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How it works

AAGM already ships Prometheus, the push gateway, Grafana and a mysqld-exporter in docker-compose-promentheus.yml. The mysqld-exporter can be used to monitor AAGM's database.
After a "docker-compose -f docker-compose-promentheus.yml up -d" everything should connect automatically and after a few seconds metrics should be displayed in AAGM.

Configuration

Prometheus automatically pulls the metrics of all its targets every few seconds. The targets are configured in docker/prometheus/prometheus.yml. (13.08.2021)

global:
  scrape_interval: 15s

  external_labels:
    monitor: 'codelab-monitor'

scrape_configs:
  - job_name: 'prometheus'
    static_configs:
      - targets: [ 'host.docker.internal:9090' ]

  - job_name: 'aagmdb'
    static_configs:
      - targets: [ 'host.docker.internal:9104' ]

  - job_name: 'prometheus-pushgateway'
    scrape_interval: 1s
    honor_labels: true
    static_configs:
      - targets: [ 'host.docker.internal:9091' ]

Using an external Prometheus

The url of Prometheus and the Prometheus Pushgateway must be stored in the configuration of AAGM under general settings.

Prometheus must receive the push gateway as target as in line 16 above. Optionally, the database of AAGM can also be added.

View metrics directly in Prometheus

Here are a few examples of how to retrieve metrics directly in Prometheus.

Nodes:

• cpuLoadPercentage{name="Docker GW 1"}

• memoryLoadPercentage{hostPort="host.docker.internal:8444"}

• cpuLoadPercentage

...

APIs:

• allRequestsCount{name="APIIDA Metrics API"}

• allRequestsCount{job="Docker GW 1 APIIDA Metrics API"}

• allRequestsCount{nodeID="2"}

...

More filters can be added in the PrometheusPushGateway class. All possible filters can also be viewed there or directly on the PushGateway.

Useful

Grafan user: admin pass: admin

Links

https://prometheus.io/

https://github.com/prometheus/pushgateway

https://packagist.org/packages/promphp/prometheus_push_gateway_php

https://grafana.com/