Replica Sets in Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE)

D.

In Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE), a Replica Set is used to ensure that a specified number of identical replica Pods are running at any given time. It is responsible for maintaining the desired number of Pod replicas, and will create or destroy replicas as necessary to maintain this desired state.

A Replica Set provides declarative updates for Pods, which means that you can define the desired state of your application and the Replica Set will work to maintain that state. For example, if you want to scale your application up to 10 replicas, you can simply update the desired state of the Replica Set to 10 and it will create new replicas until there are 10 running.

The Replica Set is also responsible for ensuring that each replica Pod is identical to the others in terms of configuration and application code. This ensures that the application behaves consistently across all replica Pods.

In addition, the Replica Set is responsible for monitoring the health of each Pod and taking action if any Pods become unhealthy. If a Pod fails, the Replica Set will automatically create a new Pod to replace it, ensuring that the desired number of replicas is always maintained.

Overall, the Replica Set is an important component of Kubernetes and is used to ensure that a specified number of identical replica Pods are running at all times, providing scalability, availability, and consistency for your application.