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Update monitor-multiple-instances.md

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Ishan Jain 2023-03-27 10:59:55 +05:30 committed by GitHub
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examples/monitor-multiple-instances.md
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@ -123,15 +123,13 @@ To use the Grafana Agent Ansible role:
url: "{{ prometheus_url }}" url: "{{ prometheus_url }}"
``` ```
The playbook calls the `grafana_agent` role from the `grafana.grafana` Ansible collection. The playbook calls the `grafana_agent` role from the `grafana.grafana` Ansible collection.
The Agent configuration in this playbook send metrics and logs from the linux hosts to your prometheus and Loki data sources. The Agent configuration in this playbook send metrics and logs from the linux hosts to your prometheus and Loki data sources.
Refer to the [Grafana Ansible documentation](https://github.com/grafana/grafana-ansible-collection/tree/main/roles/grafana_agent#role-variables) to understand the other variables you can pass to the `grafana_agent` role. Refer to the [Grafana Ansible documentation](https://github.com/grafana/grafana-ansible-collection/tree/main/roles/grafana_agent#role-variables) to understand the other variables you can pass to the `grafana_agent` role.
When deploying the Agent across multiple instances for monitoring them, It is essential that the Agent is able to auto-detect the hostname for ease in monitoring. When deploying the Agent across multiple instances for monitoring them, It is essential that the Agent is able to auto-detect the hostname for ease in monitoring.
Notice that the label `instance` has been set to the value `${HOSTNAME:-default}`, which is substituted by the value of the HOSTNAME environment variable in the Linux host. Notice that the label `instance` has been set to the value `${HOSTNAME:-default}`, which is substituted by the value of the HOSTNAME environment variable in the Linux host.
To read more about the variable substitution, refer to the Grafana Agent [node_exporter_config](https://grafana.com/docs/agent/latest/configuration/integrations/node-exporter-config/) documentation. To read more about the variable substitution, refer to the Grafana Agent [node_exporter_config](https://grafana.com/docs/agent/latest/configuration/integrations/node-exporter-config/) documentation.
1. To run the playbook, run this command: 1. To run the playbook, run this command: