Installing and Configuring the Docker Engine

1 hour
  • 3 Learning Objectives

About this Hands-on Lab

Docker CE is a great way to get started using the Docker engine. It is free and open source, but provides a high-quality container runtime. This lab will help you practice the steps involved in installing and configuring the Docker Engine. You will practice installing Docker CE and configuring a logging driver. This lab will help provide you with some basic insight into how the Docker Engine is installed and configured on systems in the real world.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Install Docker CE on the Server
  • Make sure old versions of Docker are not present on the system:

    sudo apt-get remove docker docker-engine containerd runc
  • Update the apt package index and install the packages needed for apt to use a repository over HTTPS:

    sudo apt update -y
    sudo apt install -y ca-certificates curl gnupg
  • Add the official Docker GPG key.

  • Set up the repository.

  • Install Docker packages.

  • Verify that your installation is working.

Give cloud_user Access to Run Docker Commands
  • Make sure the docker group was created:

    sudo groupadd docker
  • Add your user to the docker group:

    sudo usermod -aG docker $USER
  • Either log out and back in as the cloud_user, or run this command:

    newgrp docker
  • After logging back in or executing the mentioned command, verify the access for the cloud_user.

Set the Default Logging Driver to syslog
  • Edit daemon.json:

    sudo vi /etc/docker/daemon.json
  • Add configuration to daemon.json to set the default logging driver:

    "log-driver": "syslog"
  • Restart Docker:

    sudo systemctl restart docker
  • Verify that the logging driver was set properly:

    docker info | grep Logging
  • This command should return a line that says:

    Logging Driver: syslog
  • Additionally, you can configure Docker to start on boot.

Additional Resources

Your company is ready to start using Docker on some of their servers. In order to get started, they want you to set up and configure Docker CE on a server that has already been set up. You will need to make sure that the server meets the following specifications:

  • Docker CE is installed and running on the server.
  • Use the latest Docker CE version.
  • The user cloud_user has permission to run Docker commands.
  • The default logging driver is set to syslog.

If you get stuck, feel free to check out the solution video, or the detailed instructions under each objective. Good luck!

What are Hands-on Labs

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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