? 步驟 1：卸載舊版本（如果有）

for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove $pkg; done```---### ? 步驟 2：更新 APT 索引并安裝依賴項```bash
sudo apt-get update
sudo apt-get install -y \ca-certificates \curl \gnupg \lsb-release

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? 步驟 3：添加 Docker 官方 GPG 密鑰

# Add Docker's official GPG key:
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

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? 步驟 4：設置 Docker 軟件源

# Add the repository to Apt sources:
echo \"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \$(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

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? 步驟 5：安裝 Docker 引擎

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

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? 步驟 6：驗證安裝

sudo docker run hello-world

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? 步驟 7（可選）：讓當前用戶可以不用 sudo 使用 docker

sudo usermod -aG docker $USER
newgrp docker

重新登錄后就可以直接運行：

docker ps

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🎉 安裝成功！

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如果你想一鍵腳本安裝

curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh ./get-docker.sh