DEPLOY_LOG.md

Deploy Log — HF Dev Space (Chen4700/drl-trading-bot-dev)

Date: 2026-03-19 Goal: Switch HF Space from Docker (full trading stack) to Streamlit SDK (client-only UI)

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What Was Done

1. README.md frontmatter updated

Changed from Docker SDK to Streamlit SDK:

# Before
sdk: docker
app_port: 7860

# After
sdk: streamlit
sdk_version: 1.42.0
app_file: src/ui/app.py

2. Created requirements-hf.txt

New lightweight requirements file for HF UI-only deployment:

• streamlit>=1.42.0
• streamlit-lightweight-charts>=0.1.0
• pandas, numpy, requests, plotly
• python-dotenv, pymongo, dnspython, certifi

Why pymongo is needed: src/data/storage.py has a bare import pymongo at the top level (not guarded). The app falls back to JsonFileStorage if STORAGE_TYPE is not set to mongo, but the import must succeed.

3. Created hf-deploy branch

• main stays untouched (full requirements for local dev)
• hf-deploy branch replaces requirements.txt with lightweight HF version
• Force-pushed hf-deploy → main on huggingface remote

4. Build Result

• Build completed in ~21 seconds (pip install phase)
• All 11 lightweight deps installed cleanly
• No errors in build log

5. Runtime Result

• Stage: RUNNING
• SDK: streamlit (confirmed via HF API)
• Streamlit startup confirmed: "You can now view your Streamlit app in your browser."

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API Tunnel Status

Tunnel URL: https://advertise-refined-doom-bicycle.trycloudflare.com Test: curl -s .../api/ping Result: {"ok":true,"timestamp":"2026-03-19T13:21:45.580803"} ✓

The HF Space needs API_SERVER_URL set to this tunnel URL as a HF Space variable. Check: Go to the dev space Settings → Variables and verify API_SERVER_URL = https://advertise-refined-doom-bicycle.trycloudflare.com

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Known Issues / Notes

1. Cloudflare Tunnel is ephemeral — The tunnel URL changes every time cloudflared tunnel is restarted. When that happens, update API_SERVER_URL in the HF Space variables.

2. storage.py import — import pymongo is at module level in src/data/storage.py. Must be in requirements. If the space should truly be API-only with no local storage, this import can be guarded later.

3. LFS files — The HF space still contains model .zip/.pkl files (883 MB via Git LFS). These aren't needed for a client-only space. To save space, consider adding them to .gitattributes as not-LFS on the deploy branch, or using .hfignore.

4. Production space — NOT touched. Only Chen4700/drl-trading-bot-dev was modified.

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Git State

• Branch hf-deploy pushed to huggingface remote as main (force push)
• origin (GitHub) main branch unchanged
• Commit: 3857657 — "Deploy: Switch HF Space to Streamlit SDK (client-only)"

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Session 2 — 2026-03-19

Goal: Fix testnet /api/testnet/status hang + push to HF dev space

Fixes Applied

1. BinanceConnector timeout (src/api/binance.py)

• Added 'timeout': 10000 (10s) to ccxt config — prevents indefinite hangs on slow/blocked proxy
• Added 'fetchMarkets': False and 'loadMarketsAlways': False — disables ccxt's lazy market-loading which could block on testnet's limited exchange info

2. Load dotenv in API server (src/ui/api_server.py)

• Added load_dotenv() at module startup — ensures .env vars (incl. BINANCE_TESTNET_PROXY_URL) are available for local dev

3. Testnet symbol whitelist (src/ui/api_server.py)

• Binance spot testnet only supports ~10 pairs (BTC, ETH, BNB, LTC, TRX, XRP, SOL, ADA, DOGE vs USDT)
• When iterating wallet balances, skip ticker fetch for currencies not in this whitelist
• Fixes "binance Invalid symbol" errors that accumulated and made the endpoint appear to hang

Build Result

• Build logs: CACHED (all deps unchanged, only app files copied) — completed in ~7s
• Streamlit confirmed running: "You can now view your Streamlit app in your browser."
• Commit: 75e6612

Verification Results

• HF Space stage: PAUSED — flagged as abusive by HF moderation (not a code issue)
  • Space must be manually unpaused at huggingface.co/spaces/Chen4700/drl-trading-bot-dev
• Cloudflare tunnel: DOWN (error 1033) — cloudflared is not running locally
  • Restart tunnel: cloudflared tunnel --url http://localhost:5001
  • Update API_SERVER_URL HF Space variable after restart
• Integration tests: 22/22 PASSED (71s) — all endpoints, testnet structure, app.py API migration verified

Git State

• Branch hf-deploy (commit 75e6612) force-pushed to huggingface remote as main
• origin (GitHub) main branch unchanged — fixes remain on hf-deploy only