Postgres Exporter with own service discovery

Its SD does not depend on Prometheus SD. You only set the exporter address in prometheus config as a target,

then Exporter starts getting metric.

SD model

1. Get list of services names from consul

2. get service properties from consul

3. filter with tag specified in cli parameters

4. get parameters from the KV. Parameters' path are designed to be /kv/monitoring/service_name/tag

Advantages:

• Only one service's monitoring agent instead of N agents for N services

• Live service discovery w/o restarting/reloading

• Metrics are exported in background and stored in the cache. So it prevents high resources utilization.

Usage

Use aksentyev/postgres_exporter docker image to easy deploy the app.

Add your own metrics to the queries.yaml file. See exporter/queries.yaml.