Runs tox for a project. Role Variables tox_environment Environment variables to pass in to the tox run. tox_environment_defaults Default environment variables to pass in to the tox run. Intended to allow setting a set of environment variables in a base job but to still allow specific settings on a per-job or per-variant basis. tox_envlist Which tox environment to run. Defaults to 'venv'. tox_executable Location of the tox executable. Defaults to 'tox'. tox_extra_args String of extra command line options to pass to tox. Defaults to '-vv'. zuul_work_dir Directory to run tox in.