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CHANGELOG.md

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Changelog

[v3.0.0] - Prometheus Remote Write Support and E2E Test Enhancements (12th Sept 2024)

Breaking Changes

  • Configuration File Format:
    • Introduced a new structure in the configuration file to separate Prometheus local scraping and Prometheus Remote Write.
    • Users now need to update their config.yaml file to accommodate the new structure, including new sections for prometheus_local and prometheus_remote_write.

Feat

  • Prometheus Remote Write:
    • Added support for Prometheus Remote Write, allowing metrics to be sent directly to a remote Prometheus instance.
    • The remote write feature supports both Basic Auth and Bearer Token authentication, as well as optional TLS configuration for secure communication.
  • Prometheus Local and Remote Split:
    • Split the original prometheus.go file into two separate files: one for Prometheus Local metrics and one for Prometheus Remote Write, improving clarity and maintainability.
  • E2E Test Enhancements:
    • Created a new structure for self-discovering end-to-end tests that run in isolated environments. Each E2E test is automatically detected and executed in a separate job in GitHub Actions for better isolation and parallelism.
    • Added a specific E2E test for Prometheus Remote Write to ensure the metrics are correctly sent and received by the remote Prometheus server.

Documentation

  • Prometheus Documentation:
    • Updated the documentation with details on how to configure Prometheus Remote Write, including Basic Auth, Bearer Token, and TLS settings.
    • Provided examples for both local and remote Prometheus configurations, helping users understand how to transition to the new structure.

[v2.0.2] - Redis Authentication, Authorization, and TLS Support (10th Sept 2024)

Feat

  • Redis AuthN/AuthZ and TLS Support: Added support for Redis authentication (AuthN) and authorization (AuthZ) using ACLs (available from Redis 6.0+). This enables users to provide usernames and passwords for secure access to Redis instances.
  • Redis TLS Support: Introduced TLS encryption for Redis connections, allowing secure communication between Kafka Lag Go and Redis clusters.
  • Backward Compatibility: These features maintain full backward compatibility, supporting unsecured Redis instances for users who prefer non-encrypted connections.

Documentation

  • Redis Setup Guide: Updated the Redis documentation to include configuration examples for setting up authentication, authorization, and TLS.

[v2.0.1] - Minor improvements (Latest)

Feat

  • Logging Enhancements: Improved both debug and info log levels for better visibility, including additional context such as clusterName in the logs.
  • Configuration Example: Added a config.yaml example file to guide configuration setup.

Fix

  • Race Condition: Fixed a race condition in TestPersistLatestProducedOffsetsMultipleClusters, ensuring predictable order in results.
  • Mermaid Diagram: Corrected the broken Mermaid diagram in the architecture documentation to accurately reflect the application’s flow.
  • E2E Test: Updated the end-to-end tests to properly use their own configuration file (config.yaml), ensuring isolated and correct test runs.

[v2.0.0] - Breaking Change: Multi-Cluster Kafka Support

Feat

  • Multi-Cluster Support: Introduced support for multiple Kafka clusters, changing the configuration file format to allow defining multiple Kafka clusters in an array under the kafka_clusters key.

Breaking Changes

  • Removed support for the previous configuration format that assumed a single Kafka cluster.

[v1.x.x] - Initial Release

Breaking Changes

  • Single Kafka Cluster Support: Initial release supported only a single Kafka cluster.