What is SaaS Multi-tenant?
SaaS (Software as a Service) or “on-demand software” has become a common delivery model for many bussiness software applications nowaday. It means when customers register the service, they get the software right-away.
In case customer want an isolated software (means other customers can’t read and write their data), then the multi-tenant architecture is your right choice !
Common strategies
We have many ways to build a multi-tenant system, but there are 3 common strategies:
- Shared database, shared schemas
- Shared database, seperated schemas
- Separated database
Every strategy has pros and cons and nothing in software is silver bullet. So pick the strategy fit to your requirements.
Separated database
But today, I will write about my chosen strategy (Separated database).
The most important things you have to remember is what being shared and separated between different tenants:
- SHARED
- Infrastructures
- Hosts
- Networking
- Platforms
- Load balancer
- Databases
- Key-Value storages
- Monitoring
- Software
- Application tenant code
- Infrastructures
- SEPARATED
- Database
- Metadata (about tenant info)
- Environment variables
- File storages
- Subscription Plans
- Endpoints
- Queues (job queues)
To be continued …
Ref:
- Cover photo from hackernoon