package apps import ( "log" "os/exec" "strings" "github.com/prometheus/client_golang/prometheus" ) func Postgres(m Metrics) { out, err := exec.Command("pg_config", "--version").Output() if err != nil { log.Printf(">> WARN: Unable to get Postgres version: %v", err) return } version := strings.Split(string(out), " ")[1] m.Postgres.With(prometheus.Labels{"version": version}).Set(1) }