1、安装docker

sudo yum remove docker \
        docker-client \
        docker-client-latest \
        docker-common \
        docker-latest \
        docker-latest-logrotate \
        docker-logrotate \
        docker-selinux \
        docker-engine-selinux \
        docker-engine

sudo yum install -y yum-utils device-mapper-persistent-data

sudo yum-config-manager \
    --add-repo https://download.docker.com/linux/centos/docker-ce.repo

sudo yum install docker-ce
sudo systemctl start docker

sudo docker run hello-world

sudo docker pull portainer/portainer

docker volume create portainer_data

docker run -d -p 9000:9000 \
    -v /var/run/docker.sock:/var/run/docker.sock \
    -v portainer_data:/data portainer/portainer