DevOps小强

GoVC是个人非常喜欢的一个VMware官方工具，其可以通过Bash脚本执行，而且命令简单，无需过多的学习成本，但执行效率却非常高，最近有客户提出，停电时如何快速关闭整个vSAN集群（包括虚拟机和主机）的需求，下面就把通过GoVC制作的脚本分享出来，以供应急时使用。

相关工具介绍

前置条件

由于GoVC需要调用vSAN执行操作，所以，此脚本，只适用于vSAN集群的vCenter部署在集群外，即有独立的管理集群运行vSAN管理的vCenter； 在关机场景下，如果vCenter在vSAN集群内，需要调整脚本，使其只用于关闭虚拟机，vCenter虚拟机和ESXi主机需要手工关闭； 在开机场景下，如果vCenter在vSAN集群内，需要调整脚本，使其只用于打开除vCenter外的虚拟机；

vCenter需要在vSAN集群外部

vCenter需要在vSAN集群外部

vCenter需要在vSAN集群外部

强烈建议，先用模拟器或测试环境进行测试，再使用。

关闭vSAN集群脚本

#!/bin/bash

# 检查govc是否安装
if ! command -v govc &> /dev/null; then
    echo "Error: govc is not installed."
    echo "Please download and install govc from https://github.com/vmware/govmomi/releases"
    exit 1
fi

# 检查jq是否安装
if ! command -v jq &> /dev/null; then
    echo "Error: jq is not installed."
    echo "Please download and install jq from https://stedolan.github.io/jq/download/"
    exit 1
fi

# 设置ESXi主机的IP地址、用户名和密码
export GOVC_URL='https://192.168.10.10/sdk'
export GOVC_USERNAME='administrator@vsphere.local'
export GOVC_PASSWORD='VMware1!'

# 设置GOVC忽略证书验证
export GOVC_INSECURE=true

# 获取所有虚拟机的列表(排除vCLS虚拟机，其会在主机进入维护模式时关闭)
uuids=$( govc find . -type m |grep -v -E 'vCLS-' | xargs -I{} govc vm.info -json "{}" | jq -r '.VirtualMachines[] | select(.Runtime.PowerState == "poweredOn") | .Config.Uuid')

for uuid in $uuids;do
  vm_name=$(govc vm.info -json -vm.uuid=$uuid | jq -r '.VirtualMachines[].Name')
  echo "The following virtual machine will powered off: $vm_name "
done

# 关闭所有虚拟机(如果虚拟机运行了VMware Tools，采用操作系统关机，否则采用强制关闭电源)
echo "Do you want to shut down all virtual machines? Enter 'yes' or 'y' to continue."
read response
if [[ "$response" == "yes" || "$response" == "y" ]]
then
  for uuid in $uuids;do
    # 获取虚拟机的VMTools状态
    tools_status=$(govc vm.info -json -vm.uuid=$uuid | jq -r '.VirtualMachines[0].Guest.ToolsStatus')
    vm_name=$(govc vm.info -json -vm.uuid=$uuid | jq -r '.VirtualMachines[].Name')
    # 根据虚拟机VMTools状态决定关机方式
    if [ "$tools_status" == "toolsOk" ]; then
        echo "Shutting down $vm_name gracefully..."
        govc vm.power -s=true -vm.uuid=$uuid
    else 
        echo "Forcefully powering off $vm_name..."
        govc vm.power -off -force -vm.uuid=$uuid
    fi
  done
else 
  echo "Operation canceled."
fi
# 确保所有虚拟机关闭完成(避免由于虚拟机未完全关闭，造成下一步进入维护模式出错)，
echo "-----------------------------"
echo "检测所有虚拟机关闭完成……  "
echo "-----------------------------"
# 每次检查间隔5秒，共等待20分钟。（如果所有虚拟机关键时间超过20分钟，请调整for循环参数）
for ((i=0;i<240;i++))
  do
    vms=$(govc find . -type m -runtime.powerState poweredOn |grep -v -E 'vCLS-')
    if [ -z "$vms" ]; then
       break
    fi
    sleep 5
done
echo "-----------------------------"
echo "   所有虚拟机关闭完成！！！  "
echo "-----------------------------"
echo "Please check that vSAN has no data synchronization (cluster->monitor->vSAN->resync components),Enter 'yes' or 'y' to continue."
read response
if [[ "$response" == "yes" || "$response" == "y" ]]
then
  # 将vSAN主机放入维护模式（关闭vSAN集群，需要先将所有主机进入到维护模式）
  hosts=$(govc find / -type h -runtime.powerState poweredOn)
  for host in $hosts
  do
    # 修改默认维护模式选项为“不迁移数据”。（避免数据迁移，造成关闭失败）
        GOVC_HOST=$(echo $host|sed 's:.*/::')
        govc host.esxcli system settings advanced set -o /VSAN/DefaultHostDecommissionMode -s noAction
    # 将主机放入维护模式
        govc host.maintenance.enter  $host
  done
else
  echo "Operation canceled."
fi
echo "------------------------------"
echo "所有主机进入维护模式完成！！！"
echo "------------------------------"

# 关闭所有ESXi主机
for host in $hosts
do
    # 关闭ESXi主机
    govc host.shutdown $host
done

# 集群关机完成消息
echo "------------------------------"
echo "所有虚拟机和主机关闭完成！！！"
echo "------------------------------"

开启vSAN集群及虚拟机脚本

#!/bin/bash

# 检查govc是否安装
if ! command -v govc &> /dev/null; then
    echo "Error: govc is not installed."
    echo "Please download and install govc from https://github.com/vmware/govmomi/releases"
    exit 1
fi

# 检查jq是否安装
if ! command -v jq &> /dev/null; then
    echo "Error: jq is not installed."
    echo "Please download and install jq from https://stedolan.github.io/jq/download/"
    exit 1
fi

# 设置ESXi主机的IP地址、用户名和密码
export GOVC_URL='https://192.168.10.10/sdk'
export GOVC_USERNAME='administrator@vsphere.local'
export GOVC_PASSWORD='VMware1!'

# 设置GOVC忽略证书验证
export GOVC_INSECURE=true

# 指定需要跳过的虚拟机列表
skipped_vms=('test02')

echo "Confirm to exit maintenance mode on all hosts,Enter 'yes' or 'y' to continue."
read response
if [[ "$response" == "yes" || "$response" == "y" ]]
then
  # 将vSAN主机退出维护模式（开启vSAN集群，需要先将所有主机退出维护模式）
  hosts=$(govc find / -type h -runtime.inMaintenanceMode true)
  if [ -z "$hosts" ]; then
     echo "------------------------------"
     echo " 所有主机已退出维护模式！！！ "
     echo "------------------------------"
  else  
     for host in $hosts
     do
        # 将主机退出维护模式
        govc host.maintenance.exit  $host
     done
     echo "------------------------------"
     echo "所有主机退出维护模式完成！！！"
     echo "------------------------------"
   fi
else
  echo "Operation canceled."
fi

# 获取所有虚拟机的列表(排除vCLS虚拟机，其会在主机退出维护模式时自动开机)
uuids=$( govc find . -type m |grep -v -E 'vCLS-' | xargs -I{} govc vm.info -json "{}" | jq -r '.VirtualMachines[] | select(.Runtime.PowerState == "poweredOff") | .Config.Uuid')
for uuid in $uuids;do
  vm_name=$(govc vm.info -json -vm.uuid=$uuid | jq -r '.VirtualMachines[].Name')
  if [[ "${skipped_vms[@]}" =~ "$vm_name" ]]; then
      echo "This virtual machine will remain powered off: $vm_name"
        continue
  else
      echo "The following virtual machine will powered on: $vm_name"
  fi
done

# 打开所有虚拟机(针对skipped_vms列表中的虚拟机，不开机)
echo "Do you want to powerOn all virtual machines? Enter 'yes' or 'y' to continue."
read response
if [[ "$response" == "yes" || "$response" == "y" ]]
then
  for uuid in $uuids
  do
    vm_name=$(govc vm.info -json -vm.uuid=$uuid | jq -r '.VirtualMachines[].Name')
    # 检查虚拟机是否需要跳过开机
    if [[ "${skipped_vms[@]}" =~ "$vm_name" ]]; then
        echo "Skipping ${vm_name}..."
        continue
    fi
    # 打开关机状态虚拟机
    echo "PoweredOn ${vm_name}..."
    govc vm.power -on -vm.uuid=$uuid
  done
else 
  echo "Operation canceled."
fi
echo "-----------------------------"
echo "   所有虚拟机开机完成！！！  "
echo "-----------------------------"

完毕

通过以上的脚本，也可以加深对GoVC的理解，以及如何在Bash中使用，当然，如果不会写脚本，也可以借助AI工具完成脚本的编写，例如：ChatGPT。