Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now It is an atomic scheduling unit in a Kubernetes cluster. It is a logical unit. Every container running in the cluster nodes will be wrapped up by the POD. In one POD there can be multiple container running. It is called tight coupling. Prefered way is run one container in one POD. It is

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now A pod is the smallest working unit in Kubernetes.A pod will have one or more containers (when there are multiple containers, they share the resources on the pods) Kubernetes runs the containers through pods only.When scaling is required, the pod is replicated.Pods are ephemeral and disposable – they cannot be reinstantiated after the lifecycle,

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Below are the Features of pods Pods are the atomic unit of kubernetes. Pods run on worker node. Pods can contain one or more container. Pods doesn’t exist without a container. All pods in a cluster are connected to a pod network. Pods are temporary [once removed will be removed for ever]. A pod

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Write down 10 features of Kubernetes with image Reduce the complexity of container Container orchestration Scheduling user requests Scaling containers Load balancing the containers Rollback containers Self-healing Monitoring Add-ons  like ingress, dns Ability to absorb changes quickly What are the components of Kubernetes master and explain each component’s function? There are 4 major components

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now kubelet :An agent that runs on each node in the cluster. It makes sure that containers are running in a Pod. kube-proxy :kube-proxy maintains network rules on nodes. Manage communication within the cluster and outside the cluster. Also assign ip address for pods Container runtime: For managing and run the containers.

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Pods are the smallest deployable units of computing that you can create and manage in Kubernetes. A Pod (as in a pod of whales or pea pod) is a group of one or more containers. A pod with multiple container is not a good practice Pods can be created using yaml or json Pod has

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Pod is the smallest execution unit in kubernetes Pod is not a physical entity. it is a logical entity. Pod is a group of one or more container Pod will contain one main container and other sidecar containers Storage and network will be shared among different containers inside a pod. pod lifecycle is pending,

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Control Plane The clusters are controlled by the component plane. The scheduling, instantiating a pod and deployments are handled by the control plane. kubelet The process responsible for communication between the Kubernetes control plane and the node. Container Runtime A runtime responsible for the managing the container.

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Pod is the atomic unit of scheduler in K8s. Pods contains one or more containers, at least one. K8s(kubelet) will instantiate pods. Pod is running as long the container inside is running. Life cycle of pod – Pending, Running, Succeded/ Failed Pods will communicate with each other through a pod network – inter pod

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now API Server: All the incoming/outgoing communication with Kubernetes cluster happening through API Server. APIServer is a RESTful server. Workstations/Client uses Kubectl tool for communicating with the API Server. API Server expects the inputs in JSON format. All the communication with the Master node worker nodes are also happening through API Server. Scheduler/Controller Manager uses

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Kubernetes worker or Minion or Node runs the actual workload.It reports the status of the application to the cluster “Master” and also listens to any change in the application definition on the Master. It has three components: KubeletRegisters a node with its clusterIt watches the AI server for changes in the definition of the

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now kubelet – This is the main K8s agent. It inistantiates the pods in the node. It helps to register nodes with cluster. Its always watch the api server. kube-proxy – Its support for K8s networking. It provide ip address for the pods. Each pods inside a node will have same ip address. kube-proxy rules

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Kubelet: Resides in each worker nodes. Registers the node to the master node. Instantiate the Pods. Container Runtime (Docker): For managing and running the containers. Kube-Proxy: It is a nw proxy. Implements nw rules on PODS. Fecilitate the communication with in the cluster and outside the cluster. All the networking related supports are done

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Container Its a the application/env we need to managed by K8s Kubelet  kubelet is responsible for starting, stopping the containers in pods, Ensure the stable running in the desired state Runs the Kubernetes nodes Kube-proxy service for network proxy makes communications between pods, containers, and nodes

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now API server – It contains all the APIs provided by K8s. It acts as the front-end, we access via REST. It is like ears in human body, it receive the things. Cluster store – All the requests / data stored in cluster store. etcd is the storage unit use by k8s. It is like

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now PODS are the atomic unit of scheduling in K8sDocker manages container – VMware manages VM & K8s manages PODsIt is our application or the serviceIt is the basic unit of workNo pod is ever redeployed(Ephemeral) (ie, we can’t get the same pod again. We can get the similar pod.)Pod is running as long the

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now K8s can manage the scalability challenge bring by containers. K8s runs many containers as a cluster K8s is a container orchestrator K8s provide the desired state – we desired to have 1000 containers K8s is self maintaining – self healing Auto rollback Auto scaling K8s managing load balancing K8s absorb changes K8s provide very

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Kubelet Kube-proxy pod container

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Pod is the basic unit of work It is application or service Pod is an atomic unit of scheduling in Node Kubernetes manages pod and not container Kubernetes job is to keep the pods running based on desired state State is the pod up and running Health is the application in the pod running