phase 14-15: docker build validation and helm deployment

services/recommendation/main.py

@@ -0,0 +1,71 @@
+"""Recommendation worker entrypoint - polls Redis for recommendation jobs."""
+from __future__ import annotations
+
+import asyncio
+import json
+import logging
+
+import asyncpg
+from minio import Minio
+
+from services.recommendation.worker import generate_recommendation
+from services.shared.config import load_config
+from services.shared.logging import setup_logging
+from services.shared.redis_keys import QUEUE_RECOMMENDATION, queue_key
+
+logger = logging.getLogger("recommendation_main")
+
+
+async def main() -> None:
+    config = load_config()
+    setup_logging("recommendation", level=config.log_level, json_output=config.json_logs)
+
+    pool = await asyncpg.create_pool(dsn=config.postgres.dsn, min_size=2, max_size=8)
+    minio_client = Minio(
+        config.minio.endpoint,
+        access_key=config.minio.access_key,
+        secret_key=config.minio.secret_key,
+        secure=config.minio.secure,
+    )
+
+    import redis.asyncio as aioredis
+
+    redis_client = aioredis.from_url(config.redis.url)
+    queue = queue_key(QUEUE_RECOMMENDATION)
+    logger.info("Recommendation worker started, polling %s", queue)
+
+    try:
+        while True:
+            raw = await redis_client.lpop(queue)
+            if raw is None:
+                await asyncio.sleep(1)
+                continue
+
+            payload = raw
+            job = json.loads(payload)
+            ticker = job.get("ticker", "")
+            window = job.get("window", "7d")
+
+            logger.info("Processing recommendation job for %s/%s", ticker, window)
+
+            try:
+                rec = await generate_recommendation(
+                    pool, ticker, window,
+                    minio_client=minio_client,
+                )
+                if rec:
+                    logger.info(
+                        "Recommendation generated for %s: %s %s",
+                        ticker, rec.action.value, rec.mode.value,
+                    )
+                else:
+                    logger.info("No recommendation generated for %s (no trend data)", ticker)
+            except Exception:
+                logger.exception("Recommendation failed for %s", ticker)
+    finally:
+        await pool.close()
+        await redis_client.close()
+
+
+if __name__ == "__main__":
+    asyncio.run(main())