Contributing

Welcome to OpenTelemetry Demo Webstore repository!

Before you start - see OpenTelemetry general contributing requirements and recommendations.

Join a SIG Call

We meet weekly Monday's at 8:15 AM PT. The meeting is subject to change depending on contributors' availability. Check the OpenTelemetry community calendar for specific dates and Zoom meeting links.

Meeting notes are available as a public Google doc. For edit access, get in touch on Slack.

Sign the CLA

Before you can contribute, you will need to sign the Contributor License Agreement.

Find a Buddy and Get Started Quickly

If you are looking for someone to help you find a starting point and be a resource for your first contribution, join our Slack channel and find a buddy!

Create your CNCF Slack account and join the otel-community-demo channel.
Post in the room with an introduction to yourself, what area you are interested in (check issues marked with help wanted), and say you are looking for a buddy. We will match you with someone who has experience in that area.

Your OpenTelemetry buddy is your resource to talk to directly on all aspects of contributing to OpenTelemetry: providing context, reviewing PRs, and helping those get merged. Buddies will not be available 24/7, but is committed to responding during their normal contribution hours.

Development Environment

You can contribute to this project from a Windows, macOS or Linux machine. The first step to contributing is ensuring you can run the demo successfully from your local machine.

On all platforms, the minimum requirements are:

Docker
Docker Compose v2.0.0+

Clone Repo

Clone the Webstore Demo repository:

git clone https://github.com/open-telemetry/opentelemetry-demo.git

Open Folder

Navigate to the cloned folder:

cd opentelemetry-demo/

Gradle Update [Windows Only]

Navigate to the Java Ad Service folder to install and update Gradle:

cd .\src\adservice\
.\gradlew installDist
.\gradlew wrapper --gradle-version 7.4.2

Run Docker Compose

Start the demo (It can take ~20min the first time the command is executed as all the images will be build):

docker compose up -d

Verify the Webstore & the Telemetry

Once the images are built and containers are started you can access:

Webstore: https://localhost:8080/
Jaeger: https://localhost:8080/jaeger/ui/
Grafana: https://localhost:8080/grafana/
Feature Flags UI: https://localhost:8080/feature/
Load Generator UI: https://localhost:8080/loadgen//

Review the Documentation

The Demo team is committed to keeping the demo up to date. That means the documentation as well as the code. When making changes to any service or feature remember to find the related docs and update those as well. Most (but not all) documentation can be found on the OTel website under Demo docs.

Create Your First Pull Request

How to Send Pull Requests

Everyone is welcome to contribute code to opentelemetry-demo via GitHub pull requests (PRs).

To create a new PR, fork the project in GitHub and clone the upstream repo:

Note Please fork to a personal GitHub account rather than a corporate/enterprise one so maintainers can push commits to your branch. Pull requests from protected forks will not be accepted.

git clone https://github.com/open-telemetry/opentelemetry-demo.git

Navigate to the repo root:

cd opentelemetry-demo

Add your fork as an origin:

git remote add fork https://github.com/YOUR_GITHUB_USERNAME/opentelemetry-demo.git

Check out a new branch, make modifications and push the branch to your fork:

$ git checkout -b feature
# change files
# Test your changes locally.
$ docker compose up -d --build
# Go to Webstore, Jaeger or docker container logs etc. as appropriate to make sure your changes are working correctly.
$ git add my/changed/files
$ git commit -m "short description of the change"
$ git push fork feature

Open a pull request against the main opentelemetry-demo repo.

How to Receive Comments

If the PR is not ready for review, please mark it as draft.
Make sure CLA is signed and all required CI checks are clear.
Submit small, focused PRs addressing a single concern/issue.
Make sure the PR title reflects the contribution.
Write a summary that helps understand the change.
Include usage examples in the summary, where applicable.
Include benchmarks (before/after) in the summary, for contributions that are performance enhancements.

How to Get PRs Merged

A PR is considered to be ready to merge when:

It has received approval from Approvers / Maintainers.
Major feedbacks are resolved.
It has been open for review for at least one working day. This gives people reasonable time to review.
The documentation and Changelog have been updated to reflect the new changes.
Trivial changes (typo, cosmetic, doc, etc.) don't have to wait for one day.

Any Maintainer can merge the PR once it is ready to merge. Note, that some PRs may not be merged immediately if the repo is in the process of a release and the maintainers decided to defer the PR to the next release train.

If a PR has been stuck (e.g. there are lots of debates and people couldn't agree on each other), the owner should try to get people aligned by:

Consolidating the perspectives and putting a summary in the PR. It is recommended to add a link into the PR description, which points to a comment with a summary in the PR conversation.
Tagging subdomain experts (by looking at the change history) in the PR asking for suggestion.
Reaching out to more people on the CNCF OpenTelemetry Community Demo Slack channel.
Stepping back to see if it makes sense to narrow down the scope of the PR or split it up.
If none of the above worked and the PR has been stuck for more than 2 weeks, the owner should bring it to the OpenTelemetry Community Demo SIG meeting.

Making a new release

Maintainers can create a new release when desired by following a few steps.

Create a new Pull Request that updates the IMAGE_VERSION environment variable in .env to the new version number.
Draft a new release, creating a new tag in the format x.x.x based on main. Automatically generate release notes. Prepend a summary of the major changes to the release notes.
Click 'Publish Release'.

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