Docker 安装完成后报错问题解决

问题描述

查询Docker版本,报错如下

docker version
[root@localhost ~]# docker version
Client: Docker Engine - Community
 Version:           19.03.10
 API version:       1.40
 Go version:        go1.13.10
 Git commit:        9424aeaee9
 Built:             Thu May 28 22:18:06 2020
 OS/Arch:           linux/amd64
 Experimental:      false
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running

问题解决

原因很简单,Docker服务未启动,启动下就好了

sudo su # 获取root权限
systemctl enable docker # 开机自动启动docker
systemctl start docker # 启动docker

再次执行docker version,信息输出如下,表示正常

[root@localhost ~]# docker version
Client: Docker Engine - Community
 Version:           19.03.10
 API version:       1.40
 Go version:        go1.13.10
 Git commit:        9424aeaee9
 Built:             Thu May 28 22:18:06 2020
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          19.03.10
  API version:      1.40 (minimum version 1.12)
  Go version:       go1.13.10
  Git commit:       9424aeaee9
  Built:            Thu May 28 22:16:43 2020
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.2.13
  GitCommit:        7ad184331fa3e55e52b890ea95e65ba581ae3429
 runc:
  Version:          1.0.0-rc10
  GitCommit:        dc9208a3303feef5b3839f4323d9beb36df0a9dd
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683
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