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Blue Green Deployment with Argo Rollouts
In this article, we will learn how to automate Blue/Green Deployment with Argo Rollouts.
Argo Rollouts
Argo Rollouts is a Kubernetes Controller and set of Custom Resource Definitions (CRDs) that provide advanced features for application deployment on Kubernetes compared to the native Kubernetes Deployment Object.
Argo Rollouts provide deployment capabilities such as blue-green, canary, canary analysis, experimentation, and progressive delivery features to Kubernetes.
Because Argo Rollouts are a set of CRDs, we need to install them into the Kubernetes Cluster. Run the following commands to install Argo Rollouts.
Check if we installed it successfully.
kubectl get pod -n argo-rolloutsNAME READY STATUS RESTARTS AGE
argo-rollouts-76fcfc8d7f-k6mth 1/1 Running 0 58s
Argo Rollouts Deployment Strategy
To use Argo Rollouts, we declare a resource with the apiVersion attribute as argoproj.io/v1alpha1 and the kind as Rollout, like below:
The configuration of Argo Rollouts has a strategy property for us to choose the deployment strategy we want, with two values of blueGreenand canary.
See detail here Rollout Specification. Don’t try to understand all properties for now.
In this article, we will learn about blue/green.
