The document discusses using HAProxy agents to solve maintenance issues with Kubernetes. It describes the old architecture of having multiple ingress controllers for health checks. Teams faced difficulties with too many backends making Kubernetes hard to maintain. HAProxy did not support gRPC health checks. The solution introduced is using HAProxy agents, which offloads health checks to non-ingress processes. This allows defining health checks directly in HAProxy configuration and simplifies maintenance. A demo is provided of quickly setting up agents.