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docker 3 min read 4.8 KB Raw Markdown
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Docker

  • http://docker.com
  • Build, Ship, Run
  • 개발자와 시스템어드민을 위한 분산 애플리케이션용 오픈 플랫폼

Install

Basic keywords

sh
docker version
docker ps
docker info
docker images
docker container ls
docker container ls -a
  • docker run hello-world
    • docker : 시스템에 있는 docker 사용
    • run : 서브명령, 컨테이너 실행
    • hello-world : 컨테이너에 실을 이미지 이름
  • 컨테이너는 아무것도 꾸미지 않은 버전의 리눅스 운영체제
  • 고래가라사대
    • docker hub 이미지 정보
      • 포함한 소프트웨어 종류와 사용법
  • docker run -it -p 80:80 docker/getting-started
  • stop
sh
➜  ~ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                         NAMES
92d58318f84e        nginx               "nginx -g 'daemon off"   27 hours ago        Up 27 hours         0.0.0.0:80->80/tcp, 443/tcp   webserver
0235bd537f03        nginx               "nginx -g 'daemon off"   27 hours ago        Up 27 hours         80/tcp, 443/tcp               boring_hypatia
➜  ~ docker stop nginx
Error response from daemon: No such container: nginx
➜  ~ docker stop 92d58318f84e
92d58318f84e

실행중인 도커 접속

sh
docker exec -it  92d58318f84e /bin/bash

이미지 불러오기

  • docker pull imagename

컨테이너 전체 삭제

sh
docker ps -aq
docker stop $(docker ps -aq)
docker rm $(docker ps -aq)

이미지 만들기

dockerfile
# syntax=docker/dockerfile:1

FROM node:18-alpine
WORKDIR /app
COPY . .
RUN yarn install --production
CMD ["node", "src/index.js"]
EXPOSE 3000
  • docker build -t getting-started .
  • docker run -p 4000:3000 getting-started
  • curl localhost:4000
  • docker tag getting-started kenu/get-started:part2

이미지 업로드

  • docker push kenu/get-started:part2

원격 이미지 로컬에서 실행

  • docker run -p 4000:3000 kenu/get-started:part2
  • curl localhost:4000

업로드 이미지 삭제

sh
export USERNAME=myuser
export PASSWORD=mypass
export ORGANIZATION=myorg (if it's personal, then it's your username)
export REPOSITORY=myrepo
export TAG=latest

curl -u $USERNAME:$PASSWORD -X "DELETE" https://cloud.docker.com/v2/repositories/$ORGANIZATION/$REPOSITORY/tags/$TAG/

네트워크

AWS EC2

  • docker 설치
sh
sudo dnf update -y
sudo dnf install docker -y
sudo systemctl start docker
# for ec2-user permission
sudo usermod -a -G docker ec2-user
sudo reboot

sh
docker ps

sh
DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
mkdir -p $DOCKER_CONFIG/cli-plugins

sh
curl -SL https://github.com/docker/compose/releases/download/v2.40.0/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose
curl -SL https://github.com/docker/compose/releases/download/v2.40.0/docker-compose-linux-aarch64 -o $DOCKER_CONFIG/cli-plugins/docker-compose
chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose

sh
docker compose version

Cases

  • copy file
    • docker cp d362659da5fc:/opt/app/app.log .
      • d362659da5fc: container id

참고

sh
docker ps
docker images
docker images ubuntu
docker run -i -t ubuntu:12.10 /bin/bash

ps faxw
ls
rm -rf /var /usr /lib
ls /var
exit

ssh dockerdev
sudo -s
docker ps
docker diff 7b882b11bc8e
docker commit 7b882b11bc8e shykes/broken-ubuntu
docker run -i -t shykes/broken-ubuntu /bin/bash

docker push shykes/broken-ubuntu
https://index.docker.io

ref