doc: prevent indexing of integrated docs

[elijahgreenstein]

• Updates add_config.py to add seo_noindex context to the LXD, MicroCeph, and MicroOVN docs.
• Sets up base.html file to add to the cloned MicroCeph docs
• Sets up extrahead block to append to the cloned MicroOVN docs

Note that the LXD upstream docs already have a check for seo_noindex, so setting html['seo_noindex'] = True is sufficient to add the noindex tags.

Documentation on the extrahead block and super() is available here: https://www.sphinx-doc.org/en/master/development/html_themes/templating.html.

For comparison, noindex tags were added to the older LXD docs versions in canonical/lxd#17984.

[Copilot]

Pull request overview

Updates the documentation integration workflow to add noindex meta tags to integrated upstream docs (LXD, MicroCeph, MicroOVN) so search engines don’t index the embedded copies within MicroCloud’s documentation site.

Changes:

• Set html_context['seo_noindex'] = True for integrated builds across LXD, MicroCeph, and MicroOVN via the integration config snippet.
• Add a MicroCeph base.html override that injects a <meta name="robots" content="noindex"> when seo_noindex is enabled.
• Append an extrahead block to MicroOVN’s base template to conditionally inject the same noindex meta tag.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
doc/Makefile	Adds integration steps to install template overrides/injections for MicroCeph and MicroOVN noindex behavior.
doc/.sphinx/_integration/microovn-extrahead.html	New Jinja snippet to inject noindex in MicroOVN docs via extrahead.
doc/.sphinx/_integration/microceph-base.html	New base.html override for MicroCeph that injects noindex in extrahead.
doc/.sphinx/_integration/add_config.py	Sets seo_noindex in html_context for integrated builds of LXD/MicroCeph/MicroOVN.

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[elijahgreenstein]

I don't think this should be an issue for our build workflow, since the integrate target is only run once when building the documentation.

[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

Suppressed comments (1)

doc/Makefile:118

• cat ... >> integration/microovn/docs/.sphinx/_templates/base.html will silently create base.html if it doesn't exist, which can mask upstream template changes and lead to a broken/partial template without failing the integration step. It’s safer to assert the file exists (and optionally ensure a newline before appending) so the build fails loudly if the expected base template is missing.

	# Set up `noindex` tags for MicroCeph and MicroOVN pages
	cp .sphinx/_integration/microceph-base.html integration/microceph/docs/_templates/base.html
	cat .sphinx/_integration/microovn-extrahead.html >> integration/microovn/docs/.sphinx/_templates/base.html

[elijahgreenstein]

With regard to the Copilot comment above about upstream template changes and appending the extrahead block with >>: I've been setting up some integration prechecks that, among other things, address this concern. I've opened up a separate PR with these checks: #1480.