What methods have you used to deploy new versions of applications in a Kubernetes cluster?
sobes.tech AI
Answer from AI
In Kubernetes, the following approaches are usually used for deploying new versions of applications:
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Rolling Update — gradual replacement of old pods with new ones with a new image version. This is the standard way to update a Deployment, ensuring minimal downtime.
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Blue-Green Deployment — deploying the new version alongside the old one, switching traffic to the new after verification, with the possibility of rollback.
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Canary Deployment — launching the new version on a small part of pods or traffic to check stability before full deployment.
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Updating manifests with the new image version (tag) and applying via kubectl apply or CI/CD pipelines.
Example command for rolling update:
kubectl set image deployment/myapp myapp-container=myapp:2.0
This will update the container in the Deployment to version 2.0, and Kubernetes will gradually replace the pods.