docker安装20260403

最常见，也是最适合后面玩 k8s 的环境

✅ 1. 卸载旧版本（可跳过）

 

sudo apt-get remove docker docker-engine docker.io containerd runc

 

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✅ 2. 安装依赖

 

sudo apt-get update
sudo apt-get install -y ca-certificates curl gnupg

 

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✅ 3. 添加官方源

 

sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo tee /etc/apt/keyrings/docker.asc > /dev/null

 

 

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

 

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✅ 4. 安装 Docker

 

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

 

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✅ 5. 启动 Docker

 

sudo systemctl start docker
sudo systemctl enable docker

 

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✅ 6. 验证

 

docker --version
sudo docker run hello-world

 

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⚠️（强烈建议）免 sudo

 

sudo usermod -aG docker $USER

 

👉 然后 重新登录终端