spring-bootprometheusprometheus-pushgateway

Spring PushGateway pushes metrics without an instance tag

Here's my config:

management.metrics.export.prometheus=true
management.metrics.export.prometheus.pushgateway.enabled=true
management.metrics.export.prometheus.pushgateway.push-rate=1m
management.metrics.export.prometheus.pushgateway.base-url=<IP>:9091
management.metrics.export.prometheus.pushgateway.job=myjob

Looking at the <IP>:9091/metrics endpoint of PushGateway, I see the following tags:

{instance="",job="myjob"}

Ideally, I'd like that "instance" will be the ip address and port of the running service.

It is worth mentioning I used honor_labels: true in the Promethoues conf.

How can I set (automatically if possible) the instance tag?

Thanks

Solution

  • The following - setting it as key-value in the grouping-key map - should do the trick:

    management.metrics.export.prometheus.pushgateway.grouping-key.instance=${hostname:localhost}:${server.port}

    You don't necessarily need to set the "job" property as it is derived from spring.application.name and then a fallback. See here.