openstack安装报错Could not evaluate: Could not find command '/usr/bin/virsh'

在给openstack添加nova计算节点时报错：

ERROR : Error appeared during Puppet run: 192.168.1.202_compute.pp
Error: /Stage[main]/Packstack::Nova::Compute::Libvirt/Exec[virsh-net-destroy-default]: Could not evaluate: Could not find command '/usr/bin/virsh'

解决方法
nova服务器安装虚拟化平台组件

[root@nova~]#yum install -y qemu-kvm libvirt-client libvirt-daemon libvirt-daemon-driver-qemu python-setuptools