prometheus/documentation/examples/remote_storage/example_receiver/server.go
Julius Volz b16371595d Add standalone remote storage bridge example
In preparation for removing specific remote storage implementations,
this offers an example of how to achieve the same in a separate process.
Rather than having three separate bridges for OpenTSDB, InfluxDB, and
Graphite, I decided to support all in one binary.

For now, this is in the example documenation directory, but perhaps we
will want to make a first-class project / repository out of it.
2017-02-01 13:22:41 +01:00

57 lines
1.5 KiB
Go

// Copyright 2016 The Prometheus Authors
// 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 main
import (
"fmt"
"io/ioutil"
"net/http"
"github.com/golang/protobuf/proto"
"github.com/golang/snappy"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/storage/remote"
)
func main() {
http.HandleFunc("/receive", func(w http.ResponseWriter, r *http.Request) {
reqBuf, err := ioutil.ReadAll(snappy.NewReader(r.Body))
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
var req remote.WriteRequest
if err := proto.Unmarshal(reqBuf, &req); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
for _, ts := range req.Timeseries {
m := make(model.Metric, len(ts.Labels))
for _, l := range ts.Labels {
m[model.LabelName(l.Name)] = model.LabelValue(l.Value)
}
fmt.Println(m)
for _, s := range ts.Samples {
fmt.Printf(" %f %d\n", s.Value, s.TimestampMs)
}
}
})
http.ListenAndServe(":1234", nil)
}