Docker 데몬 소켓 연결 권한 거부

Docker 데몬 소켓 연결 권한 거부

permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock

 

• Docker 컨테이너의 목록을 표시

docker ps -a

$ docker ps -a
permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.24/containers/json?all=1": dial unix /var/run/docker.sock: connect: permission denied

• 파일의 권한과 소유자 정보를 나열

ls -l /var/run/docker.sock

$ ls -l /var/run/docker.sock
srw-rw---- 1 root docker 0 Jan 23 14:28 /var/run/docker.sock

• Docker 데몬 소켓에 권한 부여(/var/run/docker.sock)

sudo chmod 666 /var/run/docker.sock

$ ls -l /var/run/docker.sock
srw-rw-rw- 1 root docker 0 Feb  1 13:17 /var/run/docker.sock

• Docker 컨테이너의 목록을 표시

docker ps

$ docker ps
CONTAINER ID   IMAGE                      COMMAND                  CREATED        STATUS        PORTS                                                                          NAMES
b158bb6a2a92   anti1346/centos7:systemd   "/usr/lib/systemd/sy…"   18 hours ago   Up 18 hours   0.0.0.0:2222->22/tcp, :::2222->22/tcp, 0.0.0.0:8082->80/tcp, :::8082->80/tcp   centos7-systemd