How to Install Kubernetes Using Kubeadm on Ubuntu 18

How to Install Kubernetes Using Kubeadm on Ubuntu 18

In this article, we review what Kubernetes and Kubeadm are, how to install, create a cluster, and set up worker nodes using Kubeadm. If you are not yet familiar with Kubernetes, we recommend reading our article on the fundamental basics of Kubernetes. How to Install Kubernetes Using Kubeadm on Ubuntu 18

In this article, we review what Kubernetes and Kubeadm are, how to install, create a cluster, and set up worker nodes using Kubeadm. If you are not yet familiar with Kubernetes, we recommend reading our article on the fundamental  basics of Kubernetes.

Kubernetes (or K8s as it is informally known) is an open-source system used for automating deployments, scaling, and management of containerized applications. Some benefits of Kubernetes include:

  • Automatic deployment and rollback of systems. Kubernetes gradually makes changes to an application or its configurations while monitoring its health to make sure it doesn’t destroy all the instances simultaneously. If something goes wrong, Kubernetes will roll back the changes for us.
  • Service discovery and load balancing. Kubernetes gives Pods their IP addresses and DNS name for the set of Pods and can distribute the load between them.
  • Orchestrating repositories. Users can automatically mount local or cloud storage systems.
  • Automatic container packaging. Kubernetes automatically distributes containers based on their resource requirements and other constraints. The better the containers and their resources are allocated, the better the system performance will be.
  • Using packages in Kubernetes. Apart from services, Kubernetes can manage your package settings.
  • Self-recovery. Kubernetes monitors the state of containers, and if something goes wrong, it can replace them with new containers. Also, containers that are already broken are recreated.
  • Kubeadm. It automates the installation and configuration of Kubernetes components, including the API server, Controller Manager, and Kube DNS.

What is Kubeadm?

kubeadm

Kubeadm is a toolkit that comes with the Kubernetes distribution that provides a best-practice method to build a cluster within an existing infrastructure. 

It carries out the steps needed to get a minimum viable cluster up and running.

apache mesos api container docker kubernetes

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