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hive-c0re re-converges wanted state whenever its watch attaches

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pull waits (bounded) for the swarm queue connection instead of failing at boot while the client is still connecting. The watch runs one pull after every attach, including re-attaches, and a failed attach or ended stream is retried with a bounded backoff instead of waiting for the next boot. A first deploy is not queued again while one for the agent is queued or running.

An agent whose first deploy was lost to a c0re restart is now deployed on the next boot, or the next watch re-attach, without anyone re-declaring it.
This commit is contained in:
atlas 2026-10-20 21:43:22 +02:00 • committed by mara
commit 784507f554
5 changed files with 395 additions and 70 deletions
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15
hive-c0re/src/swarm_status.rs
View file

@ -322,14 +322,18 @@ async fn handle_deploy_request(
coord
.job_queue
.insert_job(|b| crate::job_queue::templates::rebuild(b, &agent, true))
.map(Some)
} else {
queue_first_deploy(coord, &agent)
};
match inserted {
Ok(_) => {
Ok(Some(_)) => {
tracing::info!(%agent, known, "swarm events: deploy requested by the swarm, queued");
coord.emit_rebuild_queue_snapshot();
}
Ok(None) => {
tracing::info!(%agent, "swarm events: first deploy already queued; not queueing another");
}
Err(e) => tracing::warn!(%agent, error = %e, "swarm events: queueing the deploy failed"),
}
}
@ -377,16 +381,17 @@ async fn apply_rev(agent: &str, rev: &str) -> bool {
/// Setting the row up front closes that window. A second caller open-coding
/// the insert would lose exactly that, and the agent would come up stopped for
/// no visible reason.
///
/// `Ok(None)` when a first deploy for the agent is already queued or running:
/// the pull, the watch and the deploy event can all see the same declaration.
pub(crate) fn queue_first_deploy(
coord: &std::sync::Arc<crate::coordinator::Coordinator>,
agent: &str,
) -> Result<Vec<hive_jobq::NodeId>> {
) -> Result<Option<Vec<hive_jobq::NodeId>>> {
if let Err(e) = coord.power.set(agent, crate::power::Wanted::Up) {
tracing::warn!(%agent, error = ?e, "agent_power: seed on swarm first-deploy failed");
}
coord
.job_queue
.insert_job(|b| crate::job_queue::templates::first_deploy(b, agent))
coord.job_queue.insert_first_deploy_once(agent)
}
/// Offer one snapshot: this hive's current readiness, under its own key.