Why Drone CI can be interesting for you? Example of Drone CI configuration using Jsonnet

.drone.jsonnet

local
  volume_cached_poetry_path = 'cached-poetry',
  volume_cached_poetry_deps = 'cached-deps',

  command_install = 'poetry install -vv',
  command_test = 'poetry run pytest .',

  step(name, commands, version='3.8') = {
    name: '%s-%s' % [name, version],
    image: 'python:%s' % version,
    commands: commands,
    volumes: [
      {
        name: volume_cached_poetry_path,
        path: '/root/.poetry',
      },
      {
        name: volume_cached_poetry_deps,
        path: '/root/.cache/pypoetry/virtualenvs',
      },
    ],
  };

{
  kind: 'pipeline',
  name: 'default',
  steps: [
    step('deps', [command_install], version='3.7'),
    step('deps', [command_install]),
    step('lint', [
      'poetry run black --check --diff .',
      'poetry run flake8 .',
      'poetry run isort --check-only --diff --recursive',
    ]),
    step('test', [command_test], version='3.7'),
    step('test', [command_test]),
    step('publish', ['poetry publish --build']),
  ],
  volumes: [
    {
      name: volume_cached_poetry_path,
      temp: {},
    },
    {
      name: volume_cached_poetry_deps,
      temp: {},
    },
  ],
}