docker ubuntu 在线安装教程

安装前准备,在ubuntu中执行如下的命令:

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 \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null;\
sudo apt-get update

安装docker镜像

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

测试镜像

sudo docker run hello-world

镜像加速器

需要登录aliyun

左上角找到目录图标

上图中的红色方框里的就是aliyun镜像的地址

在你的服务器上执行如下的命令:

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

执行完就可以了,实际上是改变了/etc/docker/daemon.json文件的register-mirrors的属性值.