Multi-Tenant SaaS Deployment Pipeline with Kubernetes

A CI/CD pipeline that deploys a multi-tenant SaaS application onto a Kubernetes cluster with per-tenant isolation.

A software-as-a-service product serves many customers, called tenants, from the same platform, and the hard part is keeping them apart: one tenant must never see another's data or slow the others down, while new tenants must be added quickly. This project builds a CI/CD pipeline that deploys a multi-tenant SaaS application onto Kubernetes with per-tenant isolation.

The application is packaged in Docker containers, and Helm charts describe its deployment so that a new tenant is created from a template with its own settings. Each tenant runs in its own Kubernetes namespace, protected by network policies, resource quotas and role-based access, so that a busy or compromised tenant cannot affect the others. A GitHub Actions pipeline builds, tests and scans each change, publishes the image and deploys it first to a staging environment and then to production, with an automatic rollback if health checks fail. Horizontal autoscaling adds or removes pods as load changes. Prometheus collects metrics per tenant, and alerting rules notify the team about errors and slowdowns, with dashboards showing usage and cost. The project includes a load test and a discussion of the trade-offs between namespace-per-tenant and shared designs.

You will learn containers, Kubernetes, Helm, CI/CD and monitoring. The Project Reference Guide explains the architecture, and the Reference Implementation provides the pipeline, charts and set-up steps.