Prometheus : Add Monitoring Target2024/09/06 |
Add Monitoring Target Nodes. |
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[1] | Install [node-exporter] package on the Node you'd like to add that includes features to get metric data of general resource on the System like CPU or Memory usage. |
root@node01:~ #
root@node01:~ # pkg install -y node_exporter service node_exporter enable root@node01:~ # service node_exporter start
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[2] | Add setting on Prometheus Server Configuration. |
root@dlp:~ #
vi /usr/local/etc/prometheus.yml ..... ..... scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. - job_name: "prometheus" # metrics_path defaults to '/metrics' # scheme defaults to 'http'. scheme: https tls_config: cert_file: /usr/local/etc/server.crt key_file: /usr/local/etc/server.key insecure_skip_verify: true basic_auth: username: 'admin' password: 'password' static_configs: - targets: ["localhost:9090"] - job_name: node # add new Host to [targets] line static_configs: - targets: ['localhost:9100', 'node01.srv.world:9100'] # alternatively, if you'd like to add to another group, # add [job_name] section like follows # any name is OK for [job_name] - job_name: Hiroshima static_configs: - targets: ['node01.srv.world:9100']root@dlp:~ # service prometheus restart
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[3] | Access to the Prometheus Web UI and click [Status] - [Targets] to verify new nodes are listed. |
[4] | To input query directly, it's possible to display specific Job or Node. The example below shows a Job for [node_load5]. ⇒ node_load5{job="Hiroshima"} |
[5] | The example below shows a Node for [node_memory_free_bytes]. ⇒ node_memory_free_bytes{instance=~"node01.*"} |
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