MacOs docker异常 Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

• 问题描述：
  mac异常重启后，发现docker无法正常工作，具体表现

  • docker-desktop打开无反应，顶部不会出现小鲸鱼图标
  • 执行一些docker相关的命令会报错:

    Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
    

• 解决办法：卸载重装docker-desktop

  • step1.0: 在折腾的过程中参照菜鸟教程的案例通过$ brew install --cask --appdir=/Applications docker安装过docker，所以此处我brew卸载一下以防有残留, 如果之前没有使用brew安装的可跳过

    # 卸载docker, 在折腾之前
    brew uninstall --cask docker
    

  • step1.1: 卸载docker-desktop, 参照官方github uninstall.sh脚本

    #!/bin/bash
    
    # Uninstall Script
    
    if [ "${USER}" != "root" ]; then
    	echo "$0 must be run as root!"
    	exit 2
    fi
    
    while true; do
      read -p "Remove all Docker Machine VMs? (Y/N): " yn
      case $yn in
        [Yy]* ) docker-machine rm -f $(docker-machine ls -q); break;;
        [Nn]* ) break;;
        * ) echo "Please answer yes or no."; exit 1;;
      esac
    done
    
    echo "Removing Applications..."
    rm -rf /Applications/Docker.app
    
    echo "Removing docker binaries..."
    rm -f /usr/local/bin/docker
    rm -f /usr/local/bin/docker-machine
    rm -r /usr/local/bin/docker-machine-driver*
    rm -f /usr/local/bin/docker-compose
    
    echo "Removing boot2docker.iso"
    rm -rf /usr/local/share/boot2docker
    
    echo "Forget packages"
    pkgutil --forget io.docker.pkg.docker
    pkgutil --forget io.docker.pkg.dockercompose
    pkgutil --forget io.docker.pkg.dockermachine
    pkgutil --forget io.boot2dockeriso.pkg.boot2dockeriso
    
    echo "All Done!"
    

  • step2.1: 安装docker, 下载 Docker.dmg， 安装之