[실습] Docker 전체 흐름 다시 느껴보기 (Nginx 설치 및 실행)

1. Docker를 활용해 Nginx 실행
1) Nginx 이미지 다운로드
Docker Hub - nginx : https://hub.docker.com/_/nginx

nginx - Official Image | Docker Hub

- Windows PowerShell

PS C:\Users\admin> docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
Digest: sha256:6e23479198b998e5e25921dff8455837c7636a67111a04a635cf1bb363d199dc
Status: Image is up to date for nginx:latest
docker.io/library/nginx:latest

What's next:
    View a summary of image vulnerabilities and recommendations → docker scout quickview nginx

2) 다운로드 된 이미지 확인
- Windows PowerShell

PS C:\Users\admin> docker image ls
                                                                                                                                                                                             i Info →   U  In Use
IMAGE          ID             DISK USAGE   CONTENT SIZE   EXTRA
nginx:latest   6e23479198b9        240MB         65.8MB

· ls : list 의 약자

3) 이미지를 컨테이너에 올려 Nginx 서버 실행
- Windows PowerShell

PS C:\Users\admin> docker run --name webserver -d -p 80:80 nginx
d6c5a7aeb0493d2eddb23ef0f513f1fa5cd538e88e81dfe2b08d3c2b6492bf0c

4) Nginx 서버가 잘 실행되는 지 확인
브라우저에서 http://localhost:80/ 접속

 

Nginx 서버 실행 확인

5) 실행되고 있는 모든 컨테이너 상태 확인
- Windows PowerShell

PS C:\Users\admin> docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED         STATUS         PORTS                                 NAMES
d6c5a7aeb049   nginx     "/docker-entrypoint.…"   2 minutes ago   Up 2 minutes   0.0.0.0:80->80/tcp, [::]:80->80/tcp   webserver

6) 특정 컨테이너 정지
- Windows PowerShell

PS C:\Users\admin> docker stop webserver
webserver
PS C:\Users\admin> docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
PS C:\Users\admin> docker ps -a
CONTAINER ID   IMAGE     COMMAND                  CREATED         STATUS                      PORTS     NAMES
d6c5a7aeb049   nginx     "/docker-entrypoint.…"   3 minutes ago   Exited (0) 22 seconds ago             webserver

이후 브라우저에서 http://localhost:80/ 접속하면 Nginx 서버가 종료된 것을 확인할 수 있다.

 

Nginx 서버 종료 확인

7) 컨테이너 삭제 & 이미지 삭제
- Windows PowerShell

PS C:\Users\admin> docker rm d6c5
d6c5
PS C:\Users\admin> docker ps -a
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
PS C:\Users\admin> docker image ls
                                                                                                                                                                                             i Info →   U  In Use
IMAGE          ID             DISK USAGE   CONTENT SIZE   EXTRA
nginx:latest   6e23479198b9        240MB         65.8MB
PS C:\Users\admin> docker image rm 6e23
Untagged: nginx:latest
Deleted: sha256:6e23479198b998e5e25921dff8455837c7636a67111a04a635cf1bb363d199dc
PS C:\Users\admin> docker image ls
                                                                                                                                                                                             i Info →   U  In Use
IMAGE   ID             DISK USAGE   CONTENT SIZE   EXTRA

 

그림으로 이해하기

참고링크 : https://www.inflearn.com/course/%EB%B9%84%EC%A0%84%EA%B3%B5%EC%9E%90-docker-%EC%9E%85%EB%AC%B8-%EC%8B%A4%EC%A0%84?cid=334085

비전공자도 이해할 수 있는 Docker 입문/실전| JSCODE 박재성 - 인프런 강의