High level summary
The SRE team continues work on Cardano environment improvements and general maintenance.
Some notable recent changes, updates or improvements include:
New tracing system supporting PRs in iohk-nix and cardano-node have merged, making the new tracing system the default starting with upcoming node
10.6.0
release.A dedicated aarch64-linux machine has been added to the devx-ci build cluster to improve CI performance for that arch.
Additional darwin resources will also be joining the devx-ci build cluster in the near future.
Repository Work -- Merged
Cardano-mainnet
- Dbsync snapshots machine was switched from ramdisk based tmpfs to
blockdevice tmpfs. Cardano-node pre-release has been updated to
10.5.0
, cardano-cli pre-release to10.11.0.0
and mithril tov2524.0
. Opentofu resources, just recipes and other code has been updated to transition to use of ssh over AWS SSM with the closure of port 22 ingress. Includes various improvements with cardano-parts releasev2025-06-24
. Additional details are included in the PR header. cardano-mainnet-pr-36
Cardano-node
- This PR changes the default tracing system to the new tracing system and implements support for this where needed including: nixos cardano-node service, nixos cardano-tracer pre-existing service, nixos cardano-tracer new service, nixos scripts, nixos tests, docker, workbench service tracer changes, configuration reference files, bash scripts, CI. Additional details are included in the PR header. cardano-node-pr-6133
Cardano-parts
- Cardano-node pre-release has been updated to
10.5.0
, cardano-cli pre-release to10.11.0.0
and mithril tov2524.0
. Opentofu resources, just recipes and other code has been updated to transition to use of ssh over AWS SSM with the closure of port 22 ingress. Additional details are included in the release notes. cardano-parts-release-v2025-06-24
Cardano-perf
- Adds a cgroup host volume to all client machines cardano-perf-pr-5
Cardano-playground
- Cardano-node pre-release has been updated to
10.5.0
, cardano-cli pre-release to10.11.0.0
and mithril tov2524.0
. Opentofu resources, just recipes and other code has been updated to transition to use of ssh over AWS SSM with the closure of port 22 ingress. Includes various improvements with cardano-parts releasev2025-06-24
. Additional details are included in the PR header. cardano-playground-pr-48
Devx-ci
- Adds a new dedicated aarch64-linux hetzner rx170 machine to the CI cluster, including supporting nixos hardware and config module, re-keyed secrets, new wireguard ip range assignments based on machine namespace, bootstrap script updates and removal of emulated linux builds. Additional details are included in the PR header. devx-ci-pr-132
Iohk-nix
- This PR changes the default tracing system to the new tracing system and implements support for this where needed including: cardano-lib, generic log config, generic tracing config, testnet template config, legacy generic log config, legacy testnet template config. Additional details are included in the PR header. iohk-nix-pr-594
Repository Work In Progress -- PRs and Branches
- Blockperf: https://github.com/cardano-foundation/blockperf/pull/31
- Blockperf: https://github.com/cardano-foundation/blockperf/pull/32
- Cardano-node: https://github.com/IntersectMBO/cardano-node/pull/6271
- Cardano-node: https://github.com/IntersectMBO/cardano-node/pull/6272
- Cardano-parts: https://github.com/input-output-hk/cardano-parts/pull/67
- Cardano-playground: https://github.com/input-output-hk/cardano-playground/pull/45