local Pipeline(python_version, alpine_version) = {
    kind: "pipeline",
    steps: [
        {
            name: "build",
            image: "python:" + python_version + "-alpine" + alpine_version,
            pull: "always",
            commands: [
                "python -m pip install --upgrade pip==19.1.1",
                "pip install tox==3.10.0",
                "tox",
                "apk add --no-cache borgbackup",
                "tox -e end-to-end"
            ]
        }
    ]
};

[
    Pipeline("3.5", "3.9"),
    Pipeline("3.6", "3.9"),
    Pipeline("3.7", "3.9"),
    Pipeline("3.7", "3.7")
]