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Developer's Guide

Welcome to the development reference for Camunda's Terraform EKS module! This document provides guidance on setting up a testing environment, running tests, and managing releases.

Setting up Development Environment

To start developing or testing the EKS module, follow these steps:

  1. Clone the Repository:

  2. Navigate to Test Suite:

    • Go to the test/src directory to access the test suite.

  3. Test-Driven Development (TDD):

    • Use the Test-Driven Development approach to iterate on the module.
    • Add or modify test cases in the test suite to match the desired functionality.
    • Run tests frequently to ensure changes meet requirements.

  4. Local Development:

    • Utilize environment variables like SKIP_XXX to control certain behaviors during local development.
    • Ensure to use a unique identifier for the cluster to avoid conflicts with existing resources.

  5. Testing Tools:

    • Refer to test/README.md for instructions on setting up and using testing tools.
    • Add fixtures and test cases using Terratest and Testify to validate module functionality.

  6. Cluster Cleanup:

    • Set CLEAN_CLUSTER_AT_THE_END=false to prevent automatic cluster deletion in case of errors.
    • Optionally, manually clean up the cluster after testing by reversing this setting.

Tests in the CI

The tests in the CI can be triggered automatically by modifying terraform or test files. It will be labeled either test or terraform automatically by the labeler.

You can skip specific tests in the CI by listing them in the commit description with the prefix skip-tests: (e.g.: skip-tests:Test1,Test2). If you want to skip all tests, use skip-tests:all. Remember, if all tests are skipped, the workflow will intentionally result in a failed status. To skip tests without triggering an error, add the label testing-ci-not-necessary to the PR.

Releasing a New Version

We follow Semantic Versioning (SemVer) guidelines for versioning. Follow these steps to release a new version:

  1. Commit History:

    • Maintain a clear commit history with explicit messages detailing additions and deletions.

  2. Versioning:

    • Determine the appropriate version number based on the changes made since the last release.
    • Follow the format MAJOR.MINOR.PATCH as per Semantic Versioning guidelines.

  3. GitHub Releases:

    • Publish the new version on GitHub Releases.
    • Tag the release with the version number and include release notes summarizing changes.

Adding new GH actions

Please pin GitHub action, if you need you can use pin-github-action cli tool.

By following these guidelines, we ensure smooth development iterations, robust testing practices, and clear version management for the Terraform EKS module. Happy coding!