1，Ansible安装：
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo sed -i '/aliyuncs/d' /etc/yum.repos.d/epel.repo yum clean all yum makecache yum install epel-release
yum install ansible
yum install -y salt-master yum install -y salt-ssh yum install -y salt-syndic yum install -y salt-cloud
yum install -y salt-minion yum install -y salt-ssh yum install -y salt-syndic yum install -y salt-cloud