docker v2安装

2026.03.25测试ok

正确修复（标准做法，一步到位）

✅ 1. 添加 Docker 官方仓库

sudo apt-get update

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

sudo install -m 0755 -d /etc/apt/keyrings

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | \

sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

sudo chmod a+r /etc/apt/keyrings/docker.gpg

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✅ 2. 添加 repo

echo \

"deb arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg \

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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✅ 3. 安装 compose plugin

sudo apt-get update

sudo apt-get install docker-compose-plugin -y

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✅ 4. 验证

docker compose version

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✅ 5. 运行

docker compose up -d