/
exporter.go
61 lines (52 loc) · 1.91 KB
/
exporter.go
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/**
* Copyright contributors to the ibm-storage-odf-block-driver project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package prome
import (
"net/http"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
log "k8s.io/klog"
collector "github.com/IBM/ibm-storage-odf-block-driver/pkg/collectors"
"github.com/IBM/ibm-storage-odf-block-driver/pkg/rest"
)
func RunExporter(restClients map[string]*rest.FSRestClient, namespace string) {
c, err := collector.NewPerfCollector(restClients, namespace)
if err != nil {
log.Warningf("NewFSPerfCollector fails, err:%s", err)
}
// Use custom registry to remove default go metrics
r := prometheus.NewRegistry()
r.MustRegister(c)
handler := promhttp.HandlerFor(r, promhttp.HandlerOpts{})
http.Handle("/metrics", handler)
// prometheus.MustRegister(c)
// http.Handle("/metrics", promhttp.Handler())
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
var _, _ = w.Write([]byte(`<html>
<head><title>Promethues Exporter</title></head>
<body>
<h1>FlashSystem Overall Perf Promethues Exporter </h1>
<p><a href="/metrics">Metrics</a></p>
</body>
</html>`))
})
log.Info("Beginning to serve on port :9100")
// #nosec
if err = http.ListenAndServe(":9100", nil); err != nil {
log.Error(err, "failed to start http server")
panic(err)
}
}