How to Install Docker on Ubuntu: A Step-by-Step Guide
Introduction
Docker makes app development easier. It helps you build, share, and run apps easily. This guide shows how to install Docker on Ubuntu.
Prerequisites
You need:
- Ubuntu 20.04 or 18.04.
- Sudo privileges.
Step 1: Update System
First, update your system:
sudo apt-get update
Step 2: Install Packages
Install these packages next:
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
Step 3: Add GPG Key
Add Docker's GPG key:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Step 4: Add Repository
Add the Docker repository:
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Step 5: Install Docker
Install Docker CE:
sudo apt-get update
sudo apt-get install docker-ce
Step 6: Check Installation
Test Docker with:
sudo docker run hello-world
Use Docker Without Sudo (Optional)
To avoid using sudo
:
sudo usermod -aG docker ${USER}
Log out and back in.
Conclusion
You installed Docker on Ubuntu. Now, explore Docker's features. For optimal performance, consider using Akmatori for global application delivery. It ensures low latency, high availability, and enhanced security for your containerized applications
FAQ
Update Docker?
- Run
sudo apt-get update
thensudo apt-get upgrade docker-ce
.
- Run
Install on other Linux versions?
- Yes, check Docker's documentation.
More Docker resources?
- Start with Docker's documentation and online tutorials.