过去2年开始微软一直在沸沸扬扬地宣传PowerShell core，可以允许Windows的管理员在Linux/OSX 平台执行Powershell的管理命令。很多第三方的厂商也纷纷推出了自己的管理模块。不过对比起Windows下面的Powershell，Powershell core现在支持的模块实在太少，存在的bug也很多，所以之前豆子稍微试试发现不靠谱就没继续了。

前两天发现用新版本的PowerShell core 和 Vmware core模块了，下载试试看，发现之前的一些bug已经修复，安装也容易了很多，安装库里面都已经准备好了，不需要像之前的版本去编译。

登录CentOS 7, 直接执行yum就可以安装最新版本的Powershell core了

 [root@sydnagios psl-omi-provider]# yum install powershell
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: centos.mirror.serversaustralia.com.au
 * epel: mirror.nsw.coloau.com.au
 * extras: centos.mirror.serversaustralia.com.au
 * updates: centos.mirror.serversaustralia.com.au
Package powershell-6.1.0~preview.1-1.rhel.7.x86_64 already installed and latest version
Nothing to do

然后执行 pwsh就可以打开powershell core的控制台


[root@sydnagios psl-omi-provider]# pwsh
PowerShell v6.1.0-preview.1
Copyright (c) Microsoft Corporation. All rights reserved.

https://aka.ms/pscore6-docs
Type 'help' to get help.

PS /tmp/psl-omi-provider> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      6.1.0-preview.1
PSEdition                      Core
GitCommitId                    v6.1.0-preview.1
OS                             Linux 3.10.0-514.10.2.el7.x86_64 #1 SMP Fri Mar 3 00:04:05 UTC 2017
Platform                       Unix
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

然后在Powershell core的控制台下直接安装Vmware PowerCli core就行了

PS /tmp/psl-omi-provider> Install-Module -Name Vmware.PowerCli

安装完毕之后确认一下 就可以执行相关命令了


PS /tmp/psl-omi-provider> Connect-VIServer sydvcs2012
WARNING: Please consider joining the VMware Customer Experience Improvement Program, so you can help us make PowerCLI a better product. You can join using the following command:

Set-PowerCLIConfiguration -Scope User -ParticipateInCEIP $true

VMware's Customer Experience Improvement Program ("CEIP") provides VMware with information that enables VMware to improve its products and services, to fix problems, and to advise you on how best to deploy and use our products.  As part of the CEIP, VMware collects technical information about your organization�s use of VMware products and services on a regular basis in association with your organization�s VMware license key(s).  This information does not personally identify any individual.

For more details: type "help about_ceip" to see the related help article.

测试一下命令，输出某个主机当前的内存状态，成功

PS /tmp/psl-omi-provider> get-vmhost sydesx5.omnicom.com.au | get-stat -Realtime -MaxSamples 1 -memory                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    MetricId                Timestamp                          Value Unit     Instance                                                                                                                                                                                                                                           --------                ---------                          ----- ----     --------                                                                                                                                                                                                                                           mem.usage.average       9/04/18 1:57:40 pm                 52.15 %
mem.active.average      9/04/18 1:57:40 pm               6190728 KB
mem.vmmemctl.average    9/04/18 1:57:40 pm                     0 KB
mem.granted.average     9/04/18 1:57:40 pm              75877672 KB