Blue-Green Deployment

Kind: pattern

Layer: Correctness Core

Aliases: Red-Black Deployment

Record: architecture:blue-green-deployment

Severity: contextual

Scope: deployment, release

Canonical: Ontology

A design pattern that deploys a release to an idle copy of production, verifies it, and switches traffic to it at once.

Listed in Architecture principles, after Rollback and before Canary Deployment.

Requires

• Parallel Environments

Reinforces

• Rollback
• Availability

Enables

• Low-Risk Cutover

Conflicts with

• In-Place Mutation Only

In tension with

• Infrastructure Cost

Tensions

• Blue-Green Deployment / Infrastructure Cost

Violated by

• In-Place Mutation Only

Severity

• contextual

Category

• Self-Healing / Recovery / Deployment Safety

Refactors

• Big-Bang Release

Linked from

• Anti-patterns
• Self-Healing / Recovery / Deployment Safety
• Quality Attributes
• Self-Healing / Recovery / Deployment Safety
• Severity levels
• The resolutions