Manually Configuring Zones in a Global-Writes Atlas cluster

MongoDB Atlas
1

Hello,

I am deploying a Global-Writes (Geo-Sharding) Cluster in Atlas, with Self-Managed Sharding.
I noticed that when listing the shards, the shards have no tags. For examples,

> db.adminCommand({ listShards: 1 }).shards[0]
< {
  _id: 'atlas-<hidden>-shard-0',
  host: '<hidden>',
  state: 1,
  topologyTime: Timestamp({ t: 1733546527, i: 9 }),
  replSetConfigVersion: Long('1')
}

Although the deployment was done via Terraform (and the MongoDB Atlas provider), the resource does not expose the shard IDs.

I have checked the API (Get Single Cluster). The API does not show shard IDs.

However, in the Atlas UI, I see the shard ID and the zone name I selected.

Is there a programmatic way to determine which shard ID belongs to which cloud region it was deployed to, so we can configure the zones ourselves?

2

You should be able to tag the shards to zone tags just as you should be able to tag the shard key ranges to zone tags: both are self-managed in this mode