Deployment Strategies: Blue-Green, Canary, Rolling Updates

    Introduction Choosing the right deployment strategy is critical for minimizing downtime and risk when releasing new versions of your application. Different strategies offer different trade-offs between speed, safety, and resource usage. This guide visualizes three essential deployment strategies: Rolling Updates: Gradual replacement of instances Blue-Green Deployments: Instant cutover between versions Canary Deployments: Progressive rollout with traffic splitting Comparison and Use Cases: When to use each strategy Part 1: Rolling Update Deployment Rolling updates gradually replace old version pods with new version pods, ensuring continuous availability. ...

    January 23, 2025 · 11 min · Rafiul Alam