Learn the most effective strategy for freezing changes in an AWS CodeCommit repository before a production release, isolating QA testing and bug fixes, and integrating fixes into the main branch post-release. Discover how to use release branches and Git commits to streamline your development process.
Table of Contents
Question
A developer needs to freeze changes to an AWS CodeCommit repository before a production release. The developer will work on new features while a quality assurance (QA) team tests the release.
The QA testing and all bug fixes must take place in isolation from the main branch. After the release, the developer must integrate all bug fixes into the main branch.
Which solution will meet these requirements?
A. Create a release branch from the latest Git commit that will be in the release. Apply fixes to the release branch. Continue developing new features, and merge the features into the main branch. Merge the release branch into the main branch after the release.
B. Create a Git tag on the latest Git commit that will be in the release. Continue developing new features, and merge the features into the main branch. Apply fixes to the main branch. Update the Git tag for the release to be on the latest commit on the main branch.
C. Create a release branch from the latest Git commit that will be in the release. Apply fixes to the release branch. Continue developing new features, and merge the features into the main branch. Rebase the main branch onto the release branch after the release.
D. Create a Git tag on the latest Git commit that will be in the release. Continue developing new features, and merge the features into the main branch. Apply the Git commits for fixes to the Git tag for the release.
Answer
A. Create a release branch from the latest Git commit that will be in the release. Apply fixes to the release branch. Continue developing new features, and merge the features into the main branch. Merge the release branch into the main branch after the release.
Explanation
Here’s a detailed explanation of why this approach is the most suitable:
- Creating a release branch from the latest Git commit allows the developer to freeze the changes that will be included in the production release. This ensures that the QA team tests the exact version of the code that will be deployed.
- By applying bug fixes to the release branch, the QA testing and bug fixes take place in isolation from the main branch. This prevents any interference between the ongoing development of new features and the testing process.
- Continuing to develop new features and merging them into the main branch enables the developer to work on future updates without disrupting the release process. The main branch remains the central repository for all new development.
- After the release, merging the release branch back into the main branch ensures that all bug fixes are integrated into the main codebase. This keeps the main branch up to date with the latest production-ready code.
Using a release branch provides a clear separation between the production-ready code and the ongoing development, allowing for parallel work streams and reducing the risk of conflicts or errors.
Options B and D involve using Git tags, which are not suitable for managing ongoing bug fixes and integrating them back into the main branch. Option C suggests rebasing the main branch onto the release branch, which can lead to a convoluted history and potential conflicts.
Therefore, option A presents the most effective and straightforward approach to manage the production release, QA testing, bug fixes, and post-release integration in an AWS CodeCommit repository.
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