NOTE: This README contains information for the
.github
directory but cannot be located there because it will overwrite the repo README.
This directory contains workflows and scripts to support our CI infrastructure that runs on GitHub Actions.
pull.yml
) is run on PRs and on main.trunk.yml
) is run on trunk to validate incoming commits. Trunk jobs are usually more expensive to run so we do not run them on PRs unless specified.periodic.yml
) is a subset of trunk CI that is run every few hours on main.Templates written in Jinja are located in the .github/templates
directory and used to generate workflow files for binary jobs found in the .github/workflows/
directory. These are also a couple of utility templates used to discern common utilities that can be used amongst different templates.
You will need jinja2
in order to regenerate the workflow files which can be installed using:
pip install -r .github/requirements/regenerate-requirements.txt
Workflows can be generated / regenerated using the following command:
.github/regenerate.sh
New generated binary workflows can be added in the .github/scripts/generate_ci_workflows.py
script. You can reference examples from that script in order to add the workflow to the stream that is relevant to what you particularly care about.
Different parameters can be used to achieve different goals, i.e. running jobs on a cron, running only on trunk, etc.
The label ciflow/trunk
can be used to run trunk
only workflows. This is especially useful if trying to re-land a PR that was reverted for failing a non-default
workflow.
Currently most of our self hosted runners are hosted on AWS, for a comprehensive list of available runner types you can reference .github/scale-config.yml
.
Exceptions to AWS for self hosted:
New runner types can be added by committing changes to .github/scale-config.yml
. Example: https://github.com/pytorch/pytorch/pull/70474
NOTE: New runner types can only be used once the changes to
.github/scale-config.yml
have made their way into the default branch
In order to test changes to the builder scripts:
builder_repo
and builder_branch
in .github/templates/common.yml.j2
..github/regenerate.sh
(see above).ciflow/binaries
to trigger the builds.