nodes:
   - name: node1
     tags: control      #optional param, other valid value "compute"
     arch: "x86_64"
     mac_address: "74:4A:A4:00:CF:DC" #pxe boot interface mac
     power:
       type: ipmi
       address: 192.168.1.101
       user: zteroot
       pass: superuser
   - name: node2
     tags: control
     arch: "x86_64"
     mac_address: "74:4A:A4:00:CE:CE"
     power:
       type: ipmi
       address: 192.168.1.102
       user: zteroot
       pass: superuser
   - name: node3
     tags: control
     arch: "x86_64"
     mac_address: "74:4A:A4:00:CF:58"
     power:
       type: ipmi
       address: 192.168.1.103
       user: zteroot
       pass: superuser
   - name: node4
     tags: compute
     arch: "x86_64"
     mac_address: "74:4A:A4:00:49:84"
     power:
       type: ipmi
       address: 192.168.1.104
       user: zteroot
       pass: superuser
   - name: node5
     tags: compute
     arch: "x86_64"
     mac_address: "74:4A:A4:00:CE:C2"
     power:
       type: ipmi
       address: 192.168.1.105
       user: zteroot
       pass: superuser