![]() ![]() It’s now time to install Docker Community Edition. Whether you are working locally, get the newest installation package requirements. #Step 2: Install Dockerīefore installing any software, it is recommended to update the existing package list. As of writing of this guide the current latest available docker version is 20.10.8~3-0. ![]() You should see a similar output with domain as the priority source. You may want to double check the installation source priority for docker-ce package to make sure it is going to be installed from your recently added software repository. Sudo add-apt-repository "deb focal stable" Next, download the official Docker repository GPG key and add it to the apt-key trusted key manager:Īnd add the repository of Docker stable version for Ubuntu 20.04 (focal) to APT sources list: Sudo apt install apt-transport-https ca-certificates curl software-properties-common #Step 1: Set-up prerequisite packagesįirst, install a few Docker prerequisites that will allow you to use SSL data transfer ( apt-transport-https), add commonly used certificates ( ca-certificates), manage PPA’s ( software-properties-common), as well as download data from the Internet ( curl). ![]() Now that we know what Docker is and what it is used for, let’s dive into how to install Docker on Ubuntu 20.04 and how to start using it on Ubuntu in 6 steps to get you started. #How to Install Docker on Ubuntu 20.04 in 6 Steps Deploy the application to production as a container or a set of containers.Use the container to test your application.Develop an application and its supporting software in a container.With Docker you may manage the full lifecycle of your application development: Client and daemon communication may be accomplished using REST API, UNIX sockets or a network interface. The client and daemon may run on the same host, or you can connect a Docker client to a remote daemon. The client talks to the Docker daemon, which does most of the work of building, running, and distributing containers. They provide you with a stable running environment that is easily portable to different hosts.ĭocker uses a client-server architecture. #What is Docker container?Ĭontainers are self-sufficient software units with their own application code, configuration, and dependencies. This security and isolation enable you to execute many containers simultaneously on a given host. #What is Docker?ĭocker is an open-source platform that allows you to package and run an application in a loosely isolated environment called containers. If you are looking to install Docker Compose on Ubuntu instead, check out our detailed Docker Compose guide. This step-by-step Docker tutorial will demonstrate how to install Docker on Ubuntu 20.04 server, as well as how to start Docker on Ubuntu. ![]()
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