Ubuntu Linux 에서 Docker 설치하기

2025.2.14

 

생각보다 자주 필요해서 Docker 설치하기 독립글로 분리합니다. 

원문글은 다음 링크에서 확인하실 수 있습니다.

https://docs.docker.com/engine/install/ubuntu/

Ubuntu

 

Install using the apt repository

Before you install Docker Engine for the first time on a new host machine, you need to set up the Docker apt repository. Afterward, you can install and update Docker from the repository.

1. Set up Docker's apt repository.

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

• Install the Docker packages.

To install the latest version, run:

 sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

 

• Verify that the installation is successful by running the hello-world image:

 sudo docker run hello-world

This command downloads a test image and runs it in a container. When the container runs, it prints a confirmation message and exits.

 

보너스

-- docker 명령어를 sudo 없이 실행 가능하게 해줍니다. 재로그인 이후 적용됩니다.
$  sudo usermod -aG docker $USER