CloudStack should support Selinux

##### ISSUE TYPE
Improvement Request

##### COMPONENT NAME
Management Server and Agent

##### CLOUDSTACK VERSION
All versions

##### OS / ENVIRONMENT
All

##### SUMMARY
Server security is key to meeting compliance requirements. Most linux distros have supported Selinux for well over a decade.

I'm putting this in for tracking purposes, as Selinux policy would need to be created to support ACS.

Issue 將 Management Server 和 Agent 列為受影響的元件，並要求在所有版本和環境中支援 SELinux。首先界定所需的 SELinux 原則及其相容性目標；Issue 未定義具體的檔案、測試或完成標準，因此這些內容需要維護者達成共識。

由索引模型根據 Issue 內容生成。