Gateway layer performance is limited : The customer's business application runs in the container, using the Nginx based kubernetes Ingress gateway. As the gateway and service are deployed in the same cluster, the gateway layer has limited capacity for horizontal expansion and contraction in the face of burst traffic, resulting in limited performance. In addition, when a large number of users initiate HTTPS requests, they need to perform a large number of TLS encryption and decryption operations, which puts great pressure on the server CPU. When the performance cannot be carried, the stability of the business system will be affected.
High complexity of gateway link operation and maintenance : The customer's north-south gateway and east-west gateway are independently deployed, operated and maintained. There are many jumps in the entire access link from the gateway layer to the back-end services, which increases the difficulty of troubleshooting online problems and leads to high complexity of operation and maintenance of the gateway link.