我是Docker世界的新手。在Docker上安装了centOS-7，并持续遇到以下错误。我使用以下命令安装了docker-composed
我在这里所做的所有事情：Cannot connect to the Docker daemon. Is the docker daemon running on this host?，但对于具有CentOs盒的我来说却不起作用。
sudo curl -L "https://github.com/docker/compose/releases/download/1.22.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
Nect步骤
sudo chmod +x /usr/local/bin/docker-compose
下一步
sudo groupadd docker
sudo gpasswd -a $USER docker
sudo usermod -aG docker $USER
sudo usermod -aG docker $(whoami)
sudo systemctl enable docker.service
现在，当我执行最后一条命令时，即使rebbot VM没有启动，centOS机器也挂起了。我无法对那台机器执行ping操作。
我已经发布了步骤的每个日志-
[user@vannila ~]$ sudo curl -L "https://github.com/docker/compose/releases/download/1.22.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
[sudo] password for dc-user:
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 617 0 617 0 0 1527 0 --:--:-- --:--:-- --:--:-- 1531
100 11.2M 100 11.2M 0 0 1388k 0 0:00:08 0:00:08 --:--:-- 1822k
[user@vannila ~]$ sudo chmod +x /usr/local/bin/docker-compose
[user@vannila ~]$ sudo groupadd docker
groupadd: group 'docker' already exists
[user@vannila ~]$ sudo gpasswd -a $USER docker
Adding user dc-user to group docker
[user@vannila ~]$ sudo usermod -aG docker $USER
[user@vannila ~]$ sudo service docker status
Redirecting to /bin/systemctl status docker.service
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: inactive (dead)
Docs: https://docs.docker.com
[user@vannila ~]$ sudo usermod -aG docker $(whoami)
[user@vannila ~]$ sudo systemctl enable docker.service
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
[user@vannila ~]$ sudo systemctl start docker.service
让我知道是否需要其他详细信息。