ece59b42bf
- Created .env.example files for Kafka, Kibana, KodBox, Kong, Langfuse, Logstash, n8n, Nginx, OceanBase, OpenCoze, RocketMQ, TiDB, and TiKV. - Added README.md and README.zh.md files for OceanBase, RocketMQ, TiDB, and TiKV, detailing usage, configuration, and access instructions. - Implemented docker-compose.yaml files for OceanBase, RocketMQ, TiDB, and TiKV, defining service configurations, health checks, and resource limits. - Included broker.conf for RocketMQ to specify broker settings. - Established a consistent timezone (UTC) across all services. - Provided optional port overrides in .env.example files for flexibility in deployment.
Elasticsearch
This service deploys Elasticsearch, a distributed search and analytics engine.
Services
elasticsearch: The Elasticsearch service.
Environment Variables
| Variable Name | Description | Default Value |
|---|---|---|
| ELASTICSEARCH_VERSION | Elasticsearch image version | 8.16.1 |
| ELASTICSEARCH_HTTP_PORT_OVERRIDE | Host port mapping for HTTP (maps to port 9200) | 9200 |
| ELASTICSEARCH_TRANSPORT_PORT_OVERRIDE | Host port mapping for transport (maps to port 9300) | 9300 |
| ELASTICSEARCH_CLUSTER_NAME | Name of the Elasticsearch cluster | docker-cluster |
| ELASTICSEARCH_DISCOVERY_TYPE | Discovery type for single-node setup | single-node |
| ELASTICSEARCH_SECURITY_ENABLED | Enable X-Pack security features | false |
| ELASTICSEARCH_SSL_ENABLED | Enable SSL/TLS | false |
| ELASTICSEARCH_HEAP_SIZE | JVM heap size | 1g |
Please modify the .env file as needed for your use case.
Volumes
elasticsearch_data: Elasticsearch data directory.elasticsearch_logs: Elasticsearch log directory../elasticsearch.yml: Optional custom Elasticsearch configuration file.
Usage
-
Start the service:
docker compose up -d -
Wait for Elasticsearch to be ready:
docker compose logs -f elasticsearch -
Test the connection:
curl http://localhost:9200
Basic Operations
# Check cluster health
curl http://localhost:9200/_cluster/health
# List all indices
curl http://localhost:9200/_cat/indices?v
# Create an index
curl -X PUT "localhost:9200/my-index"
# Index a document
curl -X POST "localhost:9200/my-index/_doc" \
-H "Content-Type: application/json" \
-d '{"name": "John Doe", "age": 30}'
# Search documents
curl -X GET "localhost:9200/my-index/_search" \
-H "Content-Type: application/json" \
-d '{"query": {"match_all": {}}}'
Memory Configuration
Elasticsearch requires sufficient memory to operate effectively. The default configuration allocates 1GB of heap memory. For production environments, consider:
- Setting
ELASTICSEARCH_HEAP_SIZEto 50% of available RAM (but not more than 31GB) - Ensuring the host has at least 2GB of RAM available
- Configuring swap memory appropriately
Health Check
The service includes a health check that verifies Elasticsearch cluster health.
Security Notes
- This configuration disables security features for ease of development
- For production, enable X-Pack security, SSL/TLS, and authentication
- Configure proper network security and firewall rules
- Regularly backup your indices and update Elasticsearch version