integration: rework retry for waiting for node sync

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

integration/integrationutil/util.go

@@ -14,11 +14,27 @@ import (
 	"path/filepath"
 	"time"
 
+	"github.com/juanfont/headscale/hscontrol/types"
+	"github.com/juanfont/headscale/hscontrol/util"
 	"github.com/juanfont/headscale/integration/dockertestutil"
 	"github.com/ory/dockertest/v3"
 	"github.com/ory/dockertest/v3/docker"
 )
 
+// PeerSyncTimeout returns the timeout for peer synchronization based on environment:
+// 60s for dev, 120s for CI.
+func PeerSyncTimeout() time.Duration {
+	if util.IsCI() {
+		return 120 * time.Second
+	}
+	return 60 * time.Second
+}
+
+// PeerSyncRetryInterval returns the retry interval for peer synchronization checks.
+func PeerSyncRetryInterval() time.Duration {
+	return 100 * time.Millisecond
+}
+
 func WriteFileToContainer(
 	pool *dockertest.Pool,
 	container *dockertest.Resource,