IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Agent Configuration API

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Agent Configuration API

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The Agent configuration API allows you to fine-tune your APM agent configuration, without needing to redeploy your application.

The following Agent configuration APIs are available:

Create or update configuration to create or update an Agent configuration
Delete configuration to delete an Agent configuration.
List configuration to list all Agent configurations.
Search configuration to search for an Agent configuration.

How to use APM APIs

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Expand for required headers, privileges, and usage details

Interact with APM APIs using cURL or another API tool. All APM APIs are Kibana APIs, not Elasticsearch APIs; because of this, the Kibana dev tools console cannot be used to interact with APM APIs.

For all APM APIs, you must use a request header. Supported headers are Authorization, kbn-xsrf, and Content-Type.

Authorization: ApiKey {credentials}

Kibana supports token-based authentication with the Elasticsearch API key service. The API key returned by the Elasticsearch create API key API can be used by sending a request with an Authorization header that has a value of ApiKey followed by the {credentials}, where {credentials} is the base64 encoding of id and api_key joined by a colon.

Alternatively, you can create a user and use their username and password to authenticate API access: -u $USER:$PASSWORD.

Whether using Authorization: ApiKey {credentials}, or -u $USER:$PASSWORD, users interacting with APM APIs must have sufficient privileges.

kbn-xsrf: true

By default, you must use kbn-xsrf for all API calls, except in the following scenarios:

The API endpoint uses the GET or HEAD operations
The path is allowed using the server.xsrf.allowlist setting
XSRF protections are disabled using the server.xsrf.disableProtection setting

Content-Type: application/json

Applicable only when you send a payload in the API request. Kibana API requests and responses use JSON. Typically, if you include the kbn-xsrf header, you must also include the Content-Type header.

Create or update configuration

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Request

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PUT /api/apm/settings/agent-configuration

Request body

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service

(required, object) Service identifying the configuration to create or update.

Properties of service

name: (required, string) Name of service
environment: (optional, string) Environment of service

settings

(required) Key/value object with option name and option value.

agent_name

(optional) The agent name is used by the UI to determine which settings to display.

Example

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PUT /api/apm/settings/agent-configuration
{
    "service": {
        "name": "frontend",
        "environment": "production"
    },
    "settings": {
        "transaction_sample_rate": "0.4",
        "capture_body": "off",
        "transaction_max_spans": "500"
    },
    "agent_name": "nodejs"
}

Delete configuration

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Request

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DELETE /api/apm/settings/agent-configuration

Request body

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service

(required, object) Service identifying the configuration to delete

Properties of service

name: (required, string) Name of service
environment: (optional, string) Environment of service

Example

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DELETE /api/apm/settings/agent-configuration
{
    "service" : {
        "name": "frontend",
        "environment": "production"
    }
}

List configuration

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Request

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GET /api/apm/settings/agent-configuration

Response body

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[
  {
    "agent_name": "go",
    "service": {
      "name": "opbeans-go",
      "environment": "production"
    },
    "settings": {
      "transaction_sample_rate": "1",
      "capture_body": "off",
      "transaction_max_spans": "200"
    },
    "@timestamp": 1581934104843,
    "applied_by_agent": false,
    "etag": "1e58c178efeebae15c25c539da740d21dee422fc"
  },
  {
    "agent_name": "go",
    "service": {
      "name": "opbeans-go"
    },
    "settings": {
      "transaction_sample_rate": "1",
      "capture_body": "off",
      "transaction_max_spans": "300"
    },
    "@timestamp": 1581934111727,
    "applied_by_agent": false,
    "etag": "3eed916d3db434d9fb7f039daa681c7a04539a64"
  },
  {
    "agent_name": "nodejs",
    "service": {
      "name": "frontend"
    },
    "settings": {
      "transaction_sample_rate": "1",
    },
    "@timestamp": 1582031336265,
    "applied_by_agent": false,
    "etag": "5080ed25785b7b19f32713681e79f46996801a5b"
  }
]

Example

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GET  /api/apm/settings/agent-configuration

Search configuration

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Request

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POST /api/apm/settings/agent-configuration/search

Request body

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service

(required, object) Service identifying the configuration.

Properties of service

name: (required, string) Name of service
environment: (optional, string) Environment of service

etag

(required) etag is sent by the agent to indicate the etag of the last successfully applied configuration. If the etag matches an existing configuration its applied_by_agent property will be set to true. Every time a configuration is edited applied_by_agent is reset to false.

Response body

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{
  "_index": ".apm-agent-configuration",
  "_id": "CIaqXXABmQCdPphWj8EJ",
  "_score": 2,
  "_source": {
    "agent_name": "nodejs",
    "service": {
      "name": "frontend"
    },
    "settings": {
      "transaction_sample_rate": "1",
    },
    "@timestamp": 1582031336265,
    "applied_by_agent": false,
    "etag": "5080ed25785b7b19f32713681e79f46996801a5b"
  }
}

Example

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POST /api/apm/settings/agent-configuration/search
{
    "etag": "1e58c178efeebae15c25c539da740d21dee422fc",
    "service" : {
        "name": "frontend",
        "environment": "production"
    }
}

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