ubuntu docker安装

1. 卸载历史版本冲突的配置信息

for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove $pkg; done

1. Install using the apt repository, Set up Docker's apt repository.

# 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

# 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

2. Install the Docker packages.To install the latest version, run

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

特定版本

# List the available versions:
apt-cache madison docker-ce | awk '{ print $3 }'

5:27.4.0-1~ubuntu.24.04~noble
5:27.3.1-1~ubuntu.24.04~noble
...

VERSION_STRING=5:27.4.0-1~ubuntu.24.04~noble
sudo apt-get install docker-ce=$VERSION_STRING docker-ce-cli=$VERSION_STRING containerd.io docker-buildx-plugin docker-compose-plugin

3. 验证安装结果

sudo docker run hello-world

4. 设置开机启动

sudo systemctl enable docker

5. 设置工作目录，配置镜像加速
touch /etc/docker/daemon.json

{
    "data-root": "/mnt/mydisk/docker",
    "registry-mirrors": ["https://mo4x3llw.mirror.aliyuncs.com"]
}

加载配置
sudo systemctl daemon-reload
sudo systemctl restart docker