agent v0.3.8: fix crash UI notifications, auto Podman machine DNS, WordPress 7.0.0 ready template

agent/ui.go

@@ -251,9 +251,16 @@ func sendUILog(message string) {
 		"level":   "info",
 	}
 	for _, conn := range conns {
-		if err := conn.WriteJSON(msg); err != nil {
-			// Client may have disconnected; ignore.
-		}
+		func(c *websocket.Conn) {
+			defer func() {
+				if r := recover(); r != nil {
+					log.Printf("PANIC in sendUILog: %v", r)
+				}
+			}()
+			if err := c.WriteJSON(msg); err != nil {
+				// Client may have disconnected; ignore.
+			}
+		}(conn)
 	}
 }
 
@@ -278,9 +285,16 @@ func broadcastUI(msg map[string]interface{}) {
 	uiConnectionsMu.RUnlock()
 
 	for _, conn := range conns {
-		if err := conn.WriteJSON(msg); err != nil {
-			// Ignore write errors for disconnected clients.
-		}
+		func(c *websocket.Conn) {
+			defer func() {
+				if r := recover(); r != nil {
+					log.Printf("PANIC in broadcastUI: %v", r)
+				}
+			}()
+			if err := c.WriteJSON(msg); err != nil {
+				// Ignore write errors for disconnected clients.
+			}
+		}(conn)
 	}
 }
 
@@ -416,7 +430,7 @@ func uiStopInstance(dataDir, instanceID string) {
 		inst[instanceID].Status = "stopped"
 		_ = saveInstances(dataDir, inst)
 	}
-	_ = sendMessage(WSMessage{Action: "instance_stopped", InstanceID: instanceID})
+	go sendMessage(WSMessage{Action: "instance_stopped", InstanceID: instanceID})
 	notifyUI(map[string]interface{}{"action": "instances_updated"})
 }
 
@@ -427,7 +441,7 @@ func uiDeleteInstance(dataDir, instanceID string) {
 	}
 	dockerComposeRm(dataDir, instanceID)
 	removeInstance(dataDir, instanceID)
-	_ = sendMessage(WSMessage{Action: "instance_deleted", InstanceID: instanceID})
+	go sendMessage(WSMessage{Action: "instance_deleted", InstanceID: instanceID})
 	notifyUI(map[string]interface{}{"action": "instances_updated"})
 }
 
@@ -446,7 +460,7 @@ func uiResetInstance(dataDir, nodeID, instanceID string) {
 		return
 	}
 	dockerComposeRm(dataDir, instanceID)
-	handleStartInstance(dataDir, nodeID, instanceID, info.TemplateName, string(composeBytes), info.Port)
+	handleStartInstance(dataDir, nodeID, instanceID, info.TemplateName, string(composeBytes), "", info.Port)
 }
 
 // instanceContainersExist returns true if compose containers already exist for this instance.