281 kubectl create -f rc1.yaml -n=jagadish282 kubectl get rc283 kubectl get rc -n=jagadish284 kubectl get pods -n=jagadish285 kubectl get rc -n=jagadish286 kubectl edit rc -n=jagadish287 kubectl get rc -n=jagadish288 vi rc1.yaml289 kubectl apply rc -n=jagadish290 kubectl apply -f -n=jagadish291 vi rc1.yaml292 kubectl apply -f rc1.yaml -n=jagadish293 kubectl get rc -n=jagadish294 kubectl delete rc -n=jagadish295 kubectl delete rc jagadish296 kubectl delete rc rajesh297 kubectl delete rc jagadish298 kubectl delete -f rc1.yaml -n=jagadish299 kubectl apply -f rc1.yaml -n=jagadish300 kubectl describe rc jagadish

Kubernetes has manily two components Master and Node/Minion. The master node controls the state of the cluster; for example, which applications are running and their corresponding container images. Master Components: API Server ETCD – for storing data in Key Velue Controller Scheduler Kubectl Kubelet Docker The Utlitites/Softwares (5,6,7) can be installed via kubeadmin init Node: Kubelet Docker Kubectl Kube proxy The utilites (1,2,3) can be installed via kubeadmin join Workstation Kubectl -> Package

Kubernetes is a tool which helps in managing contrainers developed by Google. Features: It has Automated Scheduling It has Self-Healing Capabilities Automated rollouts & rollback Automated Scaling & Load Balancing Infrastructure is loosely coupled to each component can act as a separate unit Application-centric management Auto-scalable infrastructure

Helps in building the common utility (yaml files) to describe the servicess and use it in a single command YAML files are readable Helps to perform operations on all the containers in a single command Single host deployment Quick and easy configurations Highly productive – save time

It Blocks the docker until one or more containers stop, then prints the respective exit codes

What is Docker? Docker is a Tool/Platform which helps in managing the containers and helps save time, cost and improve the quality of the software. What is Container? Is a fully independent, isolated run time environment for dockers or applications. Benefit of Docker? Saves Time Saves Cost No dependencies Improves the quality of the software Docker Architecture It will have a Docker enginer which is nothing but Docker Client, Restful service and docker server (deamon) and ContainerD to interact with