A well-architected SAP landscape in AWS requires a structured multi-account approach. Each account provides isolation, security, governance, and scalability, enabling independent lifecycle management for SAP workloads, shared services, and core infrastructure.
Key benefits of this multi-account approach:
Key benefits of this multi-account approach:
- Security: Limits blast radius by isolating production from non-production environments.
- Governance: Allows centralized logging, compliance monitoring, and service control policies (SCPs).
- Operational Management: Supports independent teams managing workloads, networking, and security.
- Scalability: New accounts can be added with minimal disruption.
- Define all AWS accounts required for the SAP landscape to ensure:
- Isolation for production, development, and sandbox workloads
- Centralized management for security, logging, and shared services
- Clear governance boundaries with tagging and SCPs
- Scalable architecture for future environments or projects
Design Overview
AWS accounts are categorized into three main types:
| Account Type | Account Name | Purpose |
|---|---|---|
| Master & Governance | Master Payer Account (MPA) | Centralized billing, AWS Organizations management |
| Network & Security | Network Service Account | Centralized VPC, Transit Gateway, and networking services |
| Shared Services Account | Shared infrastructure (AD, DNS, monitoring) | |
| Security Account | Security tooling, IAM policies, compliance monitoring | |
| Logging Account | Centralized logging (CloudTrail, CloudWatch Logs, S3) | |
| SAP Workload Accounts | Production Account | Production SAP workloads |
| Development Account | SAP development workloads | |
| Pre-Production Account | Staging/pre-release SAP workloads | |
| Quality Account | QA and integration testing workloads | |
| Sandbox Account | Ad-hoc testing, PoC, learning environments |
- Each account is isolated for security, operational management, and billing.
- Shared and security accounts centralize governance.
- Network connectivity is managed via Transit Gateway in the Network Service Account.
Step 1: Create Accounts via AWS Organizations
Log in to the Master Payer Account (MPA).
Navigate to AWS Organizations → Accounts → Add account → Create account.
Enter the account details:
- Account Name: e.g., Production, Development, Security
- Email: Use internal aliases (e.g., prod-team@example.com)
- Select OU: Choose appropriate OU (Production, Non-Production, Security)
Click Create account.
Repeat for all required accounts (Production, Development, QA, Pre-Prod, Sandbox, Security, Shared Services).
Tip: Keep a spreadsheet to track accounts, emails, and OU assignments for governance.
Step 2: Enable IAM & Security Baseline
Enable IAM Identity Center (SSO):
- Centralizes user access across all AWS accounts.
- Assign users/groups per environment and role.
Create IAM Roles per Account:
- Admin: Cross-account administrative access.
- Read-only: Monitoring and auditing.
- SAP Ops: Workload-specific operational tasks.
Enforce Security Controls:
Enable MFA for all users and roles.
Apply Service Control Policies (SCPs) per OU:
- Production OU: strict policies.
- Non-Production OU: flexible policies.
- Security OU: restricted to security-related services.
Step 3: Networking & Peering
Single VPC per account (as per VPC Design guidelines).
AWS Transit Gateway:
- Deploy in Network Services Account.
- Connect all environment accounts: Production, Development, QA, Pre-Production, Sandbox.
- Connect Shared Services and Security accounts.
Route Tables & Subnets:
- Use private and public subnets per account.
- Maintain routing isolation: Production cannot directly access non-production networks.
- Configure peering or Transit Gateway routes only where necessary.
Step 4: Tagging
Apply tags to all accounts for automation, cost tracking, and governance:
| Tag Key | Example Value | Purpose |
|---|---|---|
| Environment | Production / Dev / QA / Sandbox | Identify environment |
| Project | SAP Migration | Track project costs |
| AccountType | Workload / Security / Shared | Categorize account type |
Tip: Use AWS Tag Policies to enforce tag standardization across accounts.
Step 5: Logging & Monitoring Integration
CloudTrail:
- Enable in each account.
- Aggregate logs into Logging Account for centralized visibility.
CloudWatch Logs:
- Forward application and infrastructure logs to the Logging Account.
Security Account Monitoring:
- Monitor IAM activity, compliance events, and guardrails.
- Optionally, integrate with Security Hub or SIEM for consolidated alerting.
Diagram – AWS Account Connectivity
Master Payer Account (Root)
- Centralized billing & governance
- Service Control Policies (SCPs) enforcement
- No workloads
Platform Services Accounts
- Network Services: Hub VPC, Transit Gateway, DNS, firewalls
- Shared Services: CI/CD, automation, identity management
- Security: Threat detection, monitoring, vulnerability management
- Logging: Centralized audit logs, immutable storage
Workload Environment Accounts
- Production: Live workloads, strict security & availability
- Development: Feature development & experimentation
- Pre-Prod: Production-like staging environment
- Quality (QA): Testing & validation
- Sandbox: Safe experimentation & temporary workloads
Notes:
This multi-account structure follows AWS best practices for SAP workloads.
- Future accounts can be added under the appropriate OU.
- Security, logging, and shared services accounts provide centralized governance.
- Transit Gateway ensures secure, scalable VPC-to-VPC connectivity.
- Enforce naming conventions, tagging standards, and SCPs for consistent governance.
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