Fisrt commit. Docker compose is working

src/worker/Dockerfile

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+FROM python:3.12-slim
+
+# Set working directory
+WORKDIR /app
+
+# Copy requirements and install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY tasks/ .
+
+# Command will be overridden by docker-compose
+CMD ["celery", "-A", "main", "worker", "--loglevel=info"]

src/worker/requirements.txt

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+
+celery==5.5.3
+redis==6.4.0
+pymongo==4.15.0

src/worker/tasks/main.py

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+"""
+Celery worker for MyDocManager document processing tasks.
+
+This module contains all Celery tasks for processing documents.
+"""
+
+import os
+import time
+from celery import Celery
+
+# Environment variables
+REDIS_URL = os.getenv("REDIS_URL", "redis://localhost:6379/0")
+MONGODB_URL = os.getenv("MONGODB_URL", "mongodb://localhost:27017")
+
+# Initialize Celery app
+app = Celery(
+  "mydocmanager_worker",
+  broker=REDIS_URL,
+  backend=REDIS_URL
+)
+
+# Celery configuration
+app.conf.update(
+  task_serializer="json",
+  accept_content=["json"],
+  result_serializer="json",
+  timezone="UTC",
+  enable_utc=True,
+  task_track_started=True,
+  task_time_limit=300,  # 5 minutes
+  task_soft_time_limit=240,  # 4 minutes
+)
+
+
+@app.task(bind=True)
+def test_task(self, message: str):
+  """
+  Test task for validating worker functionality.
+
+  Args:
+      message: Test message to process
+
+  Returns:
+      dict: Task result with processing information
+  """
+  try:
+    print(f"[WORKER] Starting test task with message: {message}")
+    
+    # Simulate some work
+    for i in range(5):
+      print(f"[WORKER] Processing step {i + 1}/5...")
+      time.sleep(1)
+      
+      # Update task progress
+      self.update_state(
+        state="PROGRESS",
+        meta={
+            "current": i + 1,
+            "total": 5,
+            "message": f"Processing step {i + 1}"
+        }
+      )
+    
+    result = {
+        "status": "completed",
+        "message": f"Successfully processed: {message}",
+        "processed_at": time.time(),
+        "worker_id": self.request.id
+    }
+    
+    print(f"[WORKER] Test task completed successfully: {result}")
+    return result
+  
+  except Exception as exc:
+    print(f"[WORKER] Test task failed: {str(exc)}")
+    raise self.retry(exc=exc, countdown=60, max_retries=3)
+
+
+@app.task(bind=True)
+def process_document_task(self, file_path: str):
+  """
+  Placeholder task for document processing.
+
+  Args:
+      file_path: Path to the document to process
+
+  Returns:
+      dict: Processing result
+  """
+  try:
+    print(f"[WORKER] Starting document processing for: {file_path}")
+    
+    # Placeholder for document processing logic
+    time.sleep(2)  # Simulate processing time
+    
+    result = {
+        "status": "completed",
+        "file_path": file_path,
+        "processed_at": time.time(),
+        "content": f"Placeholder content for {file_path}",
+        "worker_id": self.request.id
+    }
+    
+    print(f"[WORKER] Document processing completed: {file_path}")
+    return result
+  
+  except Exception as exc:
+    print(f"[WORKER] Document processing failed for {file_path}: {str(exc)}")
+    raise self.retry(exc=exc, countdown=60, max_retries=3)
+
+
+if __name__ == "__main__":
+  app.start()