本文总结docker的安装和使用方法

1 docker的安装和使用方法

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# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

1.1 安装docker相关软件包

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sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

1.2 测试docker是否正常

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 sudo service docker start
 sudo docker run hello-world

1.3 修改docker工作路径

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# 查看docker默认路径
sudo docker info | grep "Docker Root Dir"

# 停止docker服务
sudo systemctl stop docker
sudo systemctl stop docker.socket

# Copy the files to your new docker directory.
sudo rsync -axPS /var/lib/docker/ /data/docker/

# edit file:/etc/docker/daemon.json and add content as follow,if file  not exit, create.
{
  "data-root": "/path/to/new/docker-data"
}

# 启动docker 
sudo systemctl daemon-reload
sudo systemctl start docker

# 确认路径是否已更新
docker info | grep 'Docker Root Dir
docker ps

# remove old file
sudo rm -r /var/lib/docker

2.4 配置docker镜像源

在配置文件/etc/docker/daemon.json中增加docker镜像源。

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  "registry-mirrors": [
    "https://docker.1panel.live",
    "https://docker.1ms.run",
    "https://dytt.online",
    "https://docker-0.unsee.tech",
    "https://lispy.org",
    "https://docker.xiaogenban1993.com",
    "https://666860.xyz",
    "https://hub.rat.dev",
    "https://docker.m.daocloud.io",
    "https://demo.52013120.xyz",
    "https://proxy.vvvv.ee",
    "https://registry.cyou"
  ]

添加完成后，执行如下命令容器docker:

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sudo systemctl daemon-reload
sudo systemctl start docker

2.5 下载docker镜像

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docker image pull zuojxin/xv6

# 查询docker镜像
sudo docker images -a

# 删除镜像
sudo docker image rm

2.6 运行docker镜像

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cd /opt/xv6-riscv
docker run -it --rm -v $(pwd):/home/xv6-riscv zuojxin/xv6

2.4 卸载docker

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sudo apt-get purge docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras

sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd

sudo rm /etc/apt/sources.list.d/docker.list
sudo rm /etc/apt/keyrings/docker.asc