Kubernetes cluster architecture diagram, detailed illustration, 3D visualization, bright colors, gradient shading, nodes, pods, containers, services, deployments, ReplicaSets, Persistent Volumes, StorageClasses, Ingress Controllers, Load Balancers, Certificates, Role-Based Access Control, Network Policies, DaemonSets, StatefulSets, CronJobs, Jobs, ConfigMaps, Secrets, Helm Charts, Kubectl commands, terminal windows, Linux, Ubuntu, CentOS, Docker, containers, microservices architecture, service mesh, API gateway, monitoring dashboard, Prometheus, Grafana, ELK Stack, Fluentd, alertmanager, distributed system, high availability, scalability, reliability, security.