Friday, October 18, 2019

Docker 101 - Part1 - Installation

Enter cloud native! In this article, I will briefly explain how to build a virtual Docker host. Here I am installing Docker on a CentOS 7.4 virtual machine running on ESXi 6.5 which is part of a VMware vSAN cluster.

Prerequisites:
  • Deploy a basic CentOS 7.4 VM
  • Assign IP address and ensure the VM has internet connectivity
  • You should have root creds

Installation:
  • SSH to the CentOS VM as root
  • yum check-update
  • yum install -y yum-utils device-mapper-persistent-data lvm2
  • yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
  • yum install docker-ce
  • systemctl start docker
  • systemctl enable docker
  • systemctl status docker

Verify version:
  • docker version

Run your first container:
  • docker run hello-world

Hope it was useful. Cheers! In the next part, I will explain basic Docker commands and operations.

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References


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