[MERGE AFTER 2.12 PUBLISH] [2.11_stage] Add containerArguments docs to Gatekeeper

[dhaiducek]

• Add containerArguments docs to Gatekeeper

ref: https://issues.redhat.com/browse/ACM-14700

Cherry-pick:

• Add containerArguments docs to Gatekeeper #7011

[openshift-ci]

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[dhaiducek]

@jc-berger @dockerymick Not sure when 2.11 will be refreshed, but this PR shouldn't merge until Gatekeeper 3.17 is released. If the refresh doesn't happen until next Friday or something, then I think this can merge? Otherwise we should probably wait a bit.

[dockerymick]

@dhaiducek will you remind us of the release date for Gatekeeper 3.17. We expect to refresh today

[dhaiducek]

Okay, I'll set a reminder for myself to come back around to this. The Gatekeeper 3.17 GA is aligned with ACM 2.12, so I think next Tuesday (assuming it doesn't slip)?

[dockerymick]

To help reduce the PRs for pencils down and to avoid merge conflicts, I recommend that we create an issue for this update. After the issue is created and we add this PR to it as a reference, we can close the PR and reopen another after 2.12 GA @dhaiducek

[dockerymick]

Here is the link to the new issue: https://issues.redhat.com/browse/ACM-15321
Closing this PR

[dhaiducek]

we can close the PR and reopen another after 2.12 GA @dhaiducek

Since the Gatekeeper files aren't updated much except by us, we ought to be able to re-open this PR when it's ready to be addressed (that ought to be simpler than creating another PR 🙂 )

[dhaiducek]

The CI notes a broken link, but it's unrelated to this PR and where the content migrated to is also unclear, so I think this PR should be okay to merge at any time now that Gatekeeper (somewhat unexpectedly) went GA yesterday:

rhacm-docs/clusters/hosted_control_planes/add_agents_ibmz.adoc

Line 163 in 22ff340

. Transfer the `initrd`, `kernel`, `generic.ins`, and `initrd.img.addrsize` parameter files to the file server. For more information about how to transfer the files with FTP and boot, see link:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/performing_a_standard_rhel_8_installation/installing-in-an-lpar_installing-rhel[Installing in an LPAR].

[dockerymick]

@dhaiducek when i copied and pasted the link it directed me here: https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/#Installing%20RHEL

I think it's fine to leave as is

[dockerymick]

Approved