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libreqos-python-workflow

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Shared LibreQoS workflow for Python orchestration, scheduler, integrations, and helper scripts under src/. Use when changing LibreQoS.py, scheduler.py, integration*.py, integrationCommon.py, Python helpers, or Python tests around shaping and generated config files.

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LibreQoS Python Workflow

Use this skill for Python work under src/.

Scope

  • Main Python shaper entrypoint: src/LibreQoS.py
  • Scheduler/orchestration: src/scheduler.py
  • Shared importer graph/output logic: src/integrationCommon.py
  • Importers and helper scripts: src/integration*.py, src/lqTools.py, src/configMigrator.py, src/csvToNetworkJSON.py, src/cidrToHosts.py, src/mikrotikFindIPv6.py
  • Python tests: src/test_*.py, src/bakery_integration_test.py, src/testGraph.py

Architecture

  • LibreQoS.py is the live shaper/orchestrator. It validates inputs, builds queueing state, coordinates TC/XDP work through liblqos_python, and writes runtime artifacts such as queuingStructure.json, statsByCircuit.json, and statsByParentNode.json.
  • scheduler.py runs integrations, applies overrides, updates scheduler status for the Web UI, and triggers full or partial refreshes.
  • integrationCommon.py is the shared graph/output layer for integrations and writes network.json and ShapedDevices.csv.
  • Python in this repo is operational glue around liblqos_python and installed runtime files, not an isolated app package.

Invariants

  • Do not require a venv. System-Python compatibility is intentional.
  • Treat ShapedDevices.csv and network.json as shared contracts across integrations, scheduler, overrides, and shaping.
  • Preserve stable circuit and device identities emitted by integrations unless the change explicitly includes a migration plan for overrides and downstream consumers.
  • Preserve tolerant input handling for operator-managed files: BOMs, UTF-16/non-UTF8 CSVs, comment stripping, and uneven rows are all present in current workflows for a reason.
  • Preserve scheduler resilience: importer failures should be logged/reported and should not kill the scheduler loop.
  • Preserve existing external protocols and identity values for integrations unless the task explicitly includes coordinated changes on both sides.
  • Be careful with paths: some code uses get_libreqos_directory(), while some helpers and tests intentionally use cwd-relative files.

Validation

  • Run targeted tests from src/, not repo root, for example:
    • python3 -m unittest test_scheduler.py
    • python3 -m unittest test_shaping_skip_report.py
    • python3 -m unittest test_virtual_tree_nodes.py
  • If changing scheduler/helpers, prefer the smallest focused unittest set that covers the touched logic.
  • If changing generated file behavior, review both the writer and the reader side in the same change.

References

  • Read references/generated-runtime-files.md when deciding whether a file is source input, generated output, or runtime state.
  • Read references/integration-modes.md when touching scheduler/importer selection, stable identities, or integration output assumptions.

High-Risk Changes

  • Anything that changes ShapedDevices.csv columns, row semantics, or encoding behavior
  • Anything that changes network.json structure or virtual-node handling
  • Scheduler subprocess/error-handling behavior
  • Runtime path handling or current-working-directory assumptions
  • Live shaping entrypoints that can touch TC/XDP state
  • Broad "cleanup" refactors that try to package-ize or normalize the Python tree

Notes

  • ispConfig.py is useful as a historical/example config reference, but current runtime config is largely surfaced through liblqos_python and /etc/lqos.conf.
  • Historical files such as LibreQoS-old.py, LibreQoS-ancient.py, and LibreQoS.py.new exist in-tree but are not the default source of truth.
  • If a Python change adds or newly requires shipped files, update src/build_dpkg.sh in the same change.