Which Kubernetes object is used to deploy a containerized application and manage its lifecycle?DeploymentConfigMapServiceNamespace

The Kubernetes object used to deploy a containerized application and manage its lifecycle is "Deployment".

Here's a step-by-step explanation:

1. A Deployment in Kubernetes is a high-level object that automates the deployment of applications inside containers and manages their lifecycle.

2. It does this by creating ReplicaSets. A ReplicaSet is a low-level object in Kubernetes that ensures a specified number of identical pods (which are the smallest deployable units in Kubernetes and can contain one or more containers) are running at any given time.

3. The Deployment object describes the desired state for your application, and the Deployment Controller changes the actual state to the desired state at a controlled rate. This means it will gradually update your application with the new version while ensuring no downtime or impact on availability.

4. If a pod or underlying host fails, the Deployment will start a new pod to replace it, providing self-healing mechanisms and ensuring the availability and scalability of your application.

5. You can update a Deployment to roll out updated versions of applications, roll back to an earlier Deployment revision if your current Deployment isn't stable, and scale up your application to handle more load.