Use internal collection to send monitoring data [monitoring-internal-collection]

Use internal collectors to send {{beats}} monitoring data directly to your monitoring cluster. Or as an alternative to internal collection, use Use {{metricbeat}} collection. The benefit of using internal collection instead of {{metricbeat}} is that you have fewer pieces of software to install and maintain.

1. Create an API key or user that has appropriate authority to send system-level monitoring data to {{es}}. For example, you can use the built-in beats_system user or assign the built-in beats_system role to another user. For more information on the required privileges, see Create a monitoring user. For more information on how to use API keys, see Grant access using API keys.

2. Add the monitoring settings in the Metricbeat configuration file. If you configured the {{es}} output and want to send Metricbeat monitoring events to the same {{es}} cluster, specify the following minimal configuration:

   yamlCopy

   monitoring:
     enabled: true
     elasticsearch:
       api_key:  id:api_key <1>
       username: beats_system
       password: somepassword
   

   1. Specify one of api_key or username/password.

   If you want to send monitoring events to an {{ecloud}} monitoring cluster, you can use two simpler settings. When defined, these settings overwrite settings from other parts in the configuration. For example:

   yamlCopy

   monitoring:
     enabled: true
     cloud.id: 'staging:dXMtZWFzdC0xLmF3cy5mb3VuZC5pbyRjZWM2ZjI2MWE3NGJmMjRjZTMzYmI4ODExYjg0Mjk0ZiRjNmMyY2E2ZDA0MjI0OWFmMGNjN2Q3YTllOTYyNTc0Mw=='
     cloud.auth: 'elastic:YOUR_PASSWORD'
   

   If you configured a different output, such as {{ls}} or you want to send Metricbeat monitoring events to a separate {{es}} cluster (referred to as the monitoring cluster), you must specify additional configuration options. For example:

   yamlCopy

   monitoring:
     enabled: true
     cluster_uuid: PRODUCTION_ES_CLUSTER_UUID <1>
     elasticsearch:
       hosts: ["<HOST_URL_1>:<PORT_1>", "<HOST_URL_2>:<PORT_2>"] <2>
       api_key:  id:api_key <3>
       username: beats_system
       password: somepassword
   

   1. This setting identifies the {{es}} cluster under which the monitoring data for this Metricbeat instance will appear in the Stack Monitoring UI. To get a cluster’s cluster_uuid, call the GET / API against that production cluster.
   2. This setting identifies the hosts and port numbers of {{es}} nodes that are part of the monitoring cluster.
   3. Specify one of api_key or username/password.

   If you want to use PKI authentication to send monitoring events to {{es}}, you must specify a different set of configuration options. For example:

   yamlCopy

   monitoring:
     enabled: true
     cluster_uuid: PRODUCTION_ES_CLUSTER_UUID
     elasticsearch:
       hosts: ["<HOST_URL_1>:<PORT_1>", "<HOST_URL_2>:<PORT_2>"]
       username: ""
       ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]
       ssl.certificate: "/etc/pki/client/cert.pem"
       ssl.key: "/etc/pki/client/cert.key"
   

   You must specify the username as "" explicitly so that the username from the client certificate (CN) is used. See SSL for more information about SSL settings.

3. Start Metricbeat.

4. View the monitoring data in {{kib}}.