Explain Docker in production: monitoring, scaling, and maintenance.

Docker production management strategies: 1) Monitoring stack: Prometheus for metrics collection, Grafana for visualization, cAdvisor for container metrics with volumes mounted for system access, 2) Auto-scaling with Docker Swarm: docker service create with resource limits, Manual scaling with docker service scale, Auto-scaling script monitoring CPU usage and scaling replicas, 3) Health monitoring: Script checking service replicas vs running instances, Send alerts for unhealthy services, 4) Maintenance procedures: Rolling updates (docker service update --image myapp:v2 web), Drain node for maintenance (docker node update --availability drain node1), Backup and restore with tar, Log rotation, 5) Security maintenance: Regular security updates (docker system prune), Vulnerability scanning (docker scan), Update base images. Best practices: Comprehensive monitoring, Automate scaling decisions, Regular backup testing, Security patch management, Capacity planning, Incident response procedures.