Geo Frontend - Add "selective sync by organization" option

Problem

Geo supports selective synchronization by namespace. We should add the ability for a .com sysadmin to specify a set of organizations to replicate to a secondary site.

Proposal

This follows Geo Backend - Add "selective sync by organizati... (#514251 - closed) (MR: Geo backend: Add selective sync by org settings (!201213 - merged))

1. On the Edit Geo site page in the Geo admin page, update the Selective synchronization dropdown to show the Projects in certain organizations option.

   

2. When the Projects in certain organizations option is selected, the Organizations to synchronize dropdown appears to specify a set of organizations to include. It should behave exactly like the Groups to synchronize dropdown.

   

3. When clicking 'Save changes', these changes should be persisted in the geo_node_organization_links table.

4. Ensure that everything is behind the geo_selective_sync_by_organizations feature flag.

#514251 (comment 2326359182)

Yep this looks solid to cover configuring a site for this form of selective sync @dbalexandre. Some places we will need code changes:

• Add new supported type to the geo_helper.rb#selective_sync_types_json
• Add a new Vue file for geo-site-form-organizations this will likely be similar to the file for Groups geo_site_form_namespaces.vue
  • Depending on the overlap there may be an opportunity to generalize geo_site_form_namespaces.vue to be data-driven and handle namespace or organization lookups based on the selected dropdown item.
• Expose the new type in the parent vue component geo_site_form_selective_sync.vue

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Additionally, we will want to ensure the selective sync organizations is represented on the Geo Admin Dashboard. I believe the code is built to handle any new sync types based on the code geo_site_sync_settings.vue but we will want to verify when it is implemented.