Problem
默认安装完 docker 后,每次执行 docker 都需要运行 sudo 命令,非常浪费时间影响效率。
如果不跟 sudo,直接执行 docker images 命令会有如下问题:
[liujun@li1581-58 ~]$ docker psCannot connect to the Docker daemon. Is the docker daemon running on this host?[liujun@li1581-58 ~]$ ps -ef | grep dockerroot 7427 1 0 4月24 ? 00:13:22 /usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdriver=systemd --userland-proxy-path=/usr/libexec/docker/docker-proxy-current --selinux-enabled --log-driver=journald --signature-verification=falseroot 7431 7427 0 4月24 ? 00:01:13 /usr/bin/docker-containerd-current -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --shim docker-containerd-shim --metrics-interval=0 --start-timeout 2m --state-dir /var/run/docker/libcontainerd/containerd --runtime docker-runc --runtime-args --systemd-cgroup=trueroot 7738 7427 0 4月24 ? 00:00:02 /usr/libexec/docker/docker-proxy-current -proto tcp -host-ip 0.0.0.0 -host-port 9797 -container-ip 172.17.0.2 -container-port 9797root 7762 7431 0 4月24 ? 00:00:03 /usr/bin/docker-containerd-shim-current 4db3d279d762fd42a7ba9e773ba47d6b6d61c157247afd395c4a83ae8a35ca77 /var/run/docker/libcontainerd/4db3d279d762fd42a7ba9e773ba47d6b6d61c157247afd395c4a83ae8a35ca77 /usr/libexec/docker/docker-runc-currentroot 7837 7427 0 4月24 ? 00:00:02 /usr/libexec/docker/docker-proxy-current -proto tcp -host-ip 0.0.0.0 -host-port 6868 -container-ip 172.17.0.3 -container-port 6868root 7852 7431 0 4月24 ? 00:00:08 /usr/bin/docker-containerd-shim-current 99b7e7fdbbcd10245672a220154a9a7bc0d9d91a7a7fb641a778e60559089159 /var/run/docker/libcontainerd/99b7e7fdbbcd10245672a220154a9a7bc0d9d91a7a7fb641a778e60559089159 /usr/libexec/docker/docker-runc-currentliujun 19302 19028 0 01:45 pts/0 00:00:00 grep --color=auto docker
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