feat: self-update of master and agents (#15) (#32)

2026-10-13 10:17:52 +00:00
parent ec28d1e027
commit 850a670446
39 changed files with 1421 additions and 130 deletions
@@ -16,8 +16,9 @@ type candidate struct {

 // Route picks the connection a job for svc goes to, among agents that speak
 // at least protocol version minProtocol. It returns model.ErrAgentOffline or
-// model.ErrAgentTooOld (model.ErrAgentTooOldForPinned when minProtocol asks
-// for a pinned ref) when there is none.
+// model.ErrAgentTooOld (model.ErrAgentTooOldForSelfUpdate when minProtocol
+// asks for self-update, model.ErrAgentTooOldForPinned when it asks for a
+// pinned ref) when there is none.
 func (h *Hub) Route(svc model.Service, minProtocol int) (model.Route, error) {
 	h.mu.Lock()
 	conns := make([]candidate, 0, len(h.conns))
@@ -65,6 +66,9 @@ func route(svc model.Service, conns []candidate, minProtocol int) (model.Route,
 		}
 	}
 	if tooOld {
+		if minProtocol >= protocol.MinSelfUpdateVersion {
+			return model.Route{}, model.ErrAgentTooOldForSelfUpdate
+		}
 		if minProtocol >= protocol.MinPinnedRefVersion {
 			return model.Route{}, model.ErrAgentTooOldForPinned
 		}