In a production environment, it is often necessary to update applications without downtime. Kubernetes provides a feature called Rolling Updates
to help with this. This guide will explain what Rolling Updates
are and how to use them.
Rolling updates are a method of updating software with minimal or no downtime. With this method, new versions of the software are gradually deployed to servers. This ensures that there is always a working version of the software available, even if some of the servers are being updated.
Rolling updates are performed by updating individual pods in a deployment. Kubernetes will update the pods one at a time. This ensures that there is always a working version of the software available.
To perform a rolling update, you need to update the deployment's spec
with the new image. Kubernetes will then update the pods one at a time.
If there is a problem with the update, you can rollback the deployment to the previous version. To do this, you need to update the deployment's spec
with the previous image. Kubernetes will then update the pods one at a time.
Rolling updates are a great way to update software with minimal or no downtime. Kubernetes makes it easy to perform rolling updates with its Rolling Updates
feature.