環境：ubuntu16.04
背景：拉取鏡像時，出現報錯，
ylh@y:~$ docker pull yz16/my_ros
Using default tag: latest
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.24/images/create?fromImage=yz16%2Fmy_ros&tag=latest: dial unix /var/run/docker.sock: connect: permission denied
解決辦法，在指令前添加sudo
ylh@y:~$ sudo docker pull yz16/my_ros
Using default tag: latest
latest: Pulling from yz16/my_ros
d3938036b19c: Pull complete
a9b30c108bda: Pull complete
67de21feec18: Pull complete
817da545be2b: Pull complete
d967c497ce23: Pull complete
fbf6bc04ecfe: Pull complete
d9f6c567cbfd: Pull complete
41ce9513a919: Pull complete
c8ea7a81e0c4: Pull complete
07430024c8bf: Pull complete
be56ee82f85e: Pull complete
e8265f2d3164: Pull complete
74fddc42dfed: Pull complete
67edf8f5d129: Pull complete
b404914d5053: Pull complete
e6e75faa399f: Pull complete
383b1ea94fbb: Pull complete
fc8c94dc07ef: Pull complete
09e10939de54: Pull complete
c0db6acfe2ed: Pull complete
1a55d1e19846: Pull complete
Digest: sha256:c50d60858487ae5bd936e91d279b8c479eed497842f1ec2ea998a849ee47a6a9
Status: Downloaded newer image for yz16/my_ros:latest
docker.io/yz16/my_ros:latest
ylh@y:~$
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不積硅步，無以至千里
好記性不如爛筆頭
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