ubuntu下docker安装portainer软件

portainer是单机的容器管理软件，简单易用，基于docker compose部署的方法如下： 

mkdir data
 vi docker-compose.yml

services:
  portainer:
    image: portainer/portainer-ce:2.21.0
    container_name: portainer
    ports:
      - 9443:9443
    volumes:
      - ./data:/data
    restart: always
    privileged: true