[Docker] 암시적 docker volumes

ubuntu@docker:~$ docker create -v /share-data --name=share-container ubuntu:14.04
ubuntu@docker:~$ docker ps -a | grep share
 47a1162b1f8b   ubuntu:14.04   "/bin/bash"     24 seconds ago   Created      share-container

ubuntu@docker:~$ docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
ubuntu@docker:~$
ubuntu@docker:~$
ubuntu@docker:~$
ubuntu@docker:~$ docker ps -a
CONTAINER ID   IMAGE          COMMAND       CREATED         STATUS    PORTS     NAMES
9d7386d93939   ubuntu:14.04   "/bin/bash"   3 minutes ago   Created             share-container
ubuntu@docker:~$
ubuntu@docker:~$
ubuntu@docker:~$
ubuntu@docker:~$ docker ps -a | grep share
9d7386d93939   ubuntu:14.04   "/bin/bash"   3 minutes ago   Created             share-container

 

ubuntu@docker:~$ docker inspect share-container

ubuntu@docker:~$ docker run -it --volumes-from share-container --name=data-1 ubuntu:14.04 bash

root@0ca96e6079fb:/# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin share-data srv sys tmp

 

 

root@0ca96e6079fb:/# ls share-data/
root@0ca96e6079fb:/# echo 'testing data container' > /share-data/data-1.txt
root@0ca96e6079fb:/#
root@0ca96e6079fb:/# ls share-data/
data-1.txt

 

현재 지금까지 어떤 작업을 했냐면 share-data 밑에 data-1을 만들었다. data1 컨테이너에 텍스트를 만들었으니까 share-container에 있는 share-data를 땡겨 쓴것이다. 

 

 

다음으로 data-2 컨테이너를 만들어서 share-container의 볼륨을 공유해볼 것이다. 

ubuntu@docker:~$ docker run -it --volumes-from share-container --name=data-2 ubuntu:14.04 bash

root@59275cece8f1:/# ls share-data/
data-1.txt
root@59275cece8f1:/# cat share-data/data-1.txt
testing data container

 

컨테이너랑 컨테이너끼리 연결해줌 예를 들면 웹 페이지와 데이터 베이스를 연결해준 것과 유사하다.