Multi-tenant SaaS Platform Architecture Template
Team workspaces, RBAC, billing integration, and tenant data isolation. Generate a complete cloud architecture with cost estimates, Terraform, sequence diagrams, CLI deployment workflows, and a GitHub Actions pipeline — on AWS, Azure, or GCP.
Production estimates. Your workspace generates actuals.
Architecture Overview
Isolates customer data by tenant, enforces RBAC through a centralized auth layer with SSO support, tracks usage against per-plan quotas, and queues background jobs and webhook deliveries for async workflows.
~8
cloud services
AWS Architecture Diagram
Full topology with all services and request flows — switch providers above to compare.
Multi-tenant SaaS Platform - AWS - Production implementation lanes - CloudDesign AI
Architecture Breakdown
Every major component, what it does, and the AWS service powering it.
Auth + SSO
Amazon Cognito
Handles business logic and integrates with surrounding services.
API Server
Amazon API Gateway
Routes, authenticates, and rate-limits incoming requests.
Tenant DB
Amazon ECS Fargate
Stores and retrieves data with durability and access controls.
Job Queue
Amazon SQS
Decouples producers from consumers for async processing.
Worker Functions
AWS Lambda
Handles business logic and integrates with surrounding services.
Webhook Store
AWS Lambda
Stores and retrieves data with durability and access controls.
API Gateway
Amazon API Gateway
Routes, authenticates, and rate-limits incoming requests.
Monitoring
CloudWatch
Handles business logic and integrates with surrounding services.
Cost Estimate — AWS
Representative production estimate. Your workspace generates a breakdown based on your actual configuration.
AWS — $310 / month estimated
Cognito
Auth + SSO
ECS Fargate
App server
RDS
Tenant database
SQS
Job queue
Lambda
Worker functions
DynamoDB
Webhook store
API Gateway
API layer
CloudWatch
Monitoring
Total estimate
$310 / month
What CloudDesign AI Generates
Every generation produces a complete set of production-ready artifacts.
Architecture Diagram
Full topology showing every service and how traffic flows between them.
Sequence Diagrams
Request lifecycle flows for upload, query, and overall system paths.
Cost Analysis
Per-service cost breakdown with total estimate for the selected provider.
Terraform Code
Complete infrastructure-as-code export you can deploy immediately.
CLI Deployment Workflow
Ordered provisioning commands for every service in the architecture.
GitHub Actions Pipeline
Ready-to-commit `.github/workflows/terraform.yml` for CI/CD.
Tradeoff Analysis
Cost, scalability, reliability, and operational complexity breakdown.
Production Checklist
Architecture-specific risks and mitigations before you go live.
Terraform Preview — AWS
Provider-specific infrastructure code. The full export is available after generating.
resource "aws_cognito_user_pool" "tenants" {
name = "${var.prefix}-tenants"
mfa_configuration = "ON"
}
resource "aws_db_instance" "tenant_db" {
identifier = "${var.prefix}-tenant-db"
engine = "postgres"
instance_class = "db.r7g.large"
}
resource "aws_sqs_queue" "jobs" {
name = "${var.prefix}-jobs"
visibility_timeout_seconds = 300
}
# + 300 more lines — generate the full export →Full Terraform export includes: variables, outputs, IAM roles, environment configs, and module structure.
Generate Full TerraformCLI Preview — AWS
Ordered provisioning commands for every service. The full workflow is generated in your workspace.
aws cognito-idp create-user-pool --pool-name $PREFIX-tenants \
--mfa-configuration ON
aws rds create-db-instance --db-instance-identifier $PREFIX-tenant-db \
--engine postgres --db-instance-class db.r7g.large
aws sqs create-queue --queue-name $PREFIX-jobs
# + 22 more commands — generate the full workflow →Full CLI workflow includes: bucket creation, networking, IAM setup, application deployment, and health checks — in order.
Generate Full CLI WorkflowCloud Provider Mapping
Every architectural function mapped to its native service on AWS, Azure, and GCP.
Architecture Tradeoffs
How AWS, Azure, and GCP compare across the dimensions that matter most for this architecture.
Cost Efficiency
GCP is the cheapest option: Firebase Auth is free, Cloud Run scales to zero, and Cloud SQL is well-priced for multi-tenant workloads.
SSO / Enterprise Auth
Azure AD B2C has the deepest enterprise SSO ecosystem; Cognito supports SAML/OIDC; Firebase Auth is lightweight.
Tenant Isolation
Schema-per-tenant isolation works equally well on all three providers.
Scalability
All three handle hundreds of tenants effortlessly; cost and ops management are the real differentiators.
Webhook Reliability
DynamoDB, Cosmos DB, and Firestore all support reliable webhook delivery queues with retry and dead-letter handling.
Production Risks for This Architecture
Known failure modes with concrete mitigations — included in every generated checklist.
Noisy neighbor CPU contention in shared RDS: a single tenant running heavy queries in a shared schema database degrades all other tenants — set per-tenant connection limits and query timeouts from the start
SSO token expiry cascading across tenants: if your OIDC token refresh logic fails, all users of an enterprise tenant get logged out simultaneously — implement silent refresh with retry before expiry
Webhook delivery retry flood: when a subscriber endpoint goes down, retrying all outstanding webhooks on recovery creates a thundering herd — implement exponential backoff with jitter and a per-endpoint circuit breaker
Key Capabilities Covered
Frequently Asked Questions
Common questions about this architecture and what CloudDesign AI generates.
Generate the Multi-tenant SaaS Platform Architecture
Get the full architecture diagram, cost breakdown, Terraform, CLI workflow, and GitHub Actions pipeline — specific to your chosen cloud provider.
Free account · No credit card required · 5 architecture runs per month