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spark-control/docs/guides/fastapi-image.md
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Keysat 6a6112a15f restructure: AGENTS.md canonical + docs/guides with .claude/rules symlinks
Rename CLAUDE.md -> AGENTS.md (cross-vendor standard) with a relative
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index paragraph at docs/guides/ so non-Claude agents find the guides.
2026-06-12 14:27:17 -05:00

1.9 KiB

paths
paths
image/**

FastAPI image (image/)

Standalone FastAPI app (Python ≥3.11; ships on python:3.12-slim; UI on port 9999; vanilla HTML/CSS/JS, no framework). Python has no configured linter/formatter — match the style of the file you're editing.

Local dev (no StartOS)

cd image
python3 -m venv .venv && source .venv/bin/activate   # one-time
pip install -e .
export SPARK1_HOST=<ip> SPARK1_USER=<user> SPARK2_HOST=<ip> SPARK2_USER=<user> SSH_KEY_PATH=<private-key>
# Required outside the container — these default to paths under /data, which only exists in the image
# (missing REDACTION_MAP_DB crashes startup; missing CONNECTIVITY_LOG 500s /api/status):
export REDACTION_MAP_DB=/tmp/redaction_maps.db CONNECTIVITY_LOG=/tmp/connectivity.json
uvicorn app.server:app --host 0.0.0.0 --port 9999 --reload

Other env vars: BIND_PORT, MODELS_YAML, SSH_DIR, SSH_KNOWN_HOSTS, MODELS_OVERRIDES, SERVICES_OVERRIDES.

Tests

No pytest harness — each suite is a standalone script run with the image/.venv interpreter (system python3 has no deps). See the redaction and audio rules for the suites themselves.

Conventions

  • Pydantic request models go at module scope, never inside a build_router() body (FastAPI silently 422s otherwise).
  • New external-facing endpoints get documented in docs/ (AUDIO_API.md, EMBEDDINGS.md, REDACTION_GATEWAY.md) and noted in release notes.

Layout

  • image/app/server.py — FastAPI entry; routers live in sibling modules (audio_proxy.py, llm_proxy.py, embeddings_proxy.py, redaction_gateway.py, swap.py, health.py, deep_health.py, connectivity.py, …).
  • image/app/static/ — the dashboard UI.
  • image/models.yaml — vLLM model catalog bundled into the image.
  • image/spark_embed/ — Dockerfile + app for the embeddings container; built ON a Spark (ARM64, NGC PyTorch base — see the audio/cluster rule for NGC torch-pinning caveats).