Files
spark-control/image/app/config.py
T
Keysat 95524f4983 v0.13.0:0 - revert WhisperX migration; back to Parakeet + Sortformer
After five hotfix iterations on the WhisperX install (v0.12.0:0–:4) we
never got a working docker build. The fundamental constraint isn't
patchable from outside NVIDIA: NGC PyTorch on ARM64 (the only base that
runs on Spark 2's GB10 Blackwell) ships a custom-versioned torch
2.10.0a0+b558c98 that has no pre-built torchaudio match anywhere.
WhisperX → pyannote → torchaudio is a hard dependency chain we couldn't
satisfy without rebuilding torchaudio against torch 2.10's alpha API.
Walking away cleanly is better than another night of chasing.

Removed from the codebase:
  - image/whisperx_container/* (Dockerfile + requirements + app/main.py)
  - image/app/whisperx_install.py (install manager + SSH ship-context logic)
  - image/Dockerfile COPY whisperx_container
  - WHISPERX_* config keys in config.py
  - whisperx service entry in services.py
  - WhisperX-preferred branch in audio_proxy.py
  - /api/whisperx/* endpoints in server.py
  - install banner + progress dialog in index.html
  - render + handlers in app.js
  - .whisperx-install styles in style.css

Spark 2 cleaned in tandem (user-authorized): container removed,
~/whisperx-build/ removed, 5.4 GB of dangling image layers + 1.3 GB of
builder cache reclaimed. parakeet-asr and magpie-tts unaffected and
healthy throughout.

The audio path is back to exactly what shipped in v0.11.0:3:
  POST /api/audio/transcribe-with-speakers
    → Parakeet (transcription) + Sortformer (diarization) in parallel
    → merged by timestamp into speaker-labeled blocks

v0.13.0:1+ will add the actually-needed fixes that the WhisperX detour
was meant to address:
  1. memory cap on the parakeet-asr container so a long-audio crash
     can't swap-thrash Spark 2 again
  2. a chunking proxy in /api/audio/transcribe-with-speakers that
     splits inputs >10 min before Sortformer

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 08:03:19 -05:00

78 lines
2.5 KiB
Python

from __future__ import annotations
import os
from dataclasses import dataclass
from pathlib import Path
def _env(name: str, default: str = "") -> str:
return os.environ.get(name, default)
def _resolve_models_yaml() -> str:
if env := os.environ.get("MODELS_YAML"):
return env
here = Path(__file__).resolve().parent # app/
candidates = [
here.parent / "models.yaml", # image/models.yaml (Docker)
here.parent.parent / "models.yaml", # <repo>/models.yaml (dev)
Path("/app/models.yaml"), # explicit container path
]
for p in candidates:
if p.exists():
return str(p)
return str(candidates[0]) # let load fail with a clear path
@dataclass(frozen=True)
class Settings:
spark1_host: str
spark1_user: str
spark2_host: str
spark2_user: str
parakeet_host: str
parakeet_user: str
parakeet_container: str
magpie_host: str
magpie_user: str
magpie_container: str
ssh_key_path: str
ssh_known_hosts: str
models_yaml: str
vllm_port: int
parakeet_port: int
magpie_port: int
bind_port: int
open_webui_url: str
ngc_api_key: str
@classmethod
def from_env(cls) -> "Settings":
spark2_host = _env("SPARK2_HOST")
spark2_user = _env("SPARK2_USER")
# Parakeet and Magpie default to Spark 2 unless explicitly overridden.
return cls(
spark1_host=_env("SPARK1_HOST"),
spark1_user=_env("SPARK1_USER"),
spark2_host=spark2_host,
spark2_user=spark2_user,
parakeet_host=_env("PARAKEET_HOST") or spark2_host,
parakeet_user=_env("PARAKEET_USER") or spark2_user,
parakeet_container=_env("PARAKEET_CONTAINER") or "parakeet-asr",
magpie_host=_env("MAGPIE_HOST") or spark2_host,
magpie_user=_env("MAGPIE_USER") or spark2_user,
magpie_container=_env("MAGPIE_CONTAINER") or "magpie-tts",
ssh_key_path=_env("SSH_KEY_PATH"),
ssh_known_hosts=_env("SSH_KNOWN_HOSTS"),
models_yaml=_resolve_models_yaml(),
vllm_port=int(_env("VLLM_PORT", "8888")),
parakeet_port=int(_env("PARAKEET_PORT", "8000")),
magpie_port=int(_env("MAGPIE_PORT", "9000")),
bind_port=int(_env("BIND_PORT", "9999")),
open_webui_url=_env("OPEN_WEBUI_URL", ""),
ngc_api_key=_env("NGC_API_KEY", ""),
)
@property
def configured(self) -> bool:
return bool(self.spark1_host)