krogon / wmi_to_json

Custom PowerShell (v1) script which uses WMI Windows interface to query items and prints output in JSON format.

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wmi_to_json

Custom PowerShell (v1) script which uses WMI Windows interface to query items and prints output in JSON format.

This can be used as a discovery script for Zabbix.

Usage

wmi_discovery.ps1 <namespace> <WMI querry>

Execute from the cmd.exe

powershell.exe -NoProfile -NoLogo -File "<full path to script directory>\wmi_discovery.ps1" "Namespace" "WMI querry"

Example Usage

powershell -NoProfile -NoLogo -File "D:\krogon\wmi_discovery.ps1" "root/cimv2" "Select Name, LogFilesSizeKB, LogTruncations from Win32_PerfFormattedData_MsSqlServer_SqlServerDatabases where Name not like '%_repl%'"

Zabbix Discovery Configuration

  • Download latest release of wmi_discovery.ps1 script and place it at C:\devtools\zabbix\scripts

  • Append configuration to zabbix_agentd.userparams.conf

    EnableRemoteCommands=1
    UnsafeUserParameters=1
    UserParameter=custom.mssql_db_discover[*],powershell.exe -NoProfile -NoLogo -File "C:\devtools\zabbix\scripts\wmi_discovery.ps1" "root/cimv2" "SELECT Name FROM Win32_PerfFormattedData_MsSqlServer_SqlServerDatabases WHERE Name != '_Total' $1"
    UserParameter=custom.mssql_db_discover_custom[*],powershell.exe -NoProfile -NoLogo -File "C:\devtools\zabbix\scripts\wmi_discovery.ps1" "root/cimv2" "SELECT Name FROM Win32_PerfFormattedData_MsSql$2_MsSql$2Databases WHERE Name != '_Total' $1"
    
  • Restart Zabbix Agent service

  • Set the global macro for the template/hosts

    {$MSSQL_WQL_WHERE_GLOBAL}="AND Name!='_Total' AND Name!='master'  AND Name!='msdb' AND Name!='model' AND Name!='mssqlsystemresource' AND Name!='tempdb'"
    
  • (Optional) Set the local macro for the template/hosts (ex.)

    {$MSSQL_SQL_WHERE}="AND NOT Name like '%[_]repl'"
    

    This will exclude all DBs which ends with "_repl".

  • You may setup new discover item in Zabbix Server with the following key (unless it is already defined in template)

    custom.mssql_db_discover["{$MSSQL_WQL_WHERE_GLOBAL} {$MSSQL_WQL_WHERE}"]
    custom.mssql_db_discover_custom["{$MSSQL_WQL_WHERE_GLOBAL} {$MSSQL_WQL_WHERE}", "{$MSSQLINSTANCE}"]
    

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Custom PowerShell (v1) script which uses WMI Windows interface to query items and prints output in JSON format.


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