Move Excluding resources section to Migration controller options

[arpitbhagat]

Summary

• Move the "Excluding resources" module (migration-excluding-resources.adoc) from the "Migration plan options" section to the "Migration controller options" section in both MTC assembly files
• Update the "Migration controller options" intro text to mention resource exclusion

Problem

The "Excluding resources" section is currently placed under "Migration plan options", which opens with:

"You can exclude, edit, and map components in the MigPlan custom resource (CR)."

However, this section exclusively documents MigrationController CR parameters (additional_excluded_resources, disable_image_migration, disable_pv_migration). The YAML example shows kind: MigrationController, and the procedure instructs users to oc edit migrationcontroller.

This placement misleads users into believing these are MigPlan fields. When users run oc explain migplan.spec, the fields are not found because they belong to the MigrationController CR.

Fix

Moved the include::modules/migration-excluding-resources.adoc from the "Migration plan options" section to the "Migration controller options" section in both assembly files:

• migration_toolkit_for_containers/advanced-migration-options-mtc.adoc
• migrating_from_ocp_3_to_4/advanced-migration-options-3-4.adoc

Updated the "Migration controller options" intro text to include "exclude resources" alongside the other capabilities.

Before (section structure)

Migration plan options (MigPlan CR)	Migration controller options (MigrationController CR)
Excluding resources (wrong - documents MigrationController CR)	Increasing limits
Mapping namespaces	PV resizing
Excluding PVCs	Cached clients

After (section structure)

Migration plan options (MigPlan CR)	Migration controller options (MigrationController CR)
Mapping namespaces	Excluding resources (moved here)
Excluding PVCs	Increasing limits
...	PV resizing
	Cached clients

Verification

• Cross-references to #migration-excluding-resources_{context} remain valid since the module is still included in the same assembly files
• Confirmed on MTC 1.8.15 / OCP 4.20: oc explain migplan.spec does not contain additional_excluded_resources — it is a MigrationController CR field
• The module content (migration-excluding-resources.adoc) is unchanged — only its placement in the assembly files is corrected

Test plan

• Verify rendered docs show "Excluding resources" under "Migration controller options" instead of "Migration plan options"
• Verify cross-reference from premigration-checklists-3-4.adoc still resolves correctly
• Verify no broken links in either assembly

[openshift-ci]

Hi @arpitbhagat. Thanks for your PR.

I'm waiting for a openshift member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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Details

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