedback loop, a memory leak was identified in the pre-release candidate when LMDB ledger backend was used. Further testing, deployment and debugging work helped identify root cause and a fix was implemented.

  • SRE team facilitated the passage of a governance action on the preprod network, likely to be followed by a mainnet proposal and full community vote.

  • Aarch64 cardano-node nix builds, binary release artifacts and OCI containers will be added to the cardano-node repo in the near future.

  • SRE team is providing support to the Midnight Scavenger Mine project which is now live.

Repository Work -- Merged​

Cardano-monitoring​

  • Adds new resource tags to both CloudFormation and tofu resources: owner, project, costCenter

  • Updates the pre-existing organization and environment tags

  • Treats costCenter tag as secret and adds a corresponding secrets file

  • Updates justfile, CloudFormation state template and tofu cluster definition files to accommodate

  • Adds some default resource tofu defns in prep for ipv6 and default resource tagging

    cardano-monitoring-pr-3

Cardano-perf​

  • Adds new resource tags to both CloudFormation and tofu resources: owner, project, costCenter

  • Updates the pre-existing organization and environment tags

  • Treats costCenter tag as secret and adds a corresponding secrets file

  • Updates justfile, CloudFormation state template and tofu cluster definition files to accommodate

  • Adds some default resource tofu defns in prep for ipv6 and default resource tagging

    cardano-perf-pr-6

Ouroboros-network-ops (Ready to merge -- waiting to align with next cardano-parts release)​

  • Parts was bumped from v2025-06-24 to post-v2025-08-14 release at next-2025-08-14

  • Updates for breaking changes were applied.

  • Adds new resource tags to both CloudFormation and tofu resources: owner, project, costCenter

  • Updates the pre-existing organization and environment tags

  • Treats costCenter tag as secret and adds a corresponding secrets file

  • Updates justfile, CloudFormation state template and tofu cluster definition files to accommodate

    ouroboros-network-ops-pr-30

Repository Work In Progress -- PRs and Branches​