报错的原因是未开启docker服务
service docker start开启docker服务
可以设置docker服务开机自动启动
systemctl enable docker.service
查看是否设置开机启动
systemctl list-unit-files | grep enable
查看已经开启的服务
systemctl list-units --type=service
报错Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
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转载自blog.csdn.net/qq_34745957/article/details/87922970
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