Adding reusable and composite action katas #119
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
michaelin
requested changes
Oct 28, 2025
Contributor
michaelin
left a comment
michaelin
left a comment
There was a problem hiding this comment.
There are a couple of problems in the action and the workflows in the lab that causes the workflow to fail. They should be fixed.
For readability and to reduce the risk of copy paste errors, I'd also like the print_summary_text script extracted into a separate file.
Other than that, it could be nice if the exercices follow the same template as the other exercises. Given the time until the first run, that is not a blocker, though.
michaelin
reviewed
Nov 4, 2025
Contributor
michaelin
left a comment
michaelin
left a comment
There was a problem hiding this comment.
I've extracted the formatting script into a separate script. I also added a missing output from the reusable action. Other than that, I've mainly made some minor style updates.
Co-authored-by: Michael Ingeman-Nielsen <[email protected]>
Co-authored-by: Michael Ingeman-Nielsen <[email protected]>
Co-authored-by: Michael Ingeman-Nielsen <[email protected]>
Co-authored-by: Michael Ingeman-Nielsen <[email protected]>
Co-authored-by: Michael Ingeman-Nielsen <[email protected]>
michaelin
force-pushed
the
new-exercise/composite-reusable-actoin
branch
from
a4177eb to
f9e71e9
Compare
michaelin
approved these changes
Nov 4, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This pull request introduces a hands-on lab for creating and using composite actions and reusable workflows in GitHub Actions. The main additions are a Python helper script for summarizing a list of numbers, step-by-step markdown guides for building a composite action around this script, and instructions for composing it into reusable workflows and consumer jobs. These changes provide practical examples for learning how to pass inputs/outputs between actions and workflows.
Composite Action and Python Helper:
ci/print_summary.py, a Python script that reads a JSON array of numbers and prints a summary (count, sum, average, min, max); includes error handling for input validation.labs/composite-action.md, a lab guide explaining how to create a composite action that pipes numbers to the Python helper, exposes outputs, and is called from a workflow.Reusable Workflow and Consumer Example:
labs/reusable-2.md, a lab guide for building a reusable workflow that calls the composite action, formats the summary output, and exposes both JSON and human-readable outputs. Includes example consumer workflow and tips for testing.