Broadcast initial ring after persisting it, in case we die between those operations

ipam/allocator.go

@@ -650,8 +650,8 @@ func (alloc *Allocator) establishRing() {
 func (alloc *Allocator) createRing(peers []mesh.PeerName) {
 	alloc.debugln("Paxos consensus:", peers)
 	alloc.ring.ClaimForPeers(normalizeConsensus(peers))
-	alloc.gossip.GossipBroadcast(alloc.Gossip())
 	alloc.ringUpdated()
+	alloc.gossip.GossipBroadcast(alloc.Gossip())
 }
 
 func (alloc *Allocator) ringUpdated() {

ipam/allocator_test.go

@@ -176,6 +176,7 @@ func TestAllocatorClaim(t *testing.T) {
 	alloc.Prime()
 	// Do an allocate on the other peer, which we will try to claim later
 	addrx, err := allocs[0].Allocate(container1, subnet, true, returnFalse)
+	router.Flush()
 
 	// Now try the claim again
 	err = alloc.Claim(container3, addr1, true, true)