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Release 4.1.0#52

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renecannao merged 1 commit intomasterfrom
release-4.1.0
Mar 24, 2026
Merged

Release 4.1.0#52
renecannao merged 1 commit intomasterfrom
release-4.1.0

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@renecannao renecannao commented Mar 24, 2026 •
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Release 4.1.0

Bump RELEASE_VERSION from 4.0.0 to 4.1.0.

What's new since 4.0.0

ProxySQL Integration

  • Built-in pre/post failover hooks that update ProxySQL hostgroups via Admin API
  • ProxySQL topology query API (/api/proxysql/servers)
  • CLI commands: proxysql-test, proxysql-servers
  • Bug fix: interpolateParams=true for ProxySQL Admin protocol compatibility

Observability

  • Prometheus metrics endpoint (/metrics) with 6 orchestrator-specific metrics
  • Kubernetes health endpoints: /health/live, /health/ready, /health/leader

API Modernization

  • Replaced go-martini with chi router (100+ routes migrated)
  • New /api/v2/ endpoints with structured JSON responses and proper HTTP status codes

Architecture

  • Database provider abstraction layer (MySQL provider, foundation for PostgreSQL)

Testing & CI

  • Functional test suite: 61 automated tests against real MySQL topology + ProxySQL
  • Docker Compose test infrastructure with MySQL 8.4 + ProxySQL
  • Real failover testing (graceful takeover + hard failover) in CI
  • Fixed CI: gofmt, go vet, golangci-lint v2, updated build scripts for Go modules

Test plan

  • All CI workflows pass
  • 61 functional tests pass in CI
  • Manually validated against real MySQL 8.4 + ProxySQL

Summary by CodeRabbit

  • Chores
    • Release version updated to 4.1.0.

Copilot AI review requested due to automatic review settings March 24, 2026 11:47
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gemini-code-assist bot commented Mar 24, 2026

Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request marks the release of version 4.1.0, bringing a substantial set of new features and improvements. Key areas of enhancement include deeper integration with ProxySQL, expanded observability capabilities, modernization of the API, and significant architectural advancements. The release also benefits from a more robust testing and continuous integration pipeline, ensuring greater stability and reliability.

Highlights

  • ProxySQL Integration: Introduced built-in pre/post failover hooks for updating ProxySQL hostgroups via Admin API, added a ProxySQL topology query API, and new CLI commands (proxysql-test, proxysql-servers). A bug fix for interpolateParams=true was also included for ProxySQL Admin protocol compatibility.
  • Observability: Added a Prometheus metrics endpoint (/metrics) exposing 6 orchestrator-specific metrics and Kubernetes health endpoints (/health/live, /health/ready, /health/leader).
  • API Modernization: Replaced go-martini with the chi router, migrating over 100 routes, and introduced new /api/v2/ endpoints with structured JSON responses and proper HTTP status codes.
  • Architecture: Implemented a database provider abstraction layer, starting with a MySQL provider and laying the foundation for PostgreSQL support.
  • Testing & CI: Developed a functional test suite with 61 automated tests against real MySQL topology + ProxySQL, established Docker Compose test infrastructure with MySQL 8.4 + ProxySQL, and integrated real failover testing (graceful takeover + hard failover) into CI. CI was also fixed to include gofmt, go vet, golangci-lint v2, and updated build scripts for Go modules.
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coderabbitai bot commented Mar 24, 2026 •
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Caution

Review failed

The pull request is closed.

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 2e77f35e-48d1-4c17-b9e0-4b6a822aad49

📥 Commits

Reviewing files that changed from the base of the PR and between 1750dbf and ead5459.

📒 Files selected for processing (1)
  • RELEASE_VERSION
📝 Walkthrough

Walkthrough

The project's release version constant was incremented from 4.0.0 to 4.1.0 in the RELEASE_VERSION file, reflecting a minor version update to the software.

Changes

Cohort / File(s) Summary
Version Update
RELEASE_VERSION		 Updated release version constant from 4.0.0 to 4.1.0

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~1 minute

Poem

🐰 A hop, a skip, a version bump so small,
From four point oh to four point one for all,
The release marches forward, steady and bright,
CodeRabbit hops onward through the night! 🌙

✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Commit unit tests in branch release-4.1.0

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@renecannao renecannao merged commit 5740466 into master Mar 24, 2026
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Copilot AI reviewed Mar 24, 2026
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Pull request overview

Bumps the project’s release version marker to 4.1.0 to match the “Release 4.1.0” release cut described in the PR.

Changes:

  • Update RELEASE_VERSION from 4.0.0 to 4.1.0.

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gemini-code-assist[bot]
gemini-code-assist bot reviewed Mar 24, 2026
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Code Review

The pull request updates the RELEASE_VERSION file from 4.0.0 to 4.1.0. This version bump aligns with the significant new features and architectural changes detailed in the pull request description, such as ProxySQL integration, observability enhancements, API modernization, and a new database provider abstraction layer. The change itself is a straightforward version string update.

@coderabbitai coderabbitai bot mentioned this pull request Apr 9, 2026
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