OS2mo AMQP Trigger Metrics

This repository contains an OS2mo AMQP Trigger receiver that exposes metrics about changes in MO.

Usage

Adjust the AMQP_URL variable to OS2mo's running message-broker, either;

• directly in docker-compose.yml or
• by creating a docker-compose.override.yaml file.

Now start the container using docker-compose:

docker-compose up -d

You should see the following:

[info     ] Starting metrics server
[info     ] Register called                function=metrics_callback routing_key=*.*.*
[info     ] Starting AMQP system
[info     ] Establishing AMQP connection   host=msg_broker path=/ port=5672 scheme=amqp user=guest
[info     ] Creating AMQP channel
[info     ] Attaching AMQP exchange to channel exchange=os2mo
[info     ] Declaring unique message queue function=metrics_callback queue_name=os2mo-amqp-trigger-metrics_metrics_callback
[info     ] Starting message listener      function=metrics_callback
[info     ] Binding routing keys           function=metrics_callback
[info     ] Binding routing-key            function=metrics_callback routing_key=*.*.*

After which each message will add:

[debug    ] Received message               function=metrics_callback routing_key=org_unit.address.edit
[info     ] Message received               object_type=address payload=... request_type=edit service_type=org_unit

And at which point metrics should be available at localhost:8000:

...
# HELP os2mo_events_total AMQP Events
# TYPE os2mo_events_total counter
os2mo_events_total{request="edit",object="org_unit",service="org_unit"} 1.0
# HELP os2mo_events_created AMQP Events
# TYPE os2mo_events_created gauge
os2mo_events_created{request="edit",object="org_unit",service="org_unit"} 1.6273914312081306e+09