[ubuntu] Ubuntu에 docker 설치

Ubuntu 에 docker 설치

설치 환경 : Ubuntu 16.04

Prerequisites

64-bit Ubuntu 16.04 Droplet

Non-root user with sudo privileges Initial Setup Guide for Ubuntu 16.04 explains how to set this up.

Note: Docker requires a 64-bit version of Ubuntu as well as a kernel version equal to or greater than 3.10. The default 64-bit Ubuntu 16.04 Droplet meets these requirements.

// 1. Docker repository 설정

1. But first, let's update the package database:

$ sudo apt-get update

2. Now let's install Docker. Add the GPG key for the official Docker repository to the system:

$ sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

3. Update the package database with the Docker packages from the newly added repo

$ sudo apt-get update

4. Make sure you are about to install from the Docker repo instead of the default Ubuntu repo

$ sudo apt-cache policy docker-engine

// 2. Docker Package 설치

1.  Docker 설치

$ sudo apt-get install -y docker-engine

2. Docker should now be installed, the daemon started, and the process enabled to start on boot. Check that it's running:

$ sudo systemctl status docker

// 3. Executing the Docker Command Without Sudo 

If you want to avoid typing sudo whenever you run the docker command, add your username to the docker group:

$ sudo usermod -aG docker $(whoami)

If you need to add a user to the docker group that you're not logged in as, declare that username explicitly using:

$ sudo usermod -aG docker username

// 4. Docker 명령어

$ sudo docker --version

Docker version 17.04.0-ce, build 4845c56

-- Docker 실행

$ docker run 도커명

예) 테스트 실행

$ docker run hello-world

-- Docker 컨테이너 종료

$ docker stop 컨테이너

-- Docker 컨테이너 삭제

$ docker rm 컨테이너명

-- Docker 이미지 삭제

$ docker rmi 이미지명

-- 프로세스 확인

$ docker ps

-- 정보확인

$ docker info

등록일 : 2017.04.12

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