What is the integration method for Docker containers with log aggregation systems?

Integrating Docker containers with log aggregation systems enables centralized log management. Log aggregation tools: ELK Stack (Elasticsearch, Logstash, Kibana), EFK Stack (Elasticsearch, Fluentd, Kibana), Loki, Graylog. Deployment methods: 1) use Docker Compose to deploy log aggregation stack; 2) configure container log drivers (json-file, journald, fluentd); 3) use sidecar pattern to collect logs; 4) configure log parsing and indexing rules. Best practices: structured log output (JSON format), reasonable log level settings, avoid sensitive information leaks, configure log rotation, set log retention policies, implement log query and analysis.