Multi-tenant applications are systems designed to serve multiple customers (tenants) using a single instance of the application. Each tenant has isolated data and configuration while sharing the same application codebase. This model is widely used in SaaS platforms.
Multi-tenant architectures are commonly implemented in three ways:
// Install Django tenant package
pip install django-tenant-schemas
// Add tenant app to INSTALLED_APPS
INSTALLED_APPS = [
'tenant_schemas',
'myapp',
]
// Configure tenant models
TENANT_MODEL = "myapp.Client"
TENANT_DOMAIN_MODEL = "myapp.Domain"
// Tenant models definition
from django.db import models
from tenant_schemas.models import TenantMixin
class Client(TenantMixin):
name = models.CharField(max_length=100)
created_on = models.DateField(auto_now_add=True)
class Domain(models.Model):
domain = models.CharField(max_length=100)
tenant = models.ForeignKey(Client, on_delete=models.CASCADE)
is_primary = models.BooleanField(default=True)
// Enable tenant middleware
MIDDLEWARE = [
'tenant_schemas.middleware.TenantMiddleware',
]
Each incoming request is routed to the correct tenant based on domain or schema. Django automatically ensures data isolation and correct schema usage.
Imagine a single building (application) with multiple locked apartments (tenants). Everyone uses the same building services, but personal belongings remain private.
Welcome, TechCorp Inc.
Your Private Data:
*Notice how the "Application Code" stays the same, but the Data and Schema change instantly based on the domain.