Ubuntu国内镜像Docker安装详细教程

参考文献

Install Docker Engine on Ubuntu
如果你使用其他系统例如debian，请直接去官网查看，步骤稍微略有不同。

安装Docker

温馨提示：请记得先确认设置好Ubuntu的镜像源

懒惰的人可以直接通过以下命令安装+改源

bash <(curl -sSL https://linuxmirrors.cn/docker.sh)

升级

Update the apt package index and install packages to allow apt to use a repository over HTTPS:

sudo apt-get update
sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

Add Docker’s official GPG key:

sudo mkdir -m 0755 -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

Use the following command to set up the repository:

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

安装Docker Engine

Update the apt package index:

sudo apt-get update

Install Docker Engine, containerd, and Docker Compose.

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

测试并安装没用的镜像：

sudo docker run hello-world

添加Docker image的国内镜像 Add registry

登录阿里云镜像加速来获取你的镜像加速地址
只添加阿里源：

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://example.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

全部源添加：
查看是否有这个文件：/etc/docker/daemon.json
没有直接sudo nano新增

{
  "registry-mirrors": [
    "https://example.mirror.aliyuncs.com",
    "https://hub-mirror.c.163.com",
    "https://mirror.baidubce.com"
  ]
}

如果本身已有daemon.json,则应该如下示例

{
  "log-opts": {
    "max-size": "5m",
    "max-file":"3"
  },
  "exec-opts": ["native.cgroupdriver=systemd"],
  "registry-mirrors":[
          "https://qwe67a1n.mirror.aliyuncs.com",
          "https://hub-mirror.c.163.com",
          "https://mirror.baidubce.com"
    ]
}

之后重新启动服务。

sudo systemctl daemon-reload
sudo systemctl restart docker

检查加速器是否生效
执行 $ docker info，(如果Docker还未配置用户，则需要用sudo) 如果从结果中看到了如下内容，说明配置成功。

Registry Mirrors:
 https://hub-mirror.c.163.com/

安装portainer

Portainer CE安装