This is a clone of TELCODOCS-964 for ACM docs

Background

• Doc impact
• What are we introducing to the customer with this epic? The ability to set kernel parameters before installing a managed cluster with ZTP
• What is the support level status of this Epic (DP, TP, full support) in this release? Full support
• What is the target release? RHACM 2.7, openshift 4.12 OCP docs

People

• SME: Ori Amizur
• QE: Vladislav Kolodny

Resources and Links

• Design doc: https://github.com/openshift/assisted-service/pull/4420/files
• InfraEnv spec: https://github.com/openshift/assisted-service/pull/4669/files#diff-2ba87ee0005a7fb9cb20a9a3557045068d8e51e358692ed2cb52cb2feca321e0R262

Release Note

• Yes

(Day 1) Install, Configure, Acceptance Test (procedures)

Note: Doc team updates the current version and the two previous versions (n-2). For earlier versions, we will address only high-priority, customer-reported issues for releases in support.

Prerequisite: Start with what we have
Always look at the current documentation to describe the change that is needed. Use the source or portal link for Step 3:

• Use the Customer Portal: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.7

• Use the GitHub link to find the staged docs in the repository: https://github.com/stolostron/rhacm-docs

Describe the changes in the doc and link to your dev story
Provide info for the following steps:

1. - [ ] Mandatory Choose the documentation release (Published releases are refreshed ~weekly after publication).

• [ ] ACM 2.4
• [ ] ACM 2.5
• [ ] ACM 2.6
• [ ] ACM 2.7
• [ ] ACM 2.8
• [ ] MCE 2.0
• [ ] MCE 2.1
• [X] MCE 2.2
• [X] MCE 2.3

2. - [ ] Mandatory Choose the type of documentation change.

• [ ] New topic in an existing section or new section
• [X] Update to an existing topic

3. - [ ] Mandatory for bugs: What is the diff? Clearly define what the problem is, what the change is, and link to the current documentation:

https://github.com/stolostron/rhacm-docs/blob/2.8_stage/clusters/cluster_lifecycle/create_infra_env.adoc

4. - [ ] Mandatory for GA content:

• [ ] Add steps and/or other important conceptual information here:

Add link to content in the OCP documentation: https://access.redhat.com/documentation/en-us/openshift_container_platform/4.12/html/scalability_and_performance/clusters-at-the-network-far-edge#setting-managed-bare-metal-host-kernel-arguments_ztp-manual-install

• [ ] Add Required access level for the user to complete the task here:

• [ ] Add verification at the end of the task, how does the user verify success (a command to run or a result to see?)

• [ ] Add link to dev story here:
  https://issues.redhat.com/browse/TELCODOCS-964