SRE update 2025-01-17

blog/2025-01-17-sre.md

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+---
+title: SRE Team Update
+slug: 2025-01-17-sre
+authors: johnalotoski
+tags: [sre]
+hide_table_of_contents: false
+---
+
+## High level summary
+
+The SRE team continues work on Cardano environment improvements and general maintenance.
+
+Some notable recent changes, updates or improvements include:
+
+* Sanchonet was respun after a community scheduled test hardfork to PV11
+
+* Buildkite agent modules were added to cardano-playground
+
+* Adds a latest tag GHA action to cardano-node upon new release publication
+
+## Repository Work
+
+### Cardano-parts
+* Cardano-node has been updated to `10.1.4`, cardano-cli and the -ng variant to
+  `10.1.1.0` and `10.2.0.0` respectively, and mithril to `v2450`. Colmena has
+  been updated to utilize a new pure flake evaluation approach. New nix jobs were
+  added for a new "next-gen" network spin up method, which supports network
+  creation with a fork directly to Conway and then retirement of the genesis
+  bootstrap pool in favor of on-chain registered backbone pools. CI tests to
+  support these new jobs were added. The recipe to query governance actions was
+  updated with the latest voting calculations and the output was improved with
+  color and additional reporting totals. A psql prepared statement for voting
+  activity over time was added to the postgres module. Other small miscellaneous
+  improvements and clean up were made with details available in the release
+  notes:
+  [cardano-parts-release-v2025-01-17](https://github.com/input-output-hk/cardano-parts/releases/tag/v2025-01-17)
+
+### Cardano-playground
+* Cardano-node has been updated to `10.1.4`, mithril to `v2450` and all envs
+  deployed. Buildkite modules were added to support fast buildkite agent scaling
+  in any AWS region. Sanchonet was respun after a planned community hard fork test.
+  The recipe to query governance actions was updated with the latest voting
+  calculations. A new `start-demo-ng` recipe was added to utilize a new
+  "next-gen" spin up method. More detail is available in the PR description:
+  [cardano-playground-pull-39](https://github.com/input-output-hk/cardano-playground/pull/39)
+
+### Cardano-mainnet
+* Cardano-node has been updated to `10.1.4` and mithril to `v2450` and all machines
+  deployed. The mainnet canary dashboard was updated with a governance voting
+  analysis panel. The recipe to query governance actions was updated with the
+  latest voting calculations. More detail is available in the PR description:
+  [cardano-mainnet-pull-29](https://github.com/input-output-hk/cardano-mainnet/pull/29)
+
+### Cardano-node
+* Adds GHA steps to push a latest tag for node and api containers on release
+  events where the tag is the latest release. Updates the docker-compose to
+  default to the latest tag and bumps iohk-nix for an updated target number of
+  established peers. Fixes related configs to pass CI checks.
+  [cardano-node-pull-6057](https://github.com/IntersectMBO/cardano-node/pull/6057)

quarterly/2024-Q4-sre.md

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+---
+title: SRE Q4 2024 Update
+slug: 2024-Q4-sre
+authors: johnalotoski
+tags: [sre]
+hide_table_of_contents: false
+---
+
+## 2024-10 - 2024-12
+
+### Main achievements
+
+In addition to ongoing general maintenance and support of cardano environments,
+some highlights of SRE achievements for this quarter include:
+
+* Cardano-parts started offering regular
+  [releases](https://github.com/input-output-hk/cardano-parts/releases) to ease
+  the process of upgrading rather than only PR merges with migration notes.
+
+* All IOE cardano-parts supported node environments, including preview,
+  preprod, sanchonet, mainnet were upgraded through various cardano-node releases
+  including `10.0.0-pre`, `10.1.0-pre`, `10.1.1`, `10.1.2`, and finally into
+  `10.1.3` by the end of December.
+
+* All environments were migrated from deprecated grafana agent to grafana alloy.
+
+* Sanchonet environment was re-spun twice; once for cardano-node
+  `10.0.0-pre` and once for a community scheduled PV11 hardfork test.
+
+* Preview and preprod networks were successfully forked into Conway era, Plomin
+  protocol version `10.0`.
+
+* Private and shelley-qa chains were retired after fulfilling their intended
+  goal.
+
+* Remaining cardano-world legacy resources were retired, replaced by
+  cardano-playground.
+
+Details of this and other SRE work can be found in the biweekly SRE reports.
+
+### Next steps
+
+* Switch to the new cardano-node tracing system as default and retire use of
+  the legacy tracing system, including dashboards, alerts, cardano-tracer and
+  cardano-node nixos service updates as well as container image required changes.
+
+* Continue cardano-parts and operations improvements.