OSDOCS#12846: custom manifest clarification

[skopacz1]

OSDOCS-12846 and OCPBUGS-51146

Version(s): 4.15+

This PR adds to the Agent docs 1. A clarification that custom manifests aren't validated and can break your cluster and 2. architecture values in an example install-config.yaml file.

QE review:

• QE has approved this change.

Previews:

[openshift-ci-robot]

@skopacz1: This pull request references OSDOCS-12846 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.19.0" version, but no target version was set.

In response to this:

OSDOCS-12846 and OCPBUGS-51146

Version(s): 4.15+

This PR adds to the Agent docs 1. A clarification that custom manifests aren't validated and can break your cluster and 2. architecture values in an example install-config.yaml file.

QE review:

• QE has approved this change.

Previews:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[openshift-ci-robot]

@skopacz1: No Jira issue is referenced in the title of this pull request.
To reference a jira issue, add 'XYZ-NNN:' to the title of this pull request and request another refresh with /jira refresh.

In response to this:

OSDOCS-12846 and OCPBUGS-51146

Version(s): 4.15+

This PR adds to the Agent docs 1. A clarification that custom manifests aren't validated and can break your cluster and 2. architecture values in an example install-config.yaml file.

QE review:

• QE has approved this change.

Previews:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[ocpdocs-previewbot]

🤖 Wed Mar 12 20:51:11 - Prow CI generated the docs preview:

https://90180--ocpdocs-pr.netlify.app/openshift-enterprise/latest/installing/installing_with_agent_based_installer/installing-with-agent-based-installer.html
https://90180--ocpdocs-pr.netlify.app/openshift-enterprise/latest/installing/installing_with_agent_based_installer/preparing-to-install-with-agent-based-installer.html

[openshift-ci]

@skopacz1: all tests passed!

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