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Add the last few lines needed to show a new user how the Collector/Gatherer fits together #495

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Merged
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Nov 20, 2018
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Add the last few lines needed to show a new user how the Collector/Gatherer fits together #495

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17 changes: 16 additions & 1 deletion prometheus/example_clustermanager_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,13 @@

package prometheus_test

import "github.com/prometheus/client_golang/prometheus"
import (
"log"
"net/http"

"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)

// ClusterManager is an example for a system that might have been built without
// Prometheus in mind. It models a central manager of jobs running in a
Expand Down Expand Up @@ -124,4 +130,13 @@ func ExampleCollector() {
// variables to then do something with them.
NewClusterManager("db", reg)
NewClusterManager("ca", reg)

// Add the built in process and golang metrics to this registry
reg.MustRegister(
prometheus.NewProcessCollector(prometheus.ProcessCollectorOpts{}),
prometheus.NewGoCollector(),
)

http.Handle("/metrics", promhttp.HandlerFor(reg, promhttp.HandlerOpts{}))
log.Fatal(http.ListenAndServe(":8080", nil))
}