1.查看系统

[root@VM-12-14-opencloudos ~]# cat /etc/os-release
NAME="OpenCloudOS"
VERSION="8.10"
ID="opencloudos"
ID_LIKE="rhel fedora"
VERSION_ID="8.10"
PLATFORM_ID="platform:oc8"
PRETTY_NAME="OpenCloudOS 8.10"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:opencloudos:opencloudos:8"
HOME_URL="https://www.opencloudos.org/"
BUG_REPORT_URL="https://bugs.opencloudos.tech/"
[root@VM-12-14-opencloudos ~]#

2.安装Docker

sudo dnf update -y  #更新系统
sudo dnf -y install dnf-plugins-core  #安装核心插件
sudo dnf config-manager --add-repo=https://repo.huaweicloud.com/docker-ce/linux/centos/docker-ce.repo  #配置国内镜像
sudo sed -i 's+download.docker.com+repo.huaweicloud.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo # 说明：该变量在 CentOS 中有效，但在 openEuler 中无效，所以将该变量直接改为8。
sudo sed -i 's+$releasever+8+'  /etc/yum.repos.d/docker-ce.repo
sudo dnf makecache  #更新仓库镜像

sudo dnf -y install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin --skip-broken   #正式安装
sudo systemctl enable docker  #开机启动  
sudo systemctl start docker  #运行
docker --version #查看版本
docker ps #查看容器

mkdir -p  /etc/docker
touch /etc/docker/daemon.json

cd /etc/docker
cat > /etc/docker/daemon.json << EOF
{
  "registry-mirrors": ["https://docker.registry.cyou","https://docker-cf.registry.cyou","https://dockercf.jsdelivr.fyi","https://docker.jsdelivr.fyi","https://dockertest.jsdelivr.fyi","https://mirror.aliyuncs.com","https://dockerproxy.com","https://mirror.baidubce.com","https://docker.m.daocloud.io","https://docker.nju.edu.cn","https://docker.mirrors.sjtug.sjtu.edu.cn","https://docker.mirrors.ustc.edu.cn","https://mirror.iscas.ac.cn","https://docker.rainbond.cc"],
  "insecure-registries": ["0.0.0.0/0"],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
EOF

sudo systemctl restart docker  #重启docker

# 非root用户使用docker
sudo gpasswd -a [username] docker    #将当前用户添加至用户组
sudo newgrp docker                      #更新用户组