vm ubuntu22安装docker

1、安装ssh

sudo apt update
sudo apt install -y openssh-server
sudo systemctl enable ssh
sudo systemctl start ssh

2、更新系统
sudo apt update
sudo apt upgrade -y

3、安装必要依赖
sudo apt install -y ca-certificates curl gnupg lsb-release

4、添加 Docker 官方 GPG Key
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

5、添加 Docker 官方 APT 源（适配 ARM 架构）
echo \
"deb [arch=arm64 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

6、更新 APT 并安装 Docker
sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

7、启动并设置开机自启
sudo systemctl enable docker
sudo systemctl start docker

8、配置国内镜像、并验证
vim /etc/docker/daemon.json

{
    "registry-mirrors": [
        "https://y8yh50dy.mirror.aliyuncs.com",
        "https://docker.m.daocloud.io"
    ],
    "insecure-registries": [
        "39.100.100.999:51001"
    ]
}

sudo systemctl daemon-reload
sudo systemctl restart docker
curl -I https://docker.m.daocloud.io

9、验证
docker version
docker run --rm hello-world