Kubernetes particularly schedules and runs application containers on clusters of physical or virtual machines. Containers make it easier to host and manage the lifecycle of web applications inside a portable environment more efficiently and quickly. These containers act as replicas and serve to load balance incoming requests, and docker is the generally used tool used to deploy containers inside clusters (while rkt is another option to containerize the application). Docker containers are efficient in managing packaged applications. Containerization allows development teams to move quickly, deploy software more efficiently and consistently
With agile and DevOps processes are already widely adopted by enterprises, the enterprises continue to deploy more and more containerized applications in recent years. A leading global analyst report states that more than 75% of global organizations will be running containerized applications in production by 2022 due to the advantage of containerization.