Ubuntu安装Docker | StanleyLog

基于Ubuntu 22.04 LTS系统上安装Docker Engine28.0.1的操作手册。

检查已安装或冲突的包

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

安装Docker Apt仓库

# 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 \
  $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

安装Docker Engine

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

配置用户组

sudo groupadd docker
sudo usermod -aG docker $USER

验证安装

### 验证镜像拉取和运行容器
sudo docker run hello-world

#### 查看/lib/systemd/system目录中的docker.service是否创建
ls -l /lib/systemd/system/docker.service

### 查看docker.service状态
sudo systemctl status docker

配置Docker

sudo cat > /etc/docker/daemon.json <<EOF
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "storage-driver": "overlay2"
}
EOF