deploy a workload
configs:
name:
    mysql
docker image
    mariadb:10.6.0
    
MYSQL_ROOT_PASSWORD
    it's a secret
volumes
    path on the node:
    /var/michael/rancher/mariadb
    Mount point:
    /var/lib/mysql
    The Path on the Node must be A directory,or create if it does not exist 
lanch
