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AGENTS.md

Container image (UBI9) with Python scripts, wrappers, and templates used by Tekton tasks in release-service-catalog.

Repository Structure

  • pyxis/ — Pyxis API wrapper (container images, signatures, metadata, GraphQL)
  • pubtools-pulp-wrapper/ — CDN push via Pulp/Exodus
  • pubtools-marketplacesvm-wrapper/ — Cloud marketplace pushes via StArMap
  • publish-to-cgw-wrapper/ — Content Gateway publishing (for push-artifacts-to-cdn)
  • developer-portal-wrapper/ — Content Gateway publishing (for push-disk-images)
  • kafka/ — Kafka producer/consumer
  • scripts/python/helpers/ — Shared helpers (auth, HTTP, retry, tekton results, file I/O, OSIDB)
  • scripts/python/tasks/ — Python task implementations (e.g., check_embargoed_cves)
  • scripts/bash/tasks/ — Bash task implementations (e.g., check-embargoed-cves)
  • templates/ — Jinja2 templates (advisory.yaml.jinja, GraphQL)
  • utils/ — General utilities (apply_template, get_resource, find_matching_purl)
  • integration-tests/ — Orchestration harness that detects which catalog E2E suites are affected by utils changes, patches a temporary catalog fork with the new image, and runs the matching tests

Python

  • Python 3.12+. Use | union syntax, not Union[] or Optional[].
  • from __future__ import annotations at the top of every module.
  • Type hints on all function signatures.
  • Docstrings on every module and public function (triple-double-quote, imperative mood).
  • Black formatter, line length 95. Flake8 linter, line length 95, E203 ignored.
  • Named loggers: LOGGER = logging.getLogger("module_name").
  • argparse for CLI arguments; env vars for Tekton-injected config.
  • Entry point: if __name__ == "__main__": raise SystemExit(main()).
  • Exception chaining: always use raise ... from e.
  • File-based credentials via mounted secrets, not bare env vars for secrets.
  • Retry with exponential backoff: use retry.retry_with_exponential_backoff() from helpers.
  • HTTP requests: use http_client.get_text() from helpers (retries, 429/404 backoff built in).
  • Tekton result files: use tekton.result_paths_from_env() to read env var paths, tekton.CheckStepError for step failures.
  • Cross-cutting helpers go in scripts/python/helpers/; task scripts go in scripts/python/tasks/.

Testing

  • pytest with pytest-cov. Run: uv sync --dev && uv run pytest.
  • Unit tests are co-located with source files (e.g., pyxis/test_pyxis.py next to pyxis/pyxis.py).
  • Exception: utils/ has tests in utils/tests/.
  • Mocking with unittest.mock: use patch, MagicMock, monkeypatch for env vars.
  • Inject dependencies as callable kwargs with real defaults, replaced only in tests.
  • Integration tests live in integration-tests/ and are not run by pytest.
  • Test function names: test_<what_is_being_tested>. Type-hint test functions with -> None.

Commits

  • Conventional commits: (chore|docs|feat|fix|refactor|revert|style|test)(<JIRA-id>): <lowercase message>
  • Max 72 characters for both title and body lines. Enforced by gitlint in CI.
  • All commits must be cryptographically signed (git commit -S).
  • When generating commits with the assistance of an AI tool, add an Assisted-by: <AI-agent> trailer.

Build

  • Container image based on UBI. Dependencies managed with uv (see pyproject.toml).
  • CI runs Black, Flake8, pytest with coverage, yamllint, and gitlint on every PR.

Key Patterns

  • Some task scripts write results to Tekton result files via tekton.result_paths_from_env().
  • Wrapper scripts call external tools (pubtools-pulp, pubtools-marketplacesvm, etc.) via subprocess or library APIs.