#Ubuntu install docker and kubernetes how to

You can either opt for local storage, or choose a public cloud provider such as GCP or AWS, or perhaps use a shared network storage system such as NFS, iSCSI, etc.Ĥ.

Storage Orchestration: You can mount the storage system of your choice. To ensure complete utilization and save unused resources, Kubernetes balances between critical and best-effort workloads.Ģ.Service Discovery & Load balancing: There is no need to worry about networking and communication because Kubernetes will automatically assign IP addresses to containers and a single DNS name for a set of containers, that can load-balance traffic inside the cluster.ģ. Features of Kubernetesġ.Automatic Binpacking: Kubernetes automatically packages your application and schedules the containers based on their requirements and available resources while not sacrificing availability. It is responsible for tracking utilization of working load on cluster nodes and then placing the workload on which resources are available and accept the workload. In general, it can be considered as a daemon which runs in nonterminating loop and is responsible for collecting and sending information to API server.ġ4.Scheduler: It is a service in master responsible for distributing the workload. It exposes Kubernetes API.ġ3.Controller-manager: This component is responsible for most of the collectors that regulates the state of cluster and performs a task. Kubeconfig is a package along with the server side tools that can be used for communication. API server implements an interface, which means different tools and libraries can readily communicate with it. It is a distributed key value Store which is accessible to all.ġ2.API-server: Kubernetes is an API server which provides all the operation on cluster using the API. It is accessible only by Kubernetes API server as it may have some sensitive information.

It is a high availability key value store that can be distributed among multiple nodes. Its a logical collection of containers that belong to an application.ĥ.Replication Controller: It is a resource at Master that ensures that requested number of pods are running on minions at all times.Ħ.Service: It is an object on master that provides load balancing across a replicated group of pods.ħ.Label: It is an arbitrary key/value pair in a distributed watchable storage that the Replication Controller uses for service discovery.Ĩ.Namespace: A Namespace is a mechanism to partition resources created by users into a logically named group.ĩ.Kubelet: Each minion runs services to run containers and be managed from the master.ġ0.Kube-proxy: Kube-proxy provides basic load balancing and directs traffic destined for specific services to the proper pod on the backend.ġ1.ETCD: It stores the configuration information which can be used by each of the nodes in the cluster. It provides an application-specific “virtual host” in a containerized environment.Ĥ.Pod: The smallest deployable units that can be created, scheduled, and managed. There is a single master node that control multiple minions.ģ.Minion/Node: It is a worker node that run tasks as delegated by the master. Sometimes called kube and k8s (that’s ‘k’ + 8 letters + ‘s’) Kubernetes – Cluster Architectureġ.Cluster: A cluster is a collection of hosts storage and networking resources that Kubernetes uses to run the various workloads that comprise your system.Ģ.Master: It is the central control point that provides a unified view of the cluster. It manages containerized applications across multiple hosts and provides basic mechanisms for deployment, maintenance, and scaling of applications. Kubernetes is an open source orchestration system for Docker containers.

#Ubuntu install docker and kubernetes how to

This document emphasizes what is kubernetes and how to setup single node kubernetes cluster on Ubuntu? What is Kubernetes?