42 lines
1.6 KiB
Python
42 lines
1.6 KiB
Python
import os
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import boto3
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from app.models import Base
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from .constants import AWS_REGION
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from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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from functools import lru_cache
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def get_db_credentials():
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"""Fetch and cache DB credentials from environment or SSM Parameter Store"""
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if os.getenv("MOCK_AUTH", "").lower() == "true":
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return (
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f"postgresql://{os.getenv('DB_USER')}:{os.getenv('DB_PASSWORD')}"
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f"@{os.getenv('DB_HOST')}/{os.getenv('DB_NAME')}"
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)
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ssm = boto3.client('ssm', region_name=AWS_REGION)
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try:
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host = ssm.get_parameter(Name='/iptv-updater/DB_HOST', WithDecryption=True)['Parameter']['Value']
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user = ssm.get_parameter(Name='/iptv-updater/DB_USER', WithDecryption=True)['Parameter']['Value']
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password = ssm.get_parameter(Name='/iptv-updater/DB_PASSWORD', WithDecryption=True)['Parameter']['Value']
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dbname = ssm.get_parameter(Name='/iptv-updater/DB_NAME', WithDecryption=True)['Parameter']['Value']
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return f"postgresql://{user}:{password}@{host}/{dbname}"
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except Exception as e:
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raise RuntimeError(f"Failed to fetch DB credentials from SSM: {str(e)}")
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# Initialize engine and session maker
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engine = create_engine(get_db_credentials())
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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def init_db():
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"""Initialize database by creating all tables"""
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Base.metadata.create_all(bind=engine)
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def get_db():
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"""Dependency for getting database session"""
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close() |