Question

What’s the best way to implement canary deployments with Jenkins pipelines? Could you provide a Jenkinsfile example or describe how you would approach testing with a small subset of users?

This question discusses techniques for incrementally deploying application updates to a small subset of users based on canary deployment using Jenkins. The objective is to explain how pipelines are created by Jenkins to allow rollout phases and fallbacks, making it have minimal interruption. An example of a Jenkinsfile serves to exemplify application on the go.

Answer 1

Canary deployments apply the change to a small number of users before rolling it out to all users, thereby minimizing risk.

Create Deployment Stages: Separate stages for canary and full deployment.
Canary deployment Traffic shifting - Direct traffic from Kubernetes ingress controllers or AWS ALB to canary pods.
Monitoring and Rollback: Add monitoring, such as Prometheus to monitor canary stability and automate rollbacks.
Example Jenkinsfile: