1.2.1

⭐ New Features

• Configuration Key Prefix Updated

  • The configuration key prefix has been updated from kubernetes.handler to kubernetes.sigterm-handler.
  • You can now manage handler-related settings using the new prefix in your configuration files.

• Termination Message Logging Feature Added

  • Implemented functionality to log a termination message to a specified path when the application receives a SIGTERM signal.
  • This allows Kubernetes environments to record and analyze the Pod's termination state and reason after receiving a SIGTERM signal.
  • Termination messages can be configured with the following settings:

    kubernetes:
      sigterm-handler:
        enabled: true                                # Enable or disable the handler (default: true)
        exit-code: 0                                # Exit code to use upon termination (default: 0)
        termination-message-path: /dev/termination-log  # Path to log the termination message (default: not set)
        termination-message: SIGTERM signal received...  # Content of the termination message (default: SIGTERM signal received. Application has been terminated successfully.)
    

  • After the application terminates, you can view the Pod's termination message using commands like kubectl get pod. Below is an example of the termination message:

    state:
      terminated:
        containerID: containerd://7935f0bcfd27b2d01f900029746261e0cdad8bcdbd5a7
        exitCode: 0
        finishedAt: "2024-11-29T20:22:26Z"
        message: SIGTERM signal received. Application has been terminated successfully.
        reason: Completed
        startedAt: "2024-11-29T20:20:42Z"
    

  • Note: The default value for terminationMessagePath in Kubernetes is /dev/termination-log. You can customize this path to log the termination message to a desired file location.

🔍 Test Enhancements

• Tests for Termination Message Path and Content Validation Added
  • Added tests to verify that the correct termination message is logged to the specified path when the application terminates.
  • These tests read and validate the content of the termination message file from within the container.

❤️ Contributors

• @joon6093

  Thank you to all the contributors for this release!

한국어 버전은 다음 링크에서 확인할 수 있습니다: 한국어 릴리스 노트 보기