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refactor(#2862): one snapshot store per swarm, not one per peer

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The push side modelled a store per peer hive: a --peer argument, a
swarm.peers.<domain>.snapshotStorePort option, and a swarm_peers module
whose entire job was answering "which peer". A swarm has exactly one
store, so none of that had anything to select between.

The receiver already proved it. It keys destination directories by
agent, not by sending hive, precisely so an agent that migrates keeps
one unbroken incremental chain -- which only makes sense if every hive
pushes to the same place. Per-hive stores would split the chain in two,
the case that keying exists to prevent.

So the destination moves to services.hyperhive.swarm.snapshotStore,
rendered into HYPERHIVE_SNAPSHOT_STORE, and swarm_peers is deleted
rather than adapted. address has no default because it is a
deployment fact this host cannot derive; port defaults because it is a
convention both ends read from the same option docs. An unset or empty
address fails naming the option instead of connecting somewhere
arbitrary, and a test asserts the message suggests no value.
This commit is contained in:
atlas 2026-07-31 22:00:59 +02:00 • committed by mara
commit ba71e45486
9 changed files with 171 additions and 279 deletions
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10
hive-c0re/src/server.rs
View file

@ -268,8 +268,7 @@ async fn dispatch(req: &HostRequest, coord: Arc<Coordinator>) -> HostResponse {
name,
label,
parent,
peer,
} => handle_push_snapshot(name.as_str(), label, parent.as_deref(), peer).await?,
} => handle_push_snapshot(name.as_str(), label, parent.as_deref()).await?,
})
}
.await;
@ -667,18 +666,17 @@ async fn handle_send_snapshot(
Ok(HostResponse::messages(vec![path]))
}
/// Push a snapshot to a peer hive's store. The network sibling of
/// Push a snapshot to the swarm's store. The network sibling of
/// [`handle_send_snapshot`]: nothing lands on this host, so success is
/// bare rather than a path.
async fn handle_push_snapshot(
name: &str,
label: &str,
parent: Option<&str>,
peer: &str,
) -> Result<HostResponse> {
crate::snapshot_push::push_agent_snapshot(name, label, parent, peer)
crate::snapshot_push::push_agent_snapshot(name, label, parent)
.await
.with_context(|| format!("push {name} snapshot (label {label:?}) to peer {peer:?}"))?;
.with_context(|| format!("push {name} snapshot (label {label:?}) to the swarm store"))?;
Ok(HostResponse::success())
}