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HTCondor-based GitHub Runners

This repo implements the logic necessary to run GitHub runners as virtual machines managed by a HTCondor system.

From an HTCondor access point, one can run:

htcondor-gh-runner -org chtc --repo pelican --token-file token_file --working-dir working_dir1 --group ghrunner-1

The script will generate a DAG and maintain a workforce of GitHub runners. The --max-idle argument (default 3) controls the maximum number of idle runners allowed at a given time; the number of runners will be decreased if there are too many idle. The --max-runners argument (default 10) controls the maximum total number of runners.

Notes:

  • The runner can be attached to either a repository or an entire organization.
  • The token_file should contain a GitHub personal access token. These tokens must have admin read/write rights to the repository or organization specified.
  • Only one DAG can be running for a runner "group". If you start multiple sets of runners, ensure they all use unique group names.
  • The VM image is taken from the OSDF; the current default is osdf:///chtc/PUBLIC/bbockelm/alma_9.2-v4.qcow2.