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How to scale Deployment, in view of this problem, this article introduces the corresponding analysis and solutions in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

Scale Up/Down refers to increasing or decreasing the number of copies of Pod online.

The Deployment nginx-deployment starts with two copies.

There is a copy each on k8s-node1 and k8s-node2. Now modify the nginx.yml to change the copy to 5.

Three new copies are created and dispatched to k8s-node1 and k8s-node2.

For security reasons, Kubernetes does not schedule Pod to Master nodes by default. If you want to use k8s-master as a Node, you can execute the following command:

Kubectl taint node k8s-master node-role.kubernetes.io/master-

If you want to restore the Master Only state, execute the following command:

Kubectl taint node k8s-master node-role.kubernetes.io/master= "": NoSchedule

Next, modify the configuration file to reduce the number of copies to 3, and re-execute kubectl apply:

You can see that two copies were deleted and three copies were eventually retained.

This is the end of the answer to the question on how to scale Deployment. I hope the above content can be of some help to you. If you still have a lot of doubts to solve, you can follow the industry information channel to learn more about it.

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