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RWS Architecture article

Database as a Service

Database as a Service is the product-neutral architecture building block for managed database provisioning and lifecycle management. It states what DC 3.0 needs from this capabilit

  1. Typeabb
  2. Statuscandidate
  3. Domainplatform
On this page
  1. ABB Database as a Service
  2. Summary
  3. Capabilities
  4. Constraints
  5. Service Description
  6. Roadmaps
  7. Landing Zones
  8. Interfaces
  9. Dependencies
  10. EIRA Alignment
  11. Available SBB's

ABB Database as a Service

Summary

Database as a Service is the product-neutral architecture building block for managed database provisioning and lifecycle management. It states what DC 3.0 needs from this capability before a concrete SBB, product, or operating model is selected.

Capabilities

  • Provides managed database provisioning and lifecycle management.
  • Defines the functional, technical, security, and quality expectations that SBBs must satisfy.
  • Keeps service ownership, interfaces, and consumption boundaries visible before product selection.
  • Enables traceability from architecture intent to implementation, operational evidence, and consuming services.

Constraints

  • The resulting SBB must fit the datacenters ownership model and document the support, lifecycle, and service-management boundary.
  • Security, privacy, logging, evidence, and compliance controls must be explicit enough to assess BIO2-aligned implementation where applicable.
  • Database SBBs must define supported engines, service tiers, backup behavior, encryption, and patch policy.
  • The solution cannot create unmanaged database islands outside the DC 3.0 governance model.

Service Description

This ABB offers a database service that gives teams standardized database instances with managed lifecycle, backup, access, and monitoring. It is consumed by solution architects, platform teams, and service owners as the capability contract for selecting and shaping SBBs.

The service description remains implementation-neutral: product selection, hosting pattern, detailed runbooks, and service levels belong in the mapped SBB and related ADRs.

Roadmaps

  • Baseline: confirm scope, service ownership, constraints, and acceptance criteria for Database as a Service.
  • MVP: identify candidate SBBs and connect them to the service, support, and lifecycle model.
  • Next: add measurable service levels, evidence requirements, and roadmap dependencies once the SBB is selected.

Landing Zones

  • Private cloud landing zone in ODC-Amsterdam, following the RWS ICT Strategy 2025-2030 private-cloud direction.
  • Government cloud or external cloud landing zones only when the SBB documents the required control set, connectivity model, and data classification fit.

Interfaces

  • Database client protocols for supported engines.
  • Provisioning and lifecycle APIs.
  • Backup, monitoring, and secret-consumption interfaces.

Dependencies

  • Depends on block-file-s3-storage for a supporting capability or integration boundary.
  • Depends on backup-and-disaster-recovery for a supporting capability or integration boundary.
  • Depends on secrets-management for a supporting capability or integration boundary.
  • No implementing SBB is mapped yet; candidate SBB selection is a dependency for further elaboration.
  • Consuming ABB and SBB dependencies must be recorded as links when solution design identifies concrete upstream or downstream use.

EIRA Alignment

Available SBB's

  • No SBB is available yet. Candidate selection must be completed before this ABB can be promoted beyond capability intent.