Containerized docker swarm architecture, futuristic cyberpunk background, neon lights reflecting off metallic surfaces, complex network of interconnected nodes, multiple Docker engines running in parallel, overlay networks stretching across the cluster, service discovery and load balancing, encrypted communication channels, secure key exchange, leader node orchestrating tasks, worker nodes executing commands, modern cityscape at dusk, skyscrapers looming in the background, holographic interface displaying system metrics, ambient occlusion, cinematic composition, 3D rendering.