acazares
2a10d7d267
- Implemented SvelteKit frontend with authentication callback handling. - Created demo routes and paraglide localization functionality. - Added health check and entrypoint scripts for backend services. - Established PostgreSQL and Keycloak initialization scripts with health checks. - Introduced models for database schema using SQLAlchemy. - Configured Vite and SvelteKit for development and testing environments. - Added health check script to verify service statuses and resource usage. - Created Docker entrypoint scripts for seamless service startup.
136 lines
3.7 KiB
Python
136 lines
3.7 KiB
Python
"""
|
|
Configuración de base de datos con soporte multi-tenant
|
|
- Base de datos compartida (core_db) para tenants pequeños/medianos
|
|
- Bases de datos dedicadas para clientes enterprise
|
|
"""
|
|
from sqlalchemy import create_engine
|
|
from sqlalchemy.ext.declarative import declarative_base
|
|
from sqlalchemy.orm import sessionmaker, Session
|
|
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
|
|
from typing import Generator, Dict, Optional, AsyncGenerator
|
|
from contextlib import contextmanager
|
|
from .config import settings
|
|
|
|
# Base declarativa para modelos ORM
|
|
Base = declarative_base()
|
|
|
|
# Engine y SessionLocal para base de datos core (sincrónico)
|
|
core_engine = create_engine(
|
|
settings.core_database_url,
|
|
pool_pre_ping=True,
|
|
pool_size=10,
|
|
max_overflow=20,
|
|
echo=settings.DEBUG
|
|
)
|
|
|
|
CoreSessionLocal = sessionmaker(
|
|
autocommit=False,
|
|
autoflush=False,
|
|
bind=core_engine
|
|
)
|
|
|
|
# Engine asíncrono para operaciones async
|
|
async_core_engine = create_async_engine(
|
|
settings.async_core_database_url,
|
|
pool_pre_ping=True,
|
|
pool_size=10,
|
|
max_overflow=20,
|
|
echo=settings.DEBUG
|
|
)
|
|
|
|
AsyncCoreSessionLocal = async_sessionmaker(
|
|
async_core_engine,
|
|
class_=AsyncSession,
|
|
expire_on_commit=False
|
|
)
|
|
|
|
# Cache de engines para tenants con BD dedicada
|
|
_tenant_engines: Dict[str, any] = {}
|
|
|
|
|
|
def get_core_db() -> Generator[Session, None, None]:
|
|
"""
|
|
Dependency para obtener sesión de base de datos core (compartida)
|
|
Uso en FastAPI: db: Session = Depends(get_core_db)
|
|
"""
|
|
db = CoreSessionLocal()
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close()
|
|
|
|
|
|
async def get_async_core_db() -> AsyncGenerator[AsyncSession, None]:
|
|
"""
|
|
Dependency para obtener sesión asíncrona de base de datos core
|
|
"""
|
|
async with AsyncCoreSessionLocal() as session:
|
|
try:
|
|
yield session
|
|
finally:
|
|
await session.close()
|
|
|
|
|
|
def get_tenant_engine(tenant_id: int, db_config: dict):
|
|
"""
|
|
Obtiene o crea un engine para un tenant con BD dedicada
|
|
|
|
Args:
|
|
tenant_id: ID del tenant
|
|
db_config: Configuración de BD {host, port, name, user, password}
|
|
|
|
Returns:
|
|
Engine de SQLAlchemy para el tenant
|
|
"""
|
|
if tenant_id not in _tenant_engines:
|
|
db_url = f"postgresql://{db_config['user']}:{db_config['password']}@{db_config['host']}:{db_config['port']}/{db_config['name']}"
|
|
_tenant_engines[tenant_id] = create_engine(
|
|
db_url,
|
|
pool_pre_ping=True,
|
|
pool_size=5,
|
|
max_overflow=10
|
|
)
|
|
return _tenant_engines[tenant_id]
|
|
|
|
|
|
@contextmanager
|
|
def get_tenant_db(tenant_id: int, db_config: Optional[dict] = None) -> Generator[Session, None, None]:
|
|
"""
|
|
Context manager para obtener sesión de BD de un tenant específico
|
|
|
|
Si db_config es None, usa la BD core (compartida)
|
|
Si db_config está presente, usa la BD dedicada del tenant
|
|
|
|
Uso:
|
|
with get_tenant_db(tenant_id, config) as db:
|
|
# operaciones con db
|
|
"""
|
|
if db_config is None:
|
|
# Tenant en BD compartida
|
|
db = CoreSessionLocal()
|
|
else:
|
|
# Tenant con BD dedicada
|
|
engine = get_tenant_engine(tenant_id, db_config)
|
|
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
|
|
db = SessionLocal()
|
|
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close()
|
|
|
|
|
|
def init_db():
|
|
"""
|
|
Inicializa las tablas de la base de datos core
|
|
"""
|
|
Base.metadata.create_all(bind=core_engine)
|
|
|
|
|
|
async def init_async_db():
|
|
"""
|
|
Inicializa las tablas de la base de datos core (async)
|
|
"""
|
|
async with async_core_engine.begin() as conn:
|
|
await conn.run_sync(Base.metadata.create_all)
|