Docker container monitoring and alerting are important aspects of production environment operations. Monitoring metrics include: container resource usage (CPU, memory, disk I/O, network I/O), container status (running, stopped, restart count), application health status (health check results), log error rate. Monitoring tools: Docker's built-in docker stats, Prometheus + cAdvisor, Grafana, Datadog, Sysdig, etc. Alerts can be implemented through Prometheus Alertmanager, Grafana Alerting, or custom scripts. Key alert items: container exit, resource usage exceeding thresholds, health check failures, high log error rate. It's recommended to set reasonable alert thresholds and notification channels to avoid alert fatigue.