KSPM Documentation updates for 8.5

[tinnytintin10]

Background

The KSPM capability is going GA in 8.5. We need to make sure the documentation we have for it is up to date, clear and helpful for users who will use this capability in production. This issue will track the work from the docs team and product to deliver the documentation needed.

Rough Structure for Cloud Native Security section

• Cloud Native Security
  • Kubernetes Security Posture Management
    • Getting started with KSPM
    • Cloud Posture Dashboard
    • Findings Page
    • Benchmark Rules

Action Items

• @tinnytintin10 to provide updates to the "what is KSPM" overview
• @tinnytintin10 to provide a rough draft of a getting started section for KSPM
  • One set of instructions for unmanaged/vanilla clusters
  • One set of instructions for EKS clusters
• @tinnytintin10 to provide up-to-date screenshots for findings, dashboard, and benchmark rules page
• @benironside to re-org the cloud-native security section according to the above structure

related task:

#2539

[tinnytintin10]

@benironside I have started working on this google doc to capture some of the updates I think we can make.

Text in Heading 1 represents standalone pages. Text in Heading 2 represent sections within pages. I am aligning this to the rough structure we came up with in the body of the issue above:

• Cloud Native Security
  • Kubernetes Security Posture Management
    • Getting started with KSPM
    • Cloud Posture Dashboard
    • Findings Page
    • Benchmark Rules

[tinnytintin10]

Update: Screenshots and custom content has been provided - this will be reviewed, organized, and published by ben.

[tinnytintin10]

We'll need to update the docs with a new troubleshooting and support matrix section.

[tinnytintin10]

Completed. See https://www.elastic.co/guide/en/security/current/kspm.html