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 docker.io containerd runcUpdate 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 gnupgAdd 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
dockergroup was created:sudo groupadd dockerAdd your user to the
dockergroup:sudo usermod -aG docker $USEREither log out and back in as the
cloud_user, or run this command:newgrp dockerAfter 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.jsonAdd configuration to
daemon.jsonto set the default logging driver:{ "log-driver": "syslog" }Restart Docker:
sudo systemctl restart dockerVerify that the logging driver was set properly:
docker info | grep LoggingThis command should return a line that says:
Logging Driver: syslogAdditionally, you can configure Docker to start on boot.
