Continuous Delivery: GitHub vs GitLab

GitHub:

Github does not support manual jobs out of the box. We can only create manually triggered workflows.

• On the image we could see the GitHub Continuous Delivery mainline - a manually triggered workflow for deploying to production runs only on the latest commit in our mainline branch.
• Only the last deployed commit is marked as deployable, with no deployment actions along the way.
• Rollback is indicated on one of the earlier commits that was deployed to production.

Conclusion: We don't have an ability to deploy any version of the mainline branch, only the latest commit.

GitLab

• In the GitLab workflow, each Conitnuous Delivery pipeline on the mainline its own manual Deploy to Prod job, and each successful deployment is labeled as "Deployed".
• Each commit is marked as deployable.
• Rollback is indicated on one of the earlier commits that was deployed to production.

Conclusion: We have an ability to deploy any version of the mainline branch, not only the latest commit.

Conclusion

GitLab provides a more flexible approach to deployment, improves Continuous Delivery process, and provides easier rollback options.