The code in this repository implements a Prometheus exporter which monitors the status of processes ran by Upstart on Linux. Other init systems might be supported in the future, but the support for any is not currently under development.

Having installed a reasonably modern version of Go, run: go get github.com/trustly/prometheus_service_exporter. This should produce a binary under $GOPATH/bin.

The binary expects at least two command line arguments:

1. The port to listen on. All interfaces are currently always listened on. This argument is required because no port has been allocated for service exporter's use.
2. The name of the service to monitor, e.g. "cron".

These two required arguments can be followed up with more service names.

Service exporter runs "service foo status" during normal operation to figure out the status and PID of the process started by each service. On some operating systems (such as Ubuntu) this requires the package "dbus" to be installed.