Elasticsearch

Elasticsearch connector allows querying Elasticsearch clusters using their native REST API.

Config Schema

Field	Type	Required	Description
type	string	yes	constant: elasticsearch
hosts	string[]	yes	List of Elasticsearch nodes (e.g., [“http://localhost:9200”])
user	string	no	Username for authentication
password	string	no	Password for authentication
api_key	string	no	API key for authentication (alternative to username/password)
cloud_id	string	no	Cloud ID for Elastic Cloud deployments
index	string	no	Default index to query
tls_verify	boolean	no	Verify TLS certificates (default: true)
conn_string	string	no	Direct connection string

Config example:

connection:
    type: elasticsearch
    hosts:
    - http://localhost:9200
    - http://es-node2:9200
    user: elastic
    password: secret
    index: my_index
    tls_verify: true

Or as alternative with direct connection string:

connection:
    type: elasticsearch
    conn_string: https://elastic:secret@localhost:9200

Authentication Methods

The connector supports multiple authentication methods:

1. Basic Authentication (username/password)
2. API Key Authentication
3. No Authentication (for development)

For Elastic Cloud deployments, you can use the cloud_id parameter instead of hosts:

connection:
    type: elasticsearch
    cloud_id: deployment:dXMtZWFzdC0xLmF3cy5mb3VuZC5pbyQ0ZmE...
    api_key: your_api_key

Notes

• The connector uses the official Elasticsearch Go client
• For high availability, specify multiple hosts - the client will automatically handle failover
• TLS is required for production deployments
• When using API keys, both username and password should be omitted
• The index parameter is optional but recommended to set a default index for queries
• Supports Elasticsearch version 7.x and above