lxd/networks: try to bring up nets more aggressively at first

Signed-off-by: Simon Deziel <[email protected]>

Author: simondeziel

lxd/networks.go

@@ -1843,8 +1843,12 @@ func networkStartup(stateFunc func() *state.State, restoreOnly bool) error {
 	// periodically try to initialize them again in the background.
 	if remainingNetworksCount() > 0 {
 		go func() {
+			delay := 5 * time.Second // first delay
+			step := 5 * time.Second  // increment per iteration
+			maxDelay := time.Minute  // cap at 60s
+
 			for {
-				t := time.NewTimer(time.Duration(time.Minute))
+				t := time.NewTimer(delay)
 				s := stateFunc() // Get fresh state in case global config has been updated.
 
 				select {
@@ -1894,6 +1898,13 @@ func networkStartup(stateFunc func() *state.State, restoreOnly bool) error {
 						return // Our job here is done.
 					}
 				}
+
+				if delay < maxDelay {
+					delay += step
+					if delay > maxDelay {
+						delay = maxDelay
+					}
+				}
 			}
 		}()
 	} else {