docs: document ingest storage jsonnet setup

[narqo]

What this PR does

Following #12411 #12624, etc

Here I'm adding a new documentation piece, that outlines the setup process of running a new Mimir cluster under the ingest storage architecture with Jsonnet.

[github-actions]

💻 Deploy preview deleted.

[Copilot]

Pull Request Overview

This PR adds comprehensive documentation for configuring Grafana Mimir's ingest storage architecture using Jsonnet, following recent PRs that implemented this functionality.

• Introduces a new documentation file explaining how to enable and configure ingest storage
• Provides Jsonnet configuration examples for basic setup and Kafka customization
• Includes important warnings about migration considerations and requirements

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[dimitarvdimitrov]

do you want to mention the alerts and dashboard toggles in the mixin that they can use for ingest storage?

this looks good, but I think a helm guide will be much more useful

[tacole02]

This looks really good. Thanks so much for working on all of these setup topics, @narqo !

[narqo]

@dimitarvdimitrov

do you want to mention the alerts and dashboard toggles in the mixin that they can use for ingest storage?

Do you refer to any particular dashboards? I don't think tuning the mixins should be here — there is a dedicated section of the site about "Monitor Grafana Mimir", that talks about how to install the mixin, what dashboards are there, etc. I don't see any existing documents under the "Deploy with Jsonnet and Tanka" mention the mixins.

[narqo]

I think a helm guide will be much more useful

Helm guide is a separate subsection on the site. It was already updated with basic details about the ingest storage.

[tacole02]

Do you refer to any particular dashboards? I don't think tuning the mixins should be here — there is a dedicated section of the site about "Monitor Grafana Mimir", that talks about how to install the mixin, what dashboards are there, etc. I don't see any existing documents under the "Deploy with Jsonnet and Tanka" mention the mixins.

I agree that this information shouldn't be here. @dimitarvdimitrov are there any architecture-specific considerations in the mixin? If so, we should probably call that out in Monitor Grafana Mimir.

[dimitarvdimitrov]

architecture-specific considerations in the mixin

i think the only config would be these two toggles

mimir/operations/mimir-mixin/config.libsonnet

Lines 736 to 737 in ca58d6a

	// Show panels that use queries for "ingest storage" ingestion (distributor -> Kafka, Kafka -> ingesters)
	show_ingest_storage_panels: false,

mimir/operations/mimir-mixin/config.libsonnet

Lines 207 to 208 in ca58d6a

	// Whether alerts for experimental ingest storage are enabled.
	ingest_storage_enabled: true,