A ring-based deployment strategy releases software progressively to successive groups of users or production environments. Each ring has an acceptable risk level; telemetry and incident checks determine whether exposure can advance. section 9.3.8
A practical ring-based workflow combines staged environments with controlled exposure:
- Deploy the software to a first ring containing a small, risk-tolerant user group, often through a canary release. section 9.3.8
- Route users to the ring through domain prefixes, traffic management, percentage-based routing, headers, or query-string variations. section 9.3.8 section 9.3.5
- Monitor telemetry and live-site incidents, then approve progression only when the application behaves as expected. section 9.3.8
- Roll back by disabling a feature toggle or routing traffic back to the known working version when anomalies appear. section 9.3.8 section 9.3.5
Environment-based progression
A delivery pipeline can retrieve deployment artifacts, deploy to internal staging, run Playwright end-to-end checks, and then promote the application through production rings using manual or automated approvals. section 9.1.1
Figure 9.6 Ring-based deployment
Use the deployment progression diagram to relate rings, staged exposure, monitoring, and promotion decisions. section 9.3.8
