通過PowerShell命令給Azure VM新增CustomScriptExtension

衡子發表於2016-09-11

Azure的VM提供了一種管理工具叫Azure VM Extension。它實現了一些管理虛擬機器所需要的重要功能，比如：重設密碼、設定RDP引數、以及許多其他關鍵的功能，並且Azure VM一直在新增新的Extension。預設情況下，建立的Windows VM會安裝以下幾個基本的VM Extension，包括IaaSDiagnostics，VMAccess和BGInfo。Linux的VM，如果開啟Diagnostics功能，預設會安裝LinuxDiagnostic的Extension。

通過Azure CLI可以獲得Azure在某個區域提供的的Extension和相關資訊。可以通過如下命令：

azure vm extension-image list

本文將介紹，通過PowerShell命令，給Azure的Linux VM新增CustomerScriptForLinux的Extension。

1 準備Azure VM

Azure VM在新增Extension時，必須是執行狀態，同時，其Windows Azure Agent必須已經安裝。可以通過如下命令檢視是否有WAagent程式在執行：

[root@hwiscsi02 waagent]# ps -ef | grep "waagent -daemon" | grep -v grep

root 935 1 0 08:29 ? 00:00:01 python /usr/sbin/waagent -daemon

 2 準備PowerShell環境

//登陸Azure China
$mycred = Get-Credential -UserName admin@weiheng.partner.onmschina.cn -Message hello
Login-AzureRmAccount -EnvironmentName AzureChinaCloud -Credential $mycred

//定義Resource Group、VM和Location變數
$RGName = 'hwiscsi'
$VmName = 'hwiscsi02'
$Location = 'China East'

//定義Extension相關資訊
$ExtensionName = 'CustomScriptForLinux'
$Publisher = 'Microsoft.OSTCExtensions'
$version = '1.5'

$PublicConf = '{"fileUris":["https://hwarm.blob.core.chinacloudapi.cn/soft/extension.sh"], "commandToExecute": "sh extension.sh" }' 
$PrivateConf = '{
　　"storageAccountName": "hwarm",
　　"storageAccountKey": "xxxxxxxx=="
}'

//執行Set-AzureRmVMExtension命令，安裝extension：
Set-AzureRmVMExtension -ResourceGroupName $RGName -VMName $VmName -Location $Location `
　　-Name $ExtensionName -Publisher $Publisher `
　　-ExtensionType $ExtensionName -TypeHandlerVersion $Version `
　　-Settingstring $PublicConf -ProtectedSettingString $PrivateConf

執行完後，螢幕輸出如下：

執行成功。

或者採用Azure CLI命令：

azure vm extension set hwiscsi hwiscsi02 CustomScriptForLinux Microsoft.OSTCExtensions  1.5 -i '{"fileUris":["https://hwarm.blob.core.chinacloudapi.cn/soft/extension.sh"], "commandToExecute": "sh extension.sh"}'

info:    Executing command vm extension set
+ Looking up the VM "hwiscsi02                                                  
+ Installing extension "CustomScriptForLinux", VM: "hwiscsi"                   
info:    vm extension set command OK

3 檢查VM內的資訊

在VM中，可以在/var/log/azure/Microsoft.OSTCExtensions.CustomScriptForLinux/1.5.2.0檢視相關的日誌。

2016/09/11 14:27:04 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]sequence number is 0
2016/09/11 14:27:04 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]setting file path is/var/lib/waagent/Microsoft.OSTCExtensions.CustomScriptForLinux-1.5.2.0/config/0.settings
2016/09/11 14:27:04 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]JSON config: {
2016/09/11 14:27:04   "runtimeSettings": [
2016/09/11 14:27:04     {
2016/09/11 14:27:04       "handlerSettings": {
2016/09/11 14:27:04         "publicSettings": {"fileUris":["https://hwarm.blob.core.chinacloudapi.cn/soft/extension.sh"],"commandToExecute":"sh extension.sh"}
2016/09/11 14:27:04       }
2016/09/11 14:27:04     }
2016/09/11 14:27:04   ]
2016/09/11 14:27:04 }
2016/09/11 14:27:04 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Install,success,0,Install succeeded
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]sequence number is 0
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]setting file path is/var/lib/waagent/Microsoft.OSTCExtensions.CustomScriptForLinux-1.5.2.0/config/0.settings
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]JSON config: {
2016/09/11 14:27:09   "runtimeSettings": [
2016/09/11 14:27:09     {
2016/09/11 14:27:09       "handlerSettings": {
2016/09/11 14:27:09         "publicSettings": {"fileUris":["https://hwarm.blob.core.chinacloudapi.cn/soft/extension.sh"],"commandToExecute":"sh extension.sh"}
2016/09/11 14:27:09       }
2016/09/11 14:27:09     }
2016/09/11 14:27:09   ]
2016/09/11 14:27:09 }
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]set most recent sequence number to 0
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Command to execute:sh extension.sh
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Enable,transitioning,0,Launching the script...
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]sequence number is 0
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]setting file path is/var/lib/waagent/Microsoft.OSTCExtensions.CustomScriptForLinux-1.5.2.0/config/0.settings
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]JSON config: {
2016/09/11 14:27:09   "runtimeSettings": [
2016/09/11 14:27:09     {
2016/09/11 14:27:09       "handlerSettings": {
2016/09/11 14:27:09         "publicSettings": {"fileUris":["https://hwarm.blob.core.chinacloudapi.cn/soft/extension.sh"],"commandToExecute":"sh extension.sh"}
2016/09/11 14:27:09       }
2016/09/11 14:27:09     }
2016/09/11 14:27:09   ]
2016/09/11 14:27:09 }
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Will try to download files, number of retries = 10, wait SECONDS between retrievals = 20s
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Command to execute:sh extension.sh
2016/09/11 14:27:09 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Downloading,transitioning,0,Downloading files...
2016/09/11 14:27:10 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]No azure storage account and key specified in protected settings. Downloading scripts from external links...
2016/09/11 14:27:10 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Converting /var/lib/waagent/Microsoft.OSTCExtensions.CustomScriptForLinux-1.5.2.0/download/0/extension.sh from DOS to Unix formats: Done
2016/09/11 14:27:10 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Removing BOM of /var/lib/waagent/Microsoft.OSTCExtensions.CustomScriptForLinux-1.5.2.0/download/0/extension.sh: Done
2016/09/11 14:27:10 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Succeeded to download files, retry count = 0
2016/09/11 14:27:10 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Internal DNS is ready, retry count = 0
2016/09/11 14:27:10 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Command to execute:sh extension.sh
2016/09/11 14:27:11 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Command is finished.
2016/09/11 14:27:11 ---stdout---
2016/09/11 14:27:11 
2016/09/11 14:27:11 ---errout---
2016/09/11 14:27:11 
2016/09/11 14:27:11 
2016/09/11 14:27:11 [Microsoft.OSTCExtensions.CustomScriptForLinux-1.0]Daemon,success,0,Command is finished.
2016/09/11 14:27:11 ---stdout---

指令碼執行成功。

 

 

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