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install docker in WSL2

11 Mar 2022 Tags:
wsl, docker, postgresql, command


이전 포스트: WSL 설치하기
참고: docker docs

저장소 설정

  • HTTPS를 통해 리포지토리를 사용할 수 있도록 패키지 인덱스를 업데이트하고 apt패키지를 설치 
    sudo apt-get update
sudo apt-get install \
  ca-certificates \
  curl \
  gnupg \
  lsb-release
  • Docker의 공식 GPG 키 추가: 
    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

도커 엔진 설치

  • apt패키지 인덱스를 업데이트하고 최신 버전의 Docker Engine 및 containerd를 설치(또는 특정 버전을 설치-공식 docs 참고) 
    sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io

도커 설치 확인(오류 발생)

$ sudo docker version

Client: Docker Engine - Community
 Version:           20.10.13
 API version:       1.41
 Go version:        go1.16.15
 Git commit:        a224086
 Built:             Thu Mar 10 14:07:51 2022
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

$ systemctl status

System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down

오류 해결(아래 명령어 실행)

1번 방법

sudo -b unshare --pid --fork --mount-proc /lib/systemd/systemd --system-unit=basic.target

참고) https://askubuntu.com/questions/1379425/system-has-not-been-booted-with-systemd-as-init-system-pid-1-cant-operate

2번 방법

sudo apt-get update && sudo apt-get install -yqq daemonize dbus-user-session fontconfig
sudo daemonize /usr/bin/unshare --fork --pid --mount-proc /lib/systemd/systemd --system-unit=basic.target
exec sudo nsenter -t $(pidof systemd) -a su - $LOGNAME
snap version

참고) https://gist.github.com/alyleite/ca8b10581dbecd722d9dcc35b50d9b2b

$ sudo docker version

Client: Docker Engine - Community
 Version:           20.10.13
 API version:       1.41
 Go version:        go1.16.15
 Git commit:        a224086
 Built:             Thu Mar 10 14:07:51 2022
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.13
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.16.15
  Git commit:       906f57f
  Built:            Thu Mar 10 14:05:44 2022
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.5.10
  GitCommit:        2a1d4dbdb2a1030dc5b01e96fb110a9d9f150ecc
 runc:
  Version:          1.0.3
  GitCommit:        v1.0.3-0-gf46b6ba
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

postgresql 설치

docker run --name rest -p 5432:5432 -e POSTGRES_PASSWORD=pass -d postgres

sudo docker ps

CONTAINER ID   IMAGE      COMMAND                  CREATED              STATUS              PORTS                                       NAMES
389ad2d36ff3   postgres   "docker-entrypoint.s…"   About a minute ago   Up About a minute   0.0.0.0:5432->5432/tcp, :::5432->5432/tcp   rest

postgresql 실행

  • exec : 실행 / -i : 인터렉티브 / -t : 컨테이너 타겟 / bash : 어떤 명령어를 실행할지 
    sudo docker exec -i -t rest bash

postgresql 연결하기(컨테이너 안으로 들어가기)

  • 데이터베이스이름, 기본유저이름이 postgres 
    psql -d postgres -U postgres

Query Databases

\l

Query Tables

\dt

Quit

\q

컨테이너 실행하기

sudo docker start rest

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