VMware环境中根据虚拟机IP找寻所在ESXi主机 2020-03-01 虚拟化 暂无评论 3058 次阅读 在VMware vSphere虚拟环境中我们有时需要找寻某IP所在的虚拟机及ESXi宿主机。若VMware虚拟机安装了VMware tools, 则可以通过API直接查找该IP所在位置,但我们的环境中并不是所有的虚拟机都已安装,因而我们只能通过MAC地址来查找。 假设目标IP为10.95.48.11,首先我们从与目标IP位于相同二层网络内的虚拟机上获取10.95.48.11对应的MAC地址: ``` [root@localhost ~]# ping 10.95.48.11 -c 2 PING 10.95.48.11 (10.95.48.11) 56(84) bytes of data. 64 bytes from 10.95.48.11: icmp_seq=1 ttl=64 time=0.141 ms 64 bytes from 10.95.48.11: icmp_seq=2 ttl=64 time=0.137 ms --- 10.95.48.11 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min/avg/max/mdev = 0.137/0.139/0.141/0.002 ms [root@localhost ~]# ip neighbor |grep 10.95.48.11 10.95.48.11 dev eth0 lladdr 00:0c:29:26:18:c8 REACHABLE ``` 获取到MAC地址为 ``` 00:0c:29:26:18:c8 ``` 若是环境中ESXi主机较少,可以通过SSH直接登录ESXi主机挨个进行查找。 首先进入虚拟机的存储目录,不同环境中数据存储的名字可能不同: ``` cd /vmfs/volumes/datastore1/ ``` 该目录存储的是各个虚拟机的相关文件,一个虚拟机对应一个目录,如: ``` [root@esxi-01:/vmfs/volumes/595b7497-d8849df8-8d7c-6c92bf585d10] ls -l total 176 drwxr-xr-x 1 root root 420 Sep 14 02:30 centos-68 drwxr-xr-x 1 root root 1820 Oct 9 09:55 dev01-10.95.48.11 drwxr-xr-x 1 root root 3080 Sep 14 03:37 dev02-10.95.48.12 ``` 每台虚拟机目录中的vmx文件中存储了系统为虚拟网卡生成的MAC地址,如: ``` ethernet0.generatedAddress = "00:0c:29:26:18:c8" ethernet0.generatedAddressOffset = "0" ``` 我们可以从vmx文件中搜索MAC地址,找到相应的虚拟机,如: ``` [root@esxi-01:/vmfs/volumes/595b7497-d8849df8-8d7c-6c92bf585d10] find . -name '*.vmx' | xargs grep '00:0c:29:26:18:c8' ./dev01-10.95.48.11/dev01-10.95.48.11.vmx:ethernet0.generatedAddress = "00:0c:29:26:18:c8” ``` 若是环境中ESXi主机非常多,一台一台搜索非常低效,我们可以基于VMware官方提供的SDK来编写程序来找到相应的MAC地址。 VMware提供了Python的SDK: https://github.com/vmware/pyvmomi 我们编写的程序如下: ``` #!/usr/bin/env python import atexit from pyVim import connect from pyVmomi import vmodl from pyVmomi import vim def print_vm_info(virtual_machine): for device in virtual_machine.config.hardware.device: if (device.key >= 4000) and (device.key < 5000): if device.macAddress == '00:0c:29:26:18:c8': print('device.macAddress==', device.macAddress) summary = virtual_machine.summary print("Name : ", summary.config.name) print("Template : ", summary.config.template) print("Path : ", summary.config.vmPathName) print("Guest : ", summary.config.guestFullName) print("Host : ", summary.runtime.host.name) def main(): try: service_instance = connect.SmartConnect(host="10.10.10.10", user="administrator@vsphere.local", pwd="123456", port=443) atexit.register(connect.Disconnect, service_instance) content = service_instance.RetrieveContent() container = content.rootFolder # starting point to look into viewType = [vim.VirtualMachine] # object types to look for recursive = True # whether we should look into it recursively containerView = content.viewManager.CreateContainerView( container, viewType, recursive) children = containerView.view for child in children: print_vm_info(child) except vmodl.MethodFault as error: print("Caught vmodl fault : " + error.msg) return -1 return 0 # Start program if __name__ == "__main__": main() ``` 虚拟机的设备key值位于4000-5000表示网络设备,我们在网络设备的属性中查找MAC信息。程序中的连接信息可以是ESXi主机信息,也可以是vCenter信息。直接连接vCenter则可以将环境中所有ESXi主机全部搜索完, 避免一台一台主机搜索。 程序的执行结果,如下: ``` [root@vagrant-centos65 samples]# python get_vm_from_mac.py ('device.macAddress==', '00:0c:29:26:18:c8') ('Name : ', 'dev01-10.95.48.11') ('Template : ', False) ('Path : ', '[datastore1] dev01-10.95.48.11/dev01-10.95.48.11.vmx') ('Guest : ', 'CentOS 4/5/6/7 (64-bit)') ('Host : ', ‘esxi-01’) ``` 转自http://www.just4coding.com/2017/10/12/vmware-find-mac/ 标签: vmware, MAC, ip 本作品采用 知识共享署名-相同方式共享 4.0 国际许可协议 进行许可。