[Docker] Ubuntu 도커 설치

Ubuntu와 Docker

이 글에서는 Ubuntu 도커 설치와 관련된 내용을 다룬다. Docker는 리눅스를 기반으로 하기 때문에 리눅스 운영체제 위에서 돌아가야한다. Ubuntu는 Linux계열 운영체제로 바로 설치가 가능하다.

 

Ubuntu Docker 설치

Install Docker Engine on Ubuntu

$ sudo apt-get update
 
$ sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

apt가 HTTPS 프로토콜을 통해서 repository를 사용할 수 있도록 패키지를 설치한다.

 

 

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

Docker의 공식 GPG key를 추가한다.

 

 

$ echo \
  "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

apt source list에 repository를 추가한다.

 

 

$ sudo apt-get update
$ sudo apt-get install docker-ce

apt package index를 update하고 Docker를 설치한다.

 

 

Docker 정상 설치 확인

ubuntu@ubuntu-Parallels-Virtual-Platform:~$ sudo docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES

ubuntu@ubuntu-Parallels-Virtual-Platform:~$ sudo docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
b8dfde127a29: Pull complete
Digest: sha256:61bd3cb6014296e214ff4c6407a5a7e7092dfa8eefdbbec539e133e97f63e09f
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

정상적으로 Docker가 설치되고 이미지를 받아서 컨테이너를 생성할 수 있는 것을 확인할 수 있다.