forked from mirror/client_golang
Re-add some simple example binaries.
I intentionally left out the Makefile infrastructure that we had previously for this, as it's not strictly needed and adds complexity/maintenance burden.
This commit is contained in:
parent
376c7c732b
commit
06f26c5fa8
|
@ -0,0 +1,70 @@
|
|||
// Copyright 2015 Prometheus Team
|
||||
// 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.
|
||||
|
||||
// A simple example exposing fictional RPC latencies with different types of
|
||||
// random distributions (uniform, normal, and exponential) as Prometheus
|
||||
// metrics.
|
||||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"math/rand"
|
||||
"net/http"
|
||||
"time"
|
||||
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
var (
|
||||
addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
|
||||
uniformDomain = flag.Float64("random.uniform.domain", 200, "The domain for the uniform distribution.")
|
||||
normDomain = flag.Float64("random.exponential.domain", 200, "The domain for the normal distribution.")
|
||||
normMean = flag.Float64("random.exponential.mean", 10, "The mean for the normal distribution.")
|
||||
)
|
||||
|
||||
var (
|
||||
// Create a summary to track fictional interservice RPC latencies for three
|
||||
// distinct services with different latency distributions. These services are
|
||||
// differentiated via a "service" label.
|
||||
rpcDurations = prometheus.NewSummaryVec(
|
||||
prometheus.SummaryOpts{
|
||||
Name: "rpc_durations_microseconds",
|
||||
Help: "RPC latency distributions.",
|
||||
},
|
||||
[]string{"service"},
|
||||
)
|
||||
)
|
||||
|
||||
func init() {
|
||||
// Register the summary with Prometheus's default registry.
|
||||
prometheus.MustRegister(rpcDurations)
|
||||
}
|
||||
|
||||
func main() {
|
||||
flag.Parse()
|
||||
|
||||
go func() {
|
||||
for {
|
||||
// Periodically record some sample latencies for the three services.
|
||||
rpcDurations.WithLabelValues("uniform").Observe(rand.Float64() * *uniformDomain)
|
||||
rpcDurations.WithLabelValues("normal").Observe((rand.NormFloat64() * *normDomain) + *normMean)
|
||||
rpcDurations.WithLabelValues("exponential").Observe(rand.ExpFloat64())
|
||||
|
||||
time.Sleep(100 * time.Millisecond)
|
||||
}
|
||||
}()
|
||||
|
||||
// Expose the registered metrics via HTTP.
|
||||
http.Handle("/metrics", prometheus.Handler())
|
||||
http.ListenAndServe(*addr, nil)
|
||||
}
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2015 Prometheus Team
|
||||
// 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.
|
||||
|
||||
// A minimal example of how to include Prometheus instrumentation.
|
||||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"net/http"
|
||||
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
var addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
|
||||
|
||||
func main() {
|
||||
flag.Parse()
|
||||
http.Handle("/metrics", prometheus.Handler())
|
||||
http.ListenAndServe(*addr, nil)
|
||||
}
|
Loading…
Reference in New Issue